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Fox-1A, AO-85 or AMSAT OSCAR 85[3] is an American amateur radio satellite. It is a 1U Cubesat, was built by the AMSAT-NA and carries a single-channel transponder for FM radio. The satellite has one rod antenna each for the 70 centimetres (28 in) and 2 metres (6 ft 7 in) bands. To enable a satellite launch under NASA's Educational Launch of Nanosatellites (ELaNa) program, the satellite continues to carry a Penn State University student experiment (MEMS gyroscope).

Fox-1A

Mission type	Communications
Operator	AMSAT[1]
COSPAR ID	2015-058D[1]
SATCAT no.	40967[1]
Spacecraft properties
Bus	CubeSat (1U)
Manufacturer	Radio Amateur Satellite Corporation (AMSAT)
Launch mass	1.3 kilograms (2.9 lb)
Dimensions	10 by 10 by 10 centimetres (3.9 in × 3.9 in × 3.9 in)
Start of mission
Launch date	8 October 2015, 12:49 UTC
Rocket	Atlas V 401 AV-058
Launch site	Vandenberg SLC-3E
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Semi-major axis	7,020 kilometres (4,360 mi)
Perigee altitude	504.3 kilometres (313.4 mi)[2]
Apogee altitude	795.7 kilometres (494.4 mi)[2]
Inclination	64.8°[2]
Period	97.6 minutes[2]
RAAN	178.6841°[2]
Argument of perigee	312.3881°[2]
Mean motion	14.757262270[2]
Epoch	25 June 2018[2]
Transponders
Band	FM
Frequency	Uplink: 435.172 MHz Downlink: 145.980 MHz
TWTA power	400mW

According to AMSAT-NA, Fox-1A will replace OSCAR 51. Upon successful launch, the satellite was assigned OSCAR number 85.

Launch and mission

The satellite was launched on 8 October 2015 with an Atlas V rocket together with the main payload Intruder 11A (also known as NOSS-3 7A, USA 264 and NROL 55) and 12 other Cubesat satellites (SNaP-3 ALICE, SNaP-3 EDDIE, SNaP-3 JIMI, LMRSTSat, SINOD-D 1, SINOD-D 3, AeroCube 5C, OCSD A, ARC 1, BisonSat, PropCube 1 and PropCube 3) from Vandenberg Air Force Base, California, United States. After just a few hours, the transponder was put into operation, initial connections were made between amateur radio stations and telemetry was received.

Status

Since December 2018, AO-85 has suffered from dangerously low battery voltage while in eclipse. As a result, AMSAT have disabled all on board transmitters in an effort to extend the usable life of the satellite. Transmitters are periodically turned back on to collect telemetry data.[4]

See also

• OSCAR

References

External links

• www.amsat.org (PDF)

На других языках

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[de] Fox-1A

Fox-1A[2], AMSAT-OSCAR 85 oder AO-85 ist ein US-amerikanischer Amateurfunksatellit. Er ist ein 1U-Cubesat, wurde von der AMSAT-NA gebaut und trägt einen einkanaligen Transponder für den Mode U/V in FM-Sprechfunk. Der Satellit verfügt über je eine Stabantenne für das 70-cm- und das 2-m-Band. Um einen Satellitenstart im Rahmen des ELaNa-Programms (Educational Launch of Nanosatellites) der NASA zu ermöglichen, trägt der Satellit weiterhin ein studentisches Experiment (MEMS-Gyroskop) der Pennsylvania State University.

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- [en] Fox-1A

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