 Fuji-OSCAR 29
(JAS 2)
Spacecraft Summary
| OSCAR Designation: |
Fuji-OSCAR 29 |
|
Oscar Number: |
FO-29 |
|
| International Designator: |
1996-046B |
|
Norad Number: |
24278 |
|
| Common Name: |
JAS 2 |
|
Satellite Type: |
Satellite |
|
| Launch Date: |
17 August, 1996 |
|
Launch Location: |
Tanegashima Space Center |
|
| Launch Vehicle: |
H-II No. 4 |
|
Apogee: |
1323.00 |
|
| Perigee: |
800.00 |
|
Inclination: |
98.54 |
|
| Period: |
106.44 |
|
Dimensions: |
44 x 47 polyhedron |
|
| Weight: |
50.000 Kg |
|
| | | | Organization: | Japan Amateur Radio League |
|
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Frequency Information
| |
| Mode V/U (J) Linear Transponder (Inverting): Non-Operational |
| Uplink: |
145.9000 - 146.0000 MHz SSB/CW |
| Downlink |
435.8000 - 435.9000 MHz SSB/CW |
| |
| Mode V/U (J) PacSat BBS: Non-Operational |
| Uplink: |
145.8000 MHz BPSK 1200 BPS |
| Uplink: |
145.8700 MHz BPSK 1200 BPS |
| Uplink: |
145.9100 MHz BPSK 1200 BPS |
| Downlink |
435.9100 MHz FSK 9600 BPS |
| |
| Mode U Beacon: Non-Operational |
| Downlink |
435.7950 MHz CW |
| |
| Mode U Digitalker (Rarely Used): Unknown |
| Downlink |
435.9100 MHz FM |
| Callsign(s)
|
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Current Keplerian Elements
FO-29
1 24278U 96046B 11325.42309139 .00000044 00000-0 81781-4 0 7143
2 24278 98.5687 88.5511 0350209 209.7777 148.3018 13.52970646753726
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Weekly Satellite Report
October 2011: FO-29 is reported to be currently inoperative due to eclipse length and battery condition. Return to service is unknown.
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Please send reception reports to lab2 'at' jarl.or.jp.
Please use the subject line: 'FO-29 reception report'.
Mineo, JE9PEL, has an FO-29 satellite telemetry analysis program that will automatically analyze all digital telemetry from the satellite (such as current, voltage and temperature). FO29CWTE is available at:
http://www.ne.jp/asahi/hamradio/je9pel/
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Detailed Description
FO-29 carries a 100KHz wide SSB/CW linear transponder that operates in mode V/U. It additionally carries a 1k2/9k6 digital BBS that is no longer operational and a Digitalker beacon that transmits a digital voice on FM.
FO-29 includes an attitude control system that consists consists of a sun-sensor, geomagnetism sensor, magnetorquer and data processor. It also features an advanced solar cell experiment consisting of gallium-arsenide solar cells 2cm x 2cm and 2cm x 1cm cells. Orbit- Polar orbit, details have not been fixed yet.
- Perigee between 800 and 900 km above the ground and we are asking NASDA to take apogee as high as possible.
Launch- Launched by H-II rocket No.4, from Tanegashima Space Center of NASDA.
Mission subsystem (communication subsystem)JAS-2 operates in mode J, that is, 145MHz band for uplink and 435MHz band for downlink.- Analog transponder (linear transponder) for phone and CW. Total transmitting power is 1W, of which beacon is 100 mW.
- Digital transponder (store-and-forward packet processor) bit rate 1200 or 9600 bps, alternative operation for 1200 bps, uplink in Manchester coded FM / downlink in bi-phase PSK for 9600 bps, FSK after G3RUH, both uplink and downlink. Total transmitting power is 1 W.
- Digi-talker transmits information by voice, audible with a hand-held transceiver. Source information data in PCM is sent to JAS-2 from the control station.
- Data processor, consisting of the CPU V50, static RAMs of 2MB, deals with BBS, digi-talker, telemetry and command data processing and self-operating jobs.
Bus subsystem- Size and structure
44 cm wide and 47cm high, sphere-like polyhedron consisting of 26 panels,weighs 50 kg. - Power supply
Gallium-Arsenide solar cells of 2cm x 2cm and 2cm x 1cm pieces, and 11 cells of Nickel-Cadmium storage battery of 6 AH. - Attitude control
This consists of sun-sensor, geomagnetism sensor, electric magnet or magnetorquer and data processor.
The axis of symmetry of JAS-2 becomes the spin axis, and operating attitude will be in so-called "wheel mode", that is the spin axis being perpendicular to the orbit plane.
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Reference Documents:
- Mineo Wakita's, JE9PEL, FO-29 status 7 Aug 2007 http://www.ne.jp/asahi/hamradio/je9pel/fo29sta3.htm
- Steve Ford, WB8IMY, "JAS-2 In Orbit!,"QST, Oct. 1996, p. 94.
- Fujio Yamashita, JS1UKR and Hideo Ono, JA1BU, "JAS-2 Comes to Life as FO-29,"The AMSAT Journal, Vol. 19, No. 5, Sep/Aug 1996, p. 1.
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