Fox-1D

Fox-1D, AO-92 or AMSAT OSCAR 92[3] is an American amateur radio satellite. Fox-1D is a 1U CubeSat developed and built by AMSAT-NA. Fox-1D carries a single-channel transponder for mode U/V in FM. Fox-1D has an L-band converter (the AMSAT L-band downshifter experiment), which allows the FM transponder to be switched on an uplink in the 23 centimetres (9.1 in) band.

Fox-1D
Mission typeCommunications
OperatorAMSAT[1]
COSPAR ID2018-004AC[1]
SATCAT no.43137[1]
Spacecraft properties
ManufacturerUniversity of Iowa, Virginia Tech, Pennsylvania State-Erie, Radio Amateur Satellite Corporation
Launch mass1.3 kilograms (2.9 lb)
Start of mission
Launch date12 January 2018, 03:59 UTC
RocketPSLV-XL C-40
Launch siteSatish FLP
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.0011184[2]
Perigee altitude490 kilometres (300 mi)[2]
Apogee altitude505 kilometres (314 mi)[2]
Inclination97.5331°[2]
RAAN238.3110°[2]
Argument of perigee77.5681°[2]
Mean motion282.6806°[2]
Epoch24 June 2018[2]
Revolution no.2484[2]
 

To enable it to launch under NASA's ELaNa (Educational Launch of Nanosatellites) program, the satellite continues to carry the following scientific and technical payloads:

  • High Energy Radiation CubeSat (HERCI);
  • Camera Experiment;
  • MEMS GYRO Experiment.

The satellite has a single whip antenna for the 70 cm and 23 cm bands (uplink), as well as an antenna for the 2m band (downlink).

Mission

The satellite was launched on January 12, 2018 at 03:59 UTC with a PSLV XL rocket, along with the main payloads Cartosat-2F, NovaSAR-S, and 31 other small satellites from the Satish Dhawan Space Center, India. At 05:17 UTC, the antennas were deployed over the North Pole and the satellite began to work. At 05:28 UTC the first telemetry was received and commissioning occurred over approximately two weeks. Currently, Fox-1D is rarely operational, as the AMSAT Engineering team believes that there are serious battery capacity issues. The transponder is occasionally turned on, but will usually default into "Safe Mode" at the next eclipse.

Fox-1D Transponder Mode Beacon.
Frequencies
145.880 MHz downlinkFM, data transmission DUV 200 bps and FSK 9600 bit/s, 400 - 800 mW
435.350 MHz uplinkFM CTCSS 67.0 Hz
1,267,350 MHz uplinkFM CTCSS 67.0 Hz

See also

References
  1. "AO-92". NSSDCA. NASA GSFC. Retrieved 2018-06-24.
  2. "AO-92". Heavens-Above GmbH. Chris Peat. Retrieved 2018-06-24.
  3. "FOX-1D (AO-92)". Ciprian Sufitchi. Retrieved 2018-06-24.
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