 Fuji-OSCAR-20
 Satellite Summary
Name: Fuji-OSCAR-20 aka JAS-1b and Fuji-2
Callsign: 8J1JBS
NASA Catalog Number:20480
Launched: February 7, 1990
Launch vehicle: Japanese H-I
Launch location: Tanegashima Space Center of NASDA, Tanegashima Island, Japan
Weight: 50 kg
Orbit: Polar LEO (Low Earth Orbit)
Inclination: 99 degrees
Size: 44 cm wide x 47 cm high
Period: 112 minutes
Features:
- BBS Message System (digital store-and-forward)
- Analog communications transponder
Beacon
- 435.795 MHz - CW (primary) or PSK digital (secondary)
- 435.910 MHz - PSK digital
Digital Transponder - Mode JD
- Uplinks: AFSK (FM) 1200 bps, AX.25, Manchester
- 145.850 MHz
- 145.870 MHz
- 145.890 MHz
- 145.910 MHz
- Downlink: BPSK 1200 bps
Analog Transponder - Mode JA -- Note: FO-20 is permanently in the analog mode.
- Uplink: 145.900 - 146.000 MHz
- Downlink: 435.795 - 435.900 MHz (inverted)
Description
For an update on the status of FO-20, see the JARL Present Status of Fuji-OSCAR 20 web page.
For a description of FO-20, read John Magliacane's, KD2BD, Spotlight On: Fuji-2/OSCAR-20 originally published in The AMSAT Journal.
For more information about FO-20 and 29 visit the Japan Amateur Radio League ( English version) and the National Space Development Agency of Japan ( English version) web pages.
See also Satellite Summary - Fuji-OSCAR 29.
References
- JAS-1 Handbook, JARL, August 1985. English translation available from Project OSCAR, PO Box 1136, Los Altos, CA 94023.
- V. Riportella, "Introducing Japanese Amateur Satellite number One (JAS-1),"QST, Nov 1986, pp 66-67.
- "Introduction of JAS-1b," by JARL,QEX, Sep 1989, pp 8-11.
- Joe Kasser, "The Fuji-OSCAR-20 Spacecraft,"The AMSAT Journal, Vol. 13, No. 3, July 1990, p. 7
- JR1NVU, "The Telemetry Formats of JAS-1b/Fuji-OSCAR 20,"The AMSAT Journal, Vol. 13, No. 4, Sep 1990, p. 20.
- John A. Magliacane, "Spotlight On: Fuji-2/OSCAR-20" The AMSAT Journal, Vol. 15 No. 5, Nov/Dec 1992, p. 17.
- Martin Davidoff, The Satellite Experimenter's Handbook, 2nd edition, The American Radio Relay League, Newington, CT., 1990.
- Mike Crisler, PACSAT Beginner's Guide, AMSAT
Last update May 31, 2003 - N7HPR
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