Sounds from Space

 

Sounds from Scientific, Meteorological and Commercial Satellites 2006-2011

This part of my audio collection is dedicated to commercial and scientific satellites. I started this separate section when Greg Roberts, ZS1BI in Cape Town, started to convert some of his old recordings from a tape recorder with elastic belt drives to electronic format. Greg is a retired professional astronomer and since 1957 has been actively involved in the tracking of artificial satellites, both by optical and radio means. Click on his picture to the right to get more information about him and his activities.

Greg Roberts ZS1BI

Many thanks to Greg Roberts ZS1BI for getting this section started and to all the other people who kindly contributed: Alois Ochojski DL3PD/SK, Roy Welch W0SL, Sven Grahn, Kurt Ringel DF7FU, Chris Gross, Mike D. Kenny, Brian Hougesen OZ1SKY, Michael Fletcher OH2AUE, Dale Ireland, Alan Banks, Paul Marsh M0EYT, Patrick DK193WN, Mike Rupprecht DK3WN, Loren Moline WA7SKT, Maik Hermenau, Jean-Louis Rault F6AGR, Dick Flagg AH6NM, Don P. Mitchell, Bill Chaikin KA8VIT, Dick Daniels W4PUJ/SK, Patrick Hajagos, Henk Hamoen PA3GUO, Thomas Koziel DG3IX, Tobias Lindemann, Josef Huber, Tetsu-san JA0CAW, Jan PE0SAT, Nils von Storch, Darko 9A3LI, Federico Manzini, Phil Williams, Jos Heymann, Roland Proesch DF3LZ, Davide D'Aliesio IW0HLG, Giulio Manzoni IV3DTB/9V1FC, Fer Paglia IW1DTU, Enrico Gobbetti IW2AGJ, Raydel Abreu Espinet CM2ESP, Flavio PY2ZX, Frederick W. Krappe, Colin Mackellar, Aitor Conde, Davide D'Aliesio IW0HLG, Jean-Pierre Godet F5YG, Milen Rangelov, Francisco EA7ADI, Luc VE2FXL, Roland PY4ZBZ and Rob PA0RWE.

Picture

Object name
#NORAD

Description

Launch
Date

Weight

EROS B-1
EROS B1
#29079
(2006-014A)

EROS B-1 (Earth Resources Observation Satellite) is an Israeli commercial/military photo-imaging satellite that was launched by a START 1 rocket(SS-25) from a mobile pad at Svobodny in far-eastern Russia . The satellite is capable of taking images at a resolution of 70 cm.

Apr 25th 2006

360 kg

The S-Band downlink on 2295 MHz of EROS B-1 was received and enclosed FFT plot was generated in April 2014 by Milen Rangelov.

HINODE
SOLAR B
#29479
(2006-041A)

The Solar-B mission consists of a coordinated set of optical, X-ray and EUV telescopes. The optical telescope is a diffraction limited, aplanatic Gregorian with an aperture of 0.5 m. It provides angular resolution of about 0.2 arcsec over the field of view of about 400 × 400 arcsec. The focal plane package of the optical telescope consists of a filter vector magnetograph and a spectro-polarimeter. This combination allows us to obtain, for the first time, a continuous series of high-precision vector magnetograms, Dopplergrams, and filtergrams with sub-arcsec resolution. The X-ray telescope images the high temperature (0.5 to 10 MK) corona with improved angular resolution, say approximately 1 arcsec, a few times better than Yohkoh's soft X-ray telescope. The Extreme Ultraviolet (EUV) Imaging Spectrometer aims to determine velocity fields and other plasma parameters in the corona and transition region, thus helping to relate coronal dynamic behavior, observed with the X-ray telescope, to the underlying photospheric magnetic field, observed with the optical telescope. The EUV-imaging spectrometer is also expected to unveil inflow and outflow of magnetic reconnection, and hence together with the two other telescopes, to finally solve long-standing controversies on coronal heating and dynamics. After the successful launch, Solar B has been renamed to Hinode ("Sunrise").

Sep 22nd 2006

870 kg

The S-Band TT&C downlink on 2256.22 MHz of HINODE was received and enclosed FFT plot was generated in June 2014 by Milen Rangelov.

MetOp-A
#29499
(2006-044A)

MetOp-A is the first European polar orbiting satellite. MetOp-A carries a suite of 13 instruments to closely observe weather systems and climate trends. Five of these are considered new and were developed in Europe. The others are provided by NOAA and the French space agency, CNES, having flown on several earlier U.S. weather satellites. MetOp-A includes an UHF receiver (401.65 MHz) and signal processor for locating and/or collecting meteorological data from remote fixed and free floating terrestrial and atmospheric platforms. The UHF downlink for this ADCS (Advanced Data Collection System) system is at 465.9875 MHz where Metop-A transmits data with 200 bit/s or 400 bit/s.
Furthermore it features a VHF/UHF transponder and signal processor for locating and collecting information from remote distress platforms such as Emergency Locator Transmitters (ELTs) transmitting on 121.5 (± 20 kHz), 243.0 (± 30 kHz), and 406.05 MHz (± 80 kHz), and Emergency Position Indicating Radio Beacons (EPIRBs) transmitting on 406 MHz. These bands are then summed with 2.4 kbps data from the SARP-3 (beacons of aircraft and ships in distress) unit and the resulting signal phase-modulates the L-band downlink transmitter (1544.5 MHz ± 400 kHz).

Oct 19th 2006

4100 kg

The spectrum plots of the S-Band downlink at 2230 MHz were recorded by Paul M0YET on Sept 30th 2007 at 20:43UTC and on Nov 13th 2007 at 10:42UTC.

Enclosed audio signal of the L-band downlink of Metop-A was received on May 2nd 2011 at 09:47 UTC at 1544.500 MHz in USB. Many thanks to Greg Roberts for kindly providing this recording.

Enclosed audio signal from Metop-A was received on December 28nd 2011 at 21:08 UTC at 2230 MHz. Many thanks to Paul Marsh for kindly providing this recording.

GeneSat-1
#29655
(2006-058C)

GeneSat-1 was built by NASA and Santa Clara State University and carried biological experiments (E.Coli K-12 bacteria). It used the ham radio callsign KE7EGC in spite of the fact that it was not an official ham radio satellite. It operated on a downlink of 437.067 MHz and transmitted 1200bd AX.25 packets. Recorded on December 17th 2006 at 03:22 UTC on 437.067 MHz in FM by Mike DK3WN.

Dec 16th 2006

4.6 kg

IRS-P7
Cartosat 2
Cartosat 2AT
#29710
(2007-001B)

CartoSat 2 is an Indian photo-imaging craft that was launched by a PSLV-C7 rocket from Sriharikota. The  spacecraft provides panchromatic images at one-meter resolution, to aid civil planning, and other cartographic needs. Cartosat-2 suffered from some problems after launch.

Jan 10th 2007

680 kg

The S-Band downlink on 2245.7 MHz of IRS-P7 was received and enclosed FFT plot was generated between March and May 2014 by Milen Rangelov.

Saudisat-3
#31118
(2007-012B)

SaudiSat 3 is a Saudi Arabian minisatellite that was launched by a Dnepr rocket from Baikonur. The minisatellite carries a high resolution imager, built in collaboration with KACST's faculty and students.

Apr 17th 2007

200 kg

Enclosed audio files as well as the waterfall diagrams were recorded on October 7th 2012 around 20:30 UTC on 422.123 MHz while Saudisat-3 was in range of Arabia and thus transmitting. Please note that Saudisat-3 is not always transmittin gin that format. Kindly provided by Darko 9A3LI.

Enclosed audio files as well as the waterfall diagrams were recorded on October 7th 2012 around 22:43 UTC on 422.490 MHz while Saudisat-3 was in range of Arabia and thus transmitting. Please note that Saudisat-3 is not always transmittin gin that format. Kindly provided by Darko 9A3LI.

AIM
Explorer 90
#31304
(2007-015A)

The scientific purpose of the Aeronomy of Ice in the Mesosphere (AIM) mission is focused on the study of Polar Mesospheric Clouds (PMCs) that form about 50 miles above the Earth's surface in summer and mostly in the polar regions. The overall goal is to resolve why PMCs form and why they vary. AIM e was launched into a circular 550 km sun-synchronous noon orbit by a Pegasus rocket Its expected lifetime was at least two years.

Apr 25th 2007

200 kg

The S-Band downlink on 2283.5 MHz of AIM was received and enclosed FFT plot was generated in March 2014 by Milen Rangelov.

COSMO-Skymed 1
SKYMED 1
#31598
(2007-023A)

COSMO-SkyMed 1 is an Italian Earth-imaging Synthetic Aperture Radar that was launched by a Delta 2 rocket from Vandenberg AFB. COSMO is the abbreviation of COnstellation of small Satellites for the Mediterranean basin Observation. It is a dual use satellite (civilian and military use). The 1.7 ton, 3.6 kW craft is the first of a four-satellite constellation, and carries an X-band (9.6 GHz) radar. The swath width is variable and provides images at a resolution between 1 to 100 meters (in civilian mode).

Jun 8th 2007

1700 kg

The S-Band downlink on 2230 MHz of SKYMED 1 was received and enclosed FFT plot was generated in April 2014 by Milen Rangelov.

Sar-Lupe 3
#32283
(2007-053A)

Sar Lupe 3 is a German military, Synthetic Aperture Radar (SAR) satellite that was launched by a Kosmos 3M rocket from Plesetsk into a 486 km high LEO. The radar operates at an X-band frequency to provide images at less than one-meter resolution. The Sar-Lupe system is a constellation of five identical satellites in three orbital planes.

Nov 1st 2007

770 kg

The S-Band downlink on 2273 MHz of Sar-Lupe 3 was received and enclosed FFT plot was generated in April to May 2014 by Milen Rangelov.

COSMO-Skymed 2
SKYMED 2
#32376
(2007-059A)

COSMO-SkyMed 2 is an Italian Earth-imaging Synthetic Aperture Radar that was launched by a Delta 2 rocket from Vandenberg AFB. COSMO is the abbreviation of COnstellation of small Satellites for the Mediterranean basin Observation. It is a dual use satellite (civilian and military use). The 1.7 ton, 3.6 kW craft is the second of a four-satellite constellation, and carries an X-band (9.6 GHz) radar. The swath width is variable and provides images at a resolution between 1 to 100 meters (in civilian mode).

Dec 9th 2007

1700 kg

The S-Band downlink on 2230 MHz of SKYMED 2 was received and enclosed FFT plot was generated in April 2014 by Milen Rangelov.

IRS-2A
Cartosat-2A
#32783
(2008-021A)

Cartosat-2A is an advanced remote sensing satellite with a single panchromatic camera capable of providing scene-specific spot imageries for cartographic applications. The camera is designed to provide imageries with better than one meter spatial resolution and a swath of 10 km. The satellite has high agility with capability to steer along and across the track up to + 45 degrees. It was placed in a sun-synchronous polar orbit at an altitude of 630 km.

Apr 28h 2008

690 kg

The S-Band downlink on 2245.7 MHz of IRS-2A was received and enclosed FFT plot was generated between March and May 2014 by Milen Rangelov.

CanX-2
#32797
(2008-021L)

CanX-2 (Canadian Advanced Nanospace eXperiments) was built by University of Toronto, Canada and was launched together with 6 amateur radio cubesats. With a size of 10x10x34cm and a weight of 3.5 kg it is the second nano-satellite within the Canadian Advanced Nanospace eXpermiment (CanX). CanX-2 transmits data on its S-band downlink in the 2.2 GHz Space Research Service Band. Due to power limitations this transmitter is only activated when the satellite is over the ground station in Toronto, Canada. Its 70cm transmitter (437.478 MHz, 4 kbps GFSK) has not been turned on yet.

Apr 28th 2008

3.5 kg

COSMOS 2438
KOSMOS 2438
Strela-3 #138
#32955
(2008-025C)

Cosmos 2438 was launched together with Cosmos 2437 and COMOS 2439 by a Rokot-KM rocket from Plesetsk on May 23rd 2008. COSMOS 2438 is used for store-dump communications by Russian government and military.

May 23rd 2008

200 kg

COSMOS 2438 was received by Roland Proesch DF3LZ on December 26th 2013 at 15:21 UTC on 244.5125 MHz in USB.
The first sound file contains multiple bursts, the second soundfile only a single burst. The spectrogam shows the ID of the satellite. Sound files kindly provided by Roland Proesch DF3LZ.

Sar-Lupe 5
#33244
(2008-036A)

Sar Lupe 5 is a German military, Synthetic Aperture Radar (SAR) satellite that was launched by a Kosmos 3M rocket from Plesetsk into a 484km high LEO. The radar operates at an X-band frequency to provide images at less than one-meter resolution. The Sar-Lupe system is a constellation of five identical satellites in three orbital planes.

July 22nd 2008

770 kg

The S-Band downlink on 2273 MHz of Sar-Lupe 5 was received and enclosed FFT plot was generated in April to May 2014 by Milen Rangelov.

COSMO-Skymed 3
SKYMED 3
#33412
(2008-054A)

COSMO-SkyMed 3 is an Italian Earth-imaging Synthetic Aperture Radar that was launched by a Delta 2 rocket from Vandenberg AFB. COSMO is the abbreviation of COnstellation of small Satellites for the Mediterranean basin Observation. It is a dual use satellite (civilian and military use). The 1.7 ton, 3.6 kW craft is the second of a four-satellite constellation, and carries an X-band (9.6 GHz) radar. The swath width is variable and provides images at a resolution between 1 to 100 meters (in civilian mode).

Oct 25th 2008

1700 kg

The S-Band downlink on 2230 MHz of SKYMED 3 was received and enclosed FFT plot was generated in May 2014 by Milen Rangelov.

STS-126
Endeavour OV-105
 
#33441
(2008-059A)

STS-126 is the 27th shuttle mission to the International Space Station. STS-126 delivered the italian MPLM (multi purpose logistic module) "Leonardo" which gave the International Space Station ISS the ability to support twice the crew than previously living there.
The spectrum plot of the S-band downlink at 2217.5 MHz was recorded on November 16th 2008 05:17UTC by Loren WA7SKT. You can see the multiple subcarriers containing data.

Nov 15th 2008

2048979 kg

Yaogan-4
YG 4
JB-6 2
#33446
(2008-061A)

Yaogan 4 is a remote sensing satellite launched on a Long March 2D rocket from Jiuquan Satellite Launch Center in northwestern China's Gansu Province into a 652km high LEO.

Dec 1st 2008

xx kg

The S-Band downlink on 2216.55 MHz of Yaogan-4 was received and enclosed FFT plot was generated between March and May 2014 by Milen Rangelov.

OMID
 
#33506
(2009-004A)

OMID (Iranian for "hope") is the 1st satellite built and launched domestically by Iran on a Safir 2 rocket. It is a small technology satellite carrying an instrument to measure the space environment, and a GPS receiver modified for use in the unstabilized satellite. Its mission is defined to be data-processing for research and telecommunications. The downlink frequencies coordinated by ITU are 464.98750 MHz and 465.01250 MHz (@ +7 dBW). The uplink command frequency is at 401 MHz.

Feb 2nd 2009

25 kg

The telemetry downlink signal was received by Paul M0YET using a receiver with a NFM demodulator (15kHz bandwidth). It is a 600Bd manchester encoded data stream (300Bd data).

Paul M0YET kindly provided the enclosed spectrum plot of the downlink signal which he recorded on Feb 4th 2009 at 17:18h UTC. Please note that the downlink is not continuously activated and seems to be switched between 2 different TX modes.

NOAA 19
NOAA N'
#33591
(2009-005A)

NOAA N' was severly damaged in an factory accident in September 2003. Therefore the launch was delayed until early 2009 when it was finally launched on a Delta-II rocket from Vandenberg Airforce Base in USA. The APT downlink frequencies are VTX-1: 137.100 MHz and VTX-2: 137.9125 MHz. After launch it started using VTX-2. Also the S-band AVHRR downlink signal on 1702.5 MHz was received. The beacon frequency is 137.770 MHz. The HRPT downlink frequency is 1698 MHz.

Feb 6th 2009

1457 kg

Paul M0YET detected an additional downlink signal on 465.99 MHz using the modulation: 400 bps HDLC, Bi-phase-L, PM . It comes from the ARGOS-3 A-DCS system. He recorded the spectrum plot on Feb 7th 2009 at 11:30h UTC.

This sound file and the associated APT picture shown on the right were received by Mike DK3WN on Feb 7th 2009 around 13:15UTC on 137.9125 MHz.

Mike Kenny in Australia received APT signals of NOAA 19 during north-bound passes in the Southern Hemisphere. The audio file was recorded on February 8th 2009 at 04:03UTC. The picture was recorded on February 7th 2009 at 04:07UTC.

Enclosed excellent picture from NOAA 19 was received on April 17th 2011 at 13:14 UTC by DG3IX. Kindly provided by Thomas DG3IX.

During my summer vacation 2011 I received NOAA 19 multiple times. You can find a number of pictures following the link associated with the picture to the right. Here is a sound file recorded on 137.100 MHz on August 21st 2011 at 11:04 UTC by DD1US.

Also in 2012 NOAA-19 was transmitting excellent pictures like the one enclosed. NOAA-19 was received on 137.100 MHz in FM on May 6th 2012 at 11:11 UTC by DD1US.

In January 2015 NOAA-19 continued to transmit excellent pictures. Enclosed spectrum plot was received on 137.100 MHz in FM on January 25th 2015 at 10:54 UTC by DD1US.

GOCE
Earth Explorer 1
#34602
(2009-013A)

GOCE (Gravity field and steady-state Ocean Circulation Explorer) was a European (ESA) Earth science satellite designed to measure Earth's gravitational field to create very high-resolution maps of the geoid. These maps were to provide the baseline for measurements of ocean circulation and sea-level change.

The 1050 kg spacecraft was 5 m long by 1 m wide with fixed solar arrays producing 1.3 kW of power. The satellite carried six high-sensitivity accelerometers arranged along three axes of the spacecraft. To enable the satellite to acquire high-resolution measurements the satellite traveled at a low orbital altitude (260 km) at which atmospheric drag effects are still significant. To compensate for these effects the satellite had a sleek arrow-shaped design to reduce drag and small winglets and a tail fin to stabilize the spacecraft. GOCE's orbital altitude was maintained with the assistance of an ion engine on-board.

GOCE that was launched on March 17th 2009 at 14:21 TUC from Plesetsk on a Rockot/Breeze KM launch vehicle. The GOCE satellite re-entered the Earth's atmosphere shortly before midnight UTC on November 10th 2013 after finally running out of fuel.

March 17th 2009

1100 kg

The S-band downlink signal of GOCE at 2245 MHz was received by M0EYT in the early evening of November 10th 2013 at 18:54 UTC, only a few hours before the re-entry of the satellite. The spectrum plot was kindly provided by Paul Marsh M0EYT.

Yaogan-6
YG 6
JianBing 7
JB-7 1
#34839
(2009-021A)

Yaogan 6 is a remote sensing satellite launched on a Long March 2C rocket from the Taiyuan Satellite Launch Center in China's north Shanxi Province into a 520 km high LEO.

Apr 22nd 2009

xx kg

The S-Band downlink on 2296.52 MHz of Yaogan-6 was received and enclosed FFT plot was generated between March and May 2014 by Milen Rangelov.

PharmaSat-1
#35002
(2009-028B)

PharmaSat-1 is s a follow on to the highly successful GeneSat-1 Mission. The Ames Small Spacecraft Division is collaborating with industry and local universities to develop the next generation fully-automated, miniaturized triple cubesat spaceflight system for biological payloads. The PharmaSat experiment and flight system are designed to measure the influence of microgravity upon yeast resistance to an antifungal agent. PharmaSat implements PI guided science focused on questions key to countermeasure development for long-term space travel and habitation. It uses a FM 1k2 AFSK AX.25 communications downlink at 437.465 MHz. Received by Mike DK3WN on May 21st 2009 at 16:25 UTC.

May 19th 2009

5 kg

HawkSat-1
#35003
(2009-028C)

HawkSat-1 is a single-unit Cubesat which was built and will be operated by the Hawk Institute for Space Science. It is based on a CubeSat kit from Pumpkin Incorporated and carries a technology demonstration payload, primarily as a proof-of-concept mission, testing command, data and power subsystems. It is powered by solar cells. Experimental data will be returned to Earth by means of a store and dump communications systems. The downlink frequency is 437.345 MHz.

May 19th 2009

1 kg

PolySat CP6
#35004
(2009-028D)

CP6 was built at California Polytechnic State University at San Luis Obispo. Its primary mission is to implement an attitude control system using only magnetic torquers embedded within the side panels. Attitude determination is performed using two-axis magnetometers on each side panel as well as observation imagers on the payload face. Once the primary objectives have been met, a command will be sent to deploy the secondary payload that consists of a series of spring steel tapes supporting an electron collection experiment provided by Naval Research Laboratory. CP6 uses two FM 1k2 AFSK AX.25 communications downlinks with transmit power of 1 W. The estimated center frequencies of the alternating transmitters (several burst COMM A, then COMM B) are COMM A = 437.3655 MHz and COMM B = 437.3664 MHz. Received by Mike DK3WN on May 20th 2009 at 17:59 UTC.

May 19th 2009

1 kg

Enclosed signal was recorded on July 31st 2009 at 08:45 UTC by Mike DK3WN.

Meridian 2
Meridian 12 L
14F112
#35008
(2009-029A)

Meridian 2 is a Russian military/government communications satellite launched on a Soyuz 2-1a rocket with a Fregat upper stage from Plesetsk, Russia. Meridian combines the military and civilian tasks of the former Molniya-1 and Molniya-3 satellites, together with the clandestine communications function of the outgoing LEO Parus satellites. Meridian 2 did not reach its target orbit which is a highly elliptical orbit (HEO) with an inclination of 63°, also called Molniya orbit. Nevertheless Meridian 2 is operational. Meridian 2 has multiple transponders:
P-Band downlink: 277.4 - 278.4 MHz,
UHF-Band downlink: 484.0 MHz 38 kHz wide,
C-Band downlink: approx. 3600 MHz.

May 21st 2009

> 2000 kg

Paul Marsh received on the C-Band downlink at 3610 MHz a low data rate FSK signal of Meridian 2 on January 2nd 2015 at 16:47 UTC. Audio recording kindly provided by Paul Marsh M0EYT.

UK-DMC 2
DMC-2
#35683
(2009-041C)

DMC 2, a UK remote sensing satellite also known as UK-DMC 2, was launched on a Dnepr rocket from Baikonur. The satellite gathers wide-angle, medium-resolution images. DMC 2 joined the international Disaster Monitoring Constellation (DMC), a fleet of small Earth-watching satellites designed to provide quick-response imagery to emergency managers worldwide. DMC images are also used for mapping, urban planning, and resource management.

July 29th 2009

97 kg

The S-Band downlink on 2233.33 MHz of UK-DMC 2 was received and enclosed FFT plot was generated in May 2014 by Milen Rangelov.

Meteor M1
Meteor-M-1
#35865
(2009-049A)

Meteor M1 is a Russian weather satellite launched on a Soyuz 2 (#7) rocket from Baikonur into a 840 km sun-synchronous orbit. This new generation of weather satellites features digital VHF transmissions (LRPT) instead of the traditional analog APT transmissions. The downlink frequency is 137.100 MHz.

Sept 17th 2009

2755 kg

Enclosed signal was recorded on Dec. 19th 2009 at 20:10 UTC by Mike DK3WN.

On May 28th 2013 Meteor M1 changed frequency from 137.100 MHZ to 137.900 MHz. Simultaneously the LRPT mode was switched from 72 kbps QPSK to 80 kbps Unique Word QPSK.

On November 7th 2015 at 08:25 UTC enclosed strong signal from Meteor M1 was received on 137.096 MHz. Received and recorded by DD1US.

On the same day on November 7th 2015 at 14:27 UTC Luc VE2FXL received and decoded a picture of Meteor-M-1 also on 137.096 MHz. The datarate is 80kbps. Pictures kindly provided by Luc VE2FXL.

UGATUSAT
RS-28
#35868
(2009-049D)

Ugatusat (Ufimskiy Gosudarstvenniy Aviatsionniy Tekhnicheskiy Universitet Satellite) is a remote sensing and educational satellite developed by Ugatu (Ufa State Aviation Technical University) and built by PO Polyot. It features a camera with a resolution of 50m. Ugatusat was launched on a Soyuz 2 (#7) rocket into a 823km circular orbit with an inclination of 98.8°. Ugatusat failed end of 2009.

Sept 17th 2009

35 kg

Ugatusat transmitted CW on 435.264 MHz using the callsign RS-28. Enclosed CW beacon signal was recorded on Sept. 27th 2009 at 19:00 UTC by Mike DK3WN.

Tatyana-2
Tatiana-2
Universitetsky 2
RS-38
#35869
(2009-049E)

Tatyana-2 is a small (100kg) international research and educational satellite built under the lead of Moscow State University (MGU) in cooperation with Ewha Womans University (EWU) in Seoul, Korea, Seoul National University, Pusan (Korea) National University and University of Puebla (BUAP), Mexico.
The satellite is 3 axis stabilized and has 3 scientific mission objectives:
1.) to investigate light phenomena in the Earth’s atmosphere due to the effect of galaxy cosmic rays and high-energy charged particles
2.) to investigate en-route radiation conditions
3.) to investigate variations of the Earth’s gravitational and magnetic fields.
Its reported downlink frequencies are:
- VHF (145 MHz for 1.2 kbit/s TT&C data),
- UHF (435.440 MHz and 435.490 MHz for onboard systems telemetry CW abd 9.6 kbit/s DOKA)
- L-band (1.708 GHz 665.4kbit/s for scientific telemetry). Tatyana uses the callsign RS-38 for its CW transmissions on 435.490 MHz.

Sept 17th 2009

98 kg

The CW downlink of RS-38 on 435.490 MHz was recorded on December 30th at 09:30 UTC by DD1US. The first part of the 5 min recording was demodulated in CW mode, the last part in NFM mode.

SwissCube
#35932
(2009-051B)

SwissCube is the first satellite entirely built in Switzerland. This 10x10x10cm Cubesat was mainly built by more than 180 students from different universities under the supervision of the Swiss Space Center EPFL in Lausanne. It was launched via the PSLV (Polar Satellite Launch Vehicle) from Satish Dhawan Space Center in India. It contains a Ham Radio downlink transmitting on 437.505 MHz using the callsign HB9EG/1. Enclosed CW beacon signal was recorded on Sept. 25th 2009 at 11:06 UTC by Mike DK3WN.

Sept 23rd 2009

1 kg

Enclosed CW beacon signal was recorded on Sept. 26th 2009 at 11:56 UTC by Mike DK3WN.

Enclosed recording of the 1200bd BPSK downlink signal was kindly provided by Mike DK3WN.

On January 6th 2015 at 14:13 UTC Francisco EA7ADI received the CW signal of SwissCube. Recording kindly provided by Francisco EA7ADI.

UWE-2
#35933
(2009-051C)

UWE-2 is the second cubesat built by the University of Wuerzburg in Germany. It was launched via the PSLV (Polar Satellite Launch Vehicle) from Satish Dhawan Space Center in India. The published downlink is 437.385 MHz (FSK, 1k2 AFSK / 9k6 FSK AX.25) with a transmit power of 0.5W.

Sept 23rd 2009

1 kg

Enclosed 1k2 AFSK packet radio downlink signal was recorded on Sept 25th 2009 at 12:44 UTC by Mike DK3WN. Please note that the long pauses between the packets were removed to reduce the file size.

BeeSat
#35934
(2009-051D)

BeeSat is a 10x10x10cm Cubesat built by the University of Berlin. It was launched via the PSLV (Polar Satellite Launch Vehicle) from Satish Dhawan Space Center in India. It contains a Ham Radio downlink transmitting with 100mW output power on 436.0 MHz. Signals are either CW or 4k8/9k6 GMSK telemetry both using the callsign DP0BEE. Beesat is not using AX.25 format but Mobitex format. The used modem is a CMX909B(CML).

Sept 23rd 2009

1 kg

Enclosed signal was recorded on Oct. 21st 2009 by Mike DK3WN.

Enclosed CW beacon signal was recorded on Oct. 21st 2009 by Mike DK3WN.

ITUpSat1
ITUPSAT-1
#35935
(2009-051E)

ITUpSAT1 is the first cubesat / picosat built by Technical University Istambul in Turkey. It was launched via the PSLV (Polar Satellite Launch Vehicle) from Satish Dhawan Space Center in India. Enclosed CW signal from ITUpSat was received on 437.325 MHz by Mike DK3WN.

Sept 23rd 2009

1 kg

On October 15th 2014 at 16:37 UTC Francisco EA7ADI received the CW signal of ITUPSAT-1. Recording kindly provided by Francisco EA7ADI.

Also on May 6th 2015 at 15:45 UTC Francisco EA7ADI received the CW signal of ITUPSAT-1. Recording kindly provided by Francisco EA7ADI.

DMSP F-18
DMSP 5D-3/F18
USA210
#35951
(2009-057A)

DMSP-F18, also known as DMSP 5D-3 F18 or USA 210, is a US Department of Defense weather satellite launched on an Atlas 5 rocket from Vandenberg into a 850km high sun-synchronous orbit. The 1,200 kg satellite, one of several in the Defense Meteorological Satellite Program, will provide terrestrial and space weather data from a near-polar, Sun-synchronous, 830 km altitude orbit. The DMSP satellites monitor the meteorological, oceanographic and solar-terrestrial physics environments. The primary weather sensor on DMSP is the Operational Linescan System, which provides continuous visual and infrared imagery of cloud cover. Additional satellite sensors measure atmospheric vertical profiles of moisture and temperature. DMSP satellites also measure space environmental parameters such as local charged particles and electromagnetic fields.

Oct 18th 2009

1200 kg

The S-Band downlink on 2222.5 MHz of DMSP F-18 was received and enclosed FFT plot was generated in April 2014 by Milen Rangelov.

The S-Band wideband downlink on 2252.5 MHz of DMSP F-18 was received and enclosed FFT plot was generated in April 2014 by Milen Rangelov.

PROBA 2
#36037
(2009-059B)

PROBA-2 (Project for On-Board Autonomy) was launched on Nov 2nd 2009 as a secondary payload together with the SMOS mission into a 700 km sun-synchronous orbit. PROBA-V is operated by ESA (European Space Agency). Its objectives are in-orbit demonstration and evaluation of new hard- and software for spacecraft technologies and for on-board operational autonomy as well as in-orbit trial and demonstration of sun observation and space environment instruments.

Nov 2nd 2009

130 kg

PROBA 2 has an S-band 2 Mbit/s BPSK downlink at 2235 MHz which was received on May 9th 2013 at 19:56 UTC. The spectrum plot was kindly provided by Paul Marsh M0EYT.

The S-Band downlink on 2235 MHz of Proba-2 was received and enclosed FFT plot was generated in May 2014 by Milen Rangelov.

COSMO-Skymed 4
SKYMED 4
#37216
(2010-016A)

COSMO-SkyMed 4 is an Italian Earth-imaging Synthetic Aperture Radar that was launched by a Delta 2 rocket from Vandenberg AFB. COSMO is the abbreviation of COnstellation of small Satellites for the Mediterranean basin Observation. It is a dual use satellite (civilian and military use). The 1.7 ton, 3.6 kW craft is the second of a four-satellite constellation, and carries an X-band (9.6 GHz) radar. The swath width is variable and provides images at a resolution between 1 to 100 meters (in civilian mode).

Nov 6th 2010

1700 kg

The S-Band downlink on 2230 MHz of SKYMED 4 was received and enclosed FFT plot was generated in May 2014 by Milen Rangelov.

PRISMA
#36599
(2010-028B)

PRISMA (Prototype Research Instruments and Space Mission Advancement) was launched on a Dnepr rocket from the Dombarovsky Missile Base, Russia into a sun-synchronous orbit with an altitude of 710 km. PRISMA actually consists of two satellites, nicknamed Mango and Tango, which separated in space and test technologies and rendezvous and formation flying in space. Mango (140 kg main satellite) and Tango (40 kg target satellite) are communicating via an ISL (inter satellite link) operating at 400.550 MHz using FSK modulation.

June 15th 2010

180 kg

Enclosed recording of the signals of the 2 satellites was done on August 16th 2010 at 06:22 UTC by DD1US. Because of the used CW demodulation you can hear the longer pulsed signal from Tango (880ms) and the shorter pulsed signal from Mango (300ms) with a slight frequency offset (pitch).

These recordings were made on August 16th 2010 at 16:45 UTC on 400.550 MHz by DD1US. The first part was recorded using a NFM demodulator (the bandwidth was only 10 kHz and should have been 20 kHz), the second part was recorded in CW.

Finally I received Prisma once more on that same day August 16th 2010 at 20:05 UTC and created enclosed waterfall plot with a Perseus SDR connected to the 10.7 MHz IF output of my receiver. You can see the longer transmission from Tango and the shorter transmission from Mango.

IRS-2B
Cartosat-2B
#36795
(2010-035A)

Cartosat 2B, an Indian Earth observation satellite, was launched from Sriharikota by a Polar Satellite Launch Vehicle. The satellite carries a panchromatic, high spatial resolution, stereoscopic vision camera. The satellite's black and white camera has a resolution of 0.8 m and observea Earth land and ocean surfaces from orbit. The imagery has applications in resource mapping, urban planning, transportation studies, water monitoring, and crop inventories.

Jul 12th 2010

694 kg

The S-Band downlink on 2245.7 MHz of IRS-2B was received and enclosed FFT plot was generated between March and May 2014 by Milen Rangelov.

COSMOS 2467
KOSMOS 2467
Strela-3 #142
#37152
(2010-043A)

Three Russian communication satellites, two Cosmos military satellites and a Gonets civilian communication satellite, were launched on September 8th 2010 from Plesetsk at 03:30 UT by a Rokot launcher. The Gonets satellite is designed to store and relay personal messages.

Sept. 8th 2010

200 kg

COSMOS 2467 was received by Roland Proesch DF3LZ on October 11th 2013 at 23:18 UTC on 261.0350 MHz in USB. Sound file kindly provided by Roland Proesch DF3LZ.

Zhead Pixing 1B
Zheda Pixing 1A-1
#37166
(2010-047B)

The Chinese picosats Zheda Pixing 1B and Zheda Pixing 1C were launched on September 22nd 2010 from Jiuquan on a Long March 2D rocket. They were developed by Zhejiang University for microelectronics studies to provide a testbed in near-Earth space for MEMS devices, such as an accelerometer, micro-gyros and infrared sensors.

Sep. 22nd 2010

3.5 kg

The S-Band downlink on 2285.525 MHz of Pleiades 1 was received and enclosed FFT plot was generated in June 2014 by Milen Rangelov.

Meridian 3
Meridian 13 L
#37212
(2010-058A)

Meridian 3 is a Russian military/government communications satellite launched on a Soyuz 2-1a rocket with a Fregat upper stage from Plesetsk, Russia. Meridian combines the military and civilian tasks of the former Molniya-1 and Molniya-3 satellites, together with the clandestine communications function of the outgoing LEO Parus satellites. Meridian 3 has a highly elliptical orbit (HEO) with an inclination of 63°, also called Molniya orbit. Meridian 3 has multiple transponders:
P-Band downlink: approx. 278 MHz 1 MHz wide (unconfirmed),
UHF-Band downlink: 483.745 MHz 38 kHz wide,
C-Band downlink: approx. 3600 MHz.

Nov. 2nd 2010

> 2000 kg

Paul Marsh received on the C-Band downlink at 3610 MHz a low data rate FSK signal of Meridian 3 on January 2nd 2015 at 16:42 UTC. Audio recording kindly provided by Paul Marsh M0EYT.

STPSat-2
USA 217
#37222
(2010-062A)

STPSat-2 is an experimental spacecraft built by xxx for STP (Space Test Program) of DoD (department of defense). It was launched by a Minotaur-4 rocket into a circular orbit (641kmx652km) with 72 degrees inclination. It carries 3 main experiments: two experiments evaluate sensor compatibility in space environment and are called SPEX (Space Phenomenology Experiment). The third experiment is called ODTML (Ocean Data Telemetry MicroSatLink) and here STPSat-2 acts as a two way data relay between terrestrial (ocean or land) sensors and users
In May 2012 Maik Hermenau received an unidentified signal on 400.180 MHz which in the course of summer he finally identified to be from USA-217. Enclosed recording of STPSat-2 was received, recorded and kindly provided by Maik Hermenau.

Nov 20th 2010

180 kg

RAX
USA 218
#37223
(2010-062B)

RAX (Radio Aurora Explorer) is a joint venture between the University of Michigan and SRI International. Its primary mission objective is to study large plasma formations in the ionosphere, the highest region of our atmosphere. This science spacecraft was developed by over 40 students (undergraduate through graduate), six professional engineers, and one Michigan professor in just two years time. RAX is a standard 3U CubeSat that is 10 cm x 10 cm x 34 cm in size and 2.8 kg in mass.
RAX was launched on November 20
th 2010 at 01:25 UTC from the Kodiak Launch Complex in Kodiak, Alaska aboard a Minotaur IV rocket into a 650km circular orbit.
The radio payload includes a bistatic radar receiver (426-512 MHz), a GPS receiver, a 2.4 GHz 115kbps GMSK transceiver and a UHF 38.4kbps transceiver which is also used for the Amateur Radio telemetry downlink. This downlink at 437.505 MHz uses GMSK modulation to broadcast a 9600bd data downlink signal ever 20 seconds. The callsign used is RAX-1. The downlink transmit power is 750 mW and the polarization used is RHCP.

Nov 20th 2010

2.8 kg

Mike DK3WN was first in receiving and successfully decoding RAX on November 20th 2010 at 04:20 UTC.

Mike DK3WN received and decoded enclosed 9k6 downlink signal from RAX on November 21st 2010 on 437.505 MHz. The 9k6 transmission burst sound like "noise" to our ear but you can recognize them when the "noise" gets lower volume. The pauses between the bursts were shortened in enclosed recording. Recording kindly provided by Mike DK3WN.

O/OREOS
USA 219
#37224
(2010-062C)

Organism/Organic Exposure to Orbital Stresses (O/OREOS) is a nanosatellite based on a 3U cubesat structure.
The goal of the O/OREOS mission is to be able to conduct low-cost astrobiology science experiments on autonomous nanosatellites in space.
O/OREOS was launched together with RAX on November 20
th 2010 at 01:25 UTC from Kodiak Launch Complex in Kodiak, Alaska aboard a Minotaur IV rocket.
It features a 1200bd AX.25 AFSK downlink at 437.505 MHz which transmits every 5 seconds using the callsign KF6JBP.

Nov 20th 2010

5.5 kg

Mike DK3WN received the 1k2 AFSK downlink signal on November 20th 2010 at 04:20 UTC. He was first providing decoded data to the O/OREOS team in USA. Recording kindly provided by Mike DK3WN.

Also Henk PA3GUO was able to receive and decode the 1200bd downlink signal at 437.505 MHz on November 20th at 06:00 UTC. Enclosed recording was kindly provided by Henk PA3GUO.

On May 7th 2015 at 18:21 UTC Francisco EA7ADI received the AFSK signal of O/OREOS. Recording kindly provided by Francisco EA7ADI.

On May 14th 2015 at 17:18 UTC Francisco EA7ADI received the AFSK signal of O/OREOS again. Recording kindly provided by Francisco EA7ADI.

FASTSAT
FASTSAT-HSV 01
USA 220
#37225
(2010-062D)

Another satellite launched on the same rocket on November 20th 2010 was FastSat (Fast Affordable Scientific and Technology Satellite) which is a small technological low cost satellite built by the "von Braun" Center for Space Innovation in Huntsville Alabama USA. Among the 6 payloads was NanoSail-D2, a technology experiment to demonstrate FASTSAT's ability to eject a nano-satellite into space.

Nov 20th 2010

140 kg

NanoSail-D2
#37225
(2010-062D)

NanoSail-D2 is a triple CubeSat and was supposed to be ejected from FastSat about 1 week after its launch. However it failed to leave FastSat on December 6th 2010 but was spontaneously ejected on January 19th 2011 and subsequently successfully deployed its 10 m2 sail 3 days later. 

After its deployment NaanoSail-D2 transmitted every 10 seconds a 1200bd AX.25 beacon in FM/AFSK on 437.270 MHz using the callsign KE7EGC. This beacon allowed to monitor the battery voltage as well as the successful sail deployment 72 hours after ejection as can be seenn in enclosed analysis of Mike DK3WN.

Nov 20th 2010

4 kg

Enclosed signal of NanoSail-D2 was received and decoded on January 20th 2011 at 18:30 UTC by Mike DK3WN. Thanks Mike for the recording.

USA224
NRO-L49
#37348
(2011-002A)

USA224, also called NRO Launch 49 (NRO L-49), is an American reconnaissance satellite. It is the 15th keyhole KH-11 optical imaging satellite and has the nickname Betty. It was the first launch of a Delta-IV-Heavy rocket from Vandenberg Air Force Base in California. USA-224 has a low Earth orbit with an apogee of 1023km, a perigee of 251km and an inclination of 97.9 degrees.

Jan 20th 2011

approx. 13000 kg

Enclosed signal from USA-224 was received on January 23rd 2011 at 23:28 UTC on 2242.518 MHz. You can see the strong PSK sidebands 1.024 MHz left and right from the carrier. The recording of the carrier and the spectrum plot were kindly provided by Paul Marsh M0EYT.

RESOURCESAT-2
#37387
(2011-015A)

RESOURCESAT-2 was the primary payload of a launch by India on a PSLV rocket. Together with RESOURCESAT-2 two other satellites were launched: YOUTHSAT and X-SAT.
The downlink frequency of RESOURCESAT-2 is the same as RESOURCESAT-1 and thus 2250.000 MHz.

April 20th 2011

1200kg

Enclosed spectrum plot was kindly provided by Greg Roberts.

YOUTHSAT
#37388
(2011-015B) 

YOUTHSAT was constructed by students in India and Russia and launched by India on PSLV-C16 (polar satellite launch vehicle).
The main objective of the mission is to provide a platform to aerospace students across the world for space experiments (including studies of solar radiation) and associated data-processing for the benefit of future generations and humanity as a whole.
The suggested downlink frequencies are 180.01 MHz, 400.02 MHz and 2254.340 MHz.

April 20th 2011

92 kg

The S-band downlink signal has been confirmed by Greg Roberts who kindly provided the spectrum plot enclosed.

X-SAT
#37389
(2011-015C) 

X-SAT is Singapores first national satellite, operating mainly on X-band but also carries an S-band transmitter. It was launched by India on a PSLV rocket. It's primary mission is Earth observation and satellite based data acquisition/distribution/messaging using mobile terminals.

I am searching for sound files. Please send them to

April 20th 2011

105 kg

Meridian 4
Meridian 14 L
#37398
(2011-018A)

Meridian 4 is a Russian military/government communications satellite launched on a Soyuz 2-1a rocket with a Fregat upper stage from Plesetsk, Russia. Meridian combines the military and civilian tasks of the former Molniya-1 and Molniya-3 satellites, together with the clandestine communications function of the outgoing LEO Parus satellites. Meridian 4has a highly elliptical orbit (HEO) with an inclination of 63°, also called Molniya orbit. Meridian 4 has multiple transponders:
P-Band downlink: 278.4 - 279.4 MHz,
UHF-Band downlink: 483.750 MHz,
C-Band downlink: approx. 3600 MHz.

May 4th 2011

> 2000 kg

Paul Marsh received on the C-Band downlink at 3610 MHz a low data rate FSK signal of Meridian 4 on December 31st 2014 at 11:42 UTC. Audio recording kindly provided by Paul Marsh M0EYT.

RASAD-1
#37675
(2011-025A) 

Rasad 1 is the second Iranian nano-satellite. It was built by the Malek Ashtar University in Tehran. The expected operational life time is 2 months. It was launched on a Safir rocket in a low earth orbit with a height of 236x299 km and an inclination of 56 degrees. It is an experimental earth observation satellite with a resolution of about 150 meters. Rasad-1 transmits a burst signal on 465 MHz at about 30 kHz bandwidth. There is a second frequency allocation for Rasad-1 at 401 MHz but it is unclear whether this is only used for uplink or also for downlink.

June 15th 2011

15 kg

Enclosed signal from RASAD-1 was received on June 19th 2011 at 10:30 UTC on 465.000 MHz. The recording of the signal and the spectrum plot were kindly provided by Paul Marsh M0EYT from www.uhf-satcom.com.

In the following days, the downlink signal changed to a carrier which was modulated with a 1kHz tone. The tone is occasionally interrupted by some short data bursts. You can see in the spectrum and waterfall plot, that the carrier is slightly and the 2nd harmonic of the 1 kHz tone is significantly suppressed. Up to the 7th harmonic of the tone can be seen in the spectrum. The downlink signal is sometimes switched on/off, which can be also seen also in enclosed pass which was observed on June 26th 2011 starting at 06:30 UTC. The complete pass is shown in the spectrum plot and the two audio recordings represent the two phases of the interrupted transmission. Besides the signal from RASAD-1 you can see a terrestrial wideband signal (in green and blue color). A 10.7 MHz IF frequency corresponds to a 465.000 MHz RF frequency.

Spektr-R
Spektr R
RadioAstron
#37755
(2011-037A) 

The Spektr-R (formerly RadioAstron) project is an international collaborative mission to launch a free flying satellite carrying a 10-meter radio telescope in high apogee orbit around the Earth. This Russian radio astronomy satellite was launched from Baikonur on July 18th 2011 at 02:31 UT C by a Zenit 3F rocket. The aim of the mission is to use the space telescope to conduct interferometer observations in conjunction with the global ground radio telescope network in order to obtain images, coordinates, motions and evolution of angular structure of different radio emitting objects in the Universe with the extraordinary high angular resolution. Spektr-R features a 8.4 GHz downlink phase coherent downlink.

 July 18th 2011

3660 kg

Enclosed audio file and spectrum plot of Spektr-R was received on January 6th 2014 at 22:20 UTC on 8400.010 MHz by Paul Marsh.

 

 TACSAT-4
INP
#37818
(2011-052A)  

 TACSAT 4 also known as INP (Tactical Microsatellite Innovative Naval Prototype) is a US Navy 4th generation communications satellite featuring 10 UHF communications channels and a 3.8m wide deployable dish antenna. Power is generated by 2 deployable solar cell arrays. TACSAT-4 was launched into a highly elliptical orbit from Kodiak by a Minotaur-4 rocket. The geo-synchronous orbit features an apogee of 12050 km.

 Sept. 27th 2011

 450 kg

The S-band downlink of TACSAT-4 was received on 2206.1044 MHz on October 2st 2011 from 04:03 until 06:06 UTC by Loren Moline WA7SKT. Enclosed spectrum plot was generated at 04:17 UTC and kindly provided by Loren.

Enclosed audio recording and associated spectrum plot of TACSAT-4 was received on December 28th 2011 at 20:40 UTC on 2206.120 MHz by Paul Marsh.

JUGNU
JNU
#37839
(2011-058B)

This nanosatellite based on a triple cubesat design was built by a team of 12 professors and 40 students from IIT-K (Indian Institute of Technology Kanpur) in India. It was launched by PSLV C-18 from Satish Space Centre (SDSC), Shriharikota, India into a LEO orbit with 20 degrees inclination. The primary payload was Mega-Tropique, a French/Indian meteorological satellite.
JNU carries a micro-imaging system, a GPS receiver and a MEMS based intertial measurement unit. The downlink frequency of the CW telemetry beacon with an output power of 50 mW is 437.275 MHz.

Oct. 12th 2011

3.5 kg

Enclosed CW telemetry signal of JUGNU was received and recorded by Noguchi-san JA5BLZ on October 14th 2011 at 03:29 UTC. Kindly provided by Tetsu-san JA0CAW.

SRMSAT
SRMVU
#37841
(2011-058D)

SRMSat is a 10.4 kg Cubesat built by SRM University in Chennai, India. It was launched by PSLV C-18 from Satish Space Centre (SDSC), Shriharikota, India into a LEO orbit. Because of its low inclination of only 20 degrees in conjunction with its low altitude SRMSat will never be received in Central Europe or at higher latitudes.
The CW-Beacon frequency is 437.425 MHz, its output power is 10 mW. Enclosed file explains the telemetry format.

Oct. 12th 2011

10 kg

Enclosed recording of SRMSat was received by JA0CAW on October 12th 2011 at 20:28 UTC. Recording kindly provided by Tetsu-san JA0CAW.

Enclosed recording of SRMSat was received by JA0CAW on October 12th 2011 at 22:16 UTC. Recording kindly provided by Tetsu-san JA0CAW.

NPP
Suomi NPP
#37849
(2011-061A)

NPP (NPOESS Preparatory Project) was launched on October 28th 2011 on a Boeing Delta-2 rocket from Vandenberg Air Force Base in California. The satellite was placed into a sun-synchronous orbit 824 km above the Earth. As part of the National Polar-Orbiting Operational Environmental Satellite System (NPOESS) it studies global change, including atmospheric temperature and humidity sounding, sea-surface temperature, land and ocean biological productivity, cloud and aerosol properties and global ozone levels. After initial check out in orbit, NASA renamed the spacecraft on January 24th 2012 to Suomi National Polar-orbiting Partnership, or Suomi NPP in honor of the late Verner E. Suomi, a meteorologist at the University of Wisconsin who is recognized widely as "the father of satellite meteorology."
NPP transmits in X-Band and in S-Band. The downlink frequencies are:
- 8212.5 MHz with 300 MBit/s (to Gnd statiom in Norway)
- 7812 MHz with 30 Mbit/s (DBS real time high data rate)
- 2247.5 MHz with up to 512 kbit/s (TLM)
- 2067.270833 MHz with 2 & 128 kbit/s (CMD).

I am searching for sound files. Please send them to

Oct 28th 2011

1976 kg

RAX-2
#37853
(2011-061D)

RAX (Radio Aurora Explorer) is a joint venture between the University of Michigan and SRI International. Its primary mission objective is to study large plasma formations in the ionosphere, the highest region of our atmosphere. This second RAX satellite was launched on October 28th 2011 as part of the ELaNa3 (Educational Launch of Nanosatellites) Mission on a Boeing Delta-2 rocket from Vandenberg Air Force Base in California. The primary payload was NPOESS.
The radio payload includes a bistatic radar receiver (426-512 MHz), a GPS receiver, a 2.4 GHz 115kbps GMSK transceiver and a UHF 38.4kbps transceiver which is also used for the Amateur Radio telemetry downlink. This downlink at 437.345 MHz uses GMSK modulation to broadcast a 9600bd data downlink signal ever 20 seconds. The callsign used is RAX-1 as the team did forget to change it during the launch preparation. The downlink transmit power is 750 mW and the polarization used is RHCP.

Oct 28th 2011

2.8 kg

Henk PA3GUO was one of the first to receive RAX-2 telemetry on Oct 28th 2011.

On November 7th 2011 at 18:34 UTC Mike Rupprecht received the 9k6 FSK downlink of RAX-2 . Enclosed recording kindly provided by Mike DK3WN.

M-Cubed
M
3
#37855
(2011-061F)

M-Cubed is a satellite built by the University of Michigan's Students Space Systems Fabrication Lab (S3FL) and part of the ELaNa3 (Educational Launch of Nanosatellites) Mission. It is a Multipurpose Minisat based on 1U CubeSat structure. The objective of MCubed is to obtain a mid resolution image to date of Earth with at least 60% land mass and a maximum of 20% cloud coverage from a single cubesat platform.
M-Cubed is transmitting on 437.485 MHz 9600bd FSK AX.25 packets. Its EIRP < 1 Watt. The uplink frequency is at 145.950 MHz.

Oct 28th 2011

 1 kg

Receiving and decoding M-Cubed turns out to be quite difficult. Mike DK3WN was able to receive and record enclosed 9600bd signal from M-Cubed on December 27th 2011 at 05:20 UTC. Kindly provided by Mike DK3WN.

Explorer-1 Prime-2
E1P-U2
HRBE
#37855
(2011-061F)

Explorer 1 Prime (E1P) is a 1U Cubesat-class satellite developed by the Space Science and Engineering Laboratory (SSEL) at Montana State University. Its mission is to detect the Van Allen radiation belts in honor of the 50th anniversary of Explorer-1, America's first satellite that first discovered the cloud of highly energetic electrons trapped in the Earth's magnetic field. E1P-U2 (Explorer 1 Prime 2) is a re-flight of the satellite that failed to be orbited on March 4th 2011. It was launched on a Boeing Delta-2 rocket from Vandenberg Air Force Base in California. After successful launch it was renamed for William H. Hiscock to HRBE (Hiscock Radiation Belt Explorer). It is transmitting its beacon every 15 seconds in non-coherent 1200bd FSK modulation on 437.505 MHz. The transmit power is 0.85 Watts EIRP. The protocol in use is KISS, the callsign used is K7MSU-02.

Oct 28th 2011

1 kg

Jan PE0SAT was one of the first to receive E1P-U2's downlink signal. He reported that the signal was very strong. Enclosed recording in FM mode was made on on Oct 28th 2011 at 12:40 UTC and kindly provided by Jan PE0SAT.

Enclosed recording in LSB mode, which is the proper way to receive this modulation scheme, was made during the next pass on Oct 28th 2011 at 14:17 UTC and kindly provided by Jan PE0SAT.

On December 27th 2011 at 13:00 UTC Mike Rupprecht received the 1200bd AFSK downlink of E1P-U2 in LSB. Enclosed recording kindly provided by Mike DK3WN.

Tianxun-1
Tian Xun 1
TX-1
#37874
(2011-066A)

TX 1(Tian Xun 1) was launched from Taiyuan by a Long March 4B rocket. The microsatellite weighs 35 kg and was designed by Nanjing University of Aeronautics and Astronautics for a mission of technological verification tests. It is equipped with a 2.5 kg CCD camera, developed by the students of the Suzhou University, which can provide a maximum resolution of 30 m.

Noc 9th 2011

35 kg

The S-Band TT&C downlink on 2276.45 MHz of Tianxun-1 was received and enclosed FFT plot was generated in June 2014 by Milen Rangelov.

Pleiades 1
#38012
(2011-076F)

Pleiades 1 is a French Earth observation satellite launched from Kourou by a Soyuz rocket into a LEO orbit. Pleiades 1 is a multi-role observation craft. It collects each day 450 high-resolution (features as small as 0.5 m) optical images for military and civilian users, including tri-stereo imagery and mosaics. It was designed by the French Space Agency (CNES) for a five-year mission.

Dec 17th 2011

970 kg

The S-Band downlink on 2269.2 MHz of Pleiades 1 was received and enclosed FFT plot was generated in May 2014 by Milen Rangelov.

Picture

Object name
#NORAD

Description

Launch
Date

Weight

If you have further sound tracks from space objects please let me know. I will be happy to post them here on my homepage. Many thanks in advance.

Vy 55 & 73 de Matthias DD1US               


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