ad7i@houxp.UUCP (06/17/83)
qst de ad7i holmdel, new jersey, u.s.a. hr arrl bulletin nr 48 from arrl headquarters newington ct june 16, 1983 to all radio amateurs bt amsat phase 3b was successfully launched at 1159 utc on june 16. its general beacon will transmit on about 145.812 mhz on cw or 170 hz shift 50 baud fsk. the spacecraft achieved an unfavorable attitude, and the control motors will not be fired tomorrow. the beacon can only be heard from 0000 to 0020 utc and will be turned off the remainder of the day to conserve power. users are requested to retain telemetry data for use on amsat nets. minimum sa readings should be 20. the approximate format during early orbits follows. hi hi amsat oscar 10 at xx.xx.xx utc orbit xxx ma xxx/256 ubat xx.x volts tbatt xx.x c iarray x.x a sa xx dg spin xx rpm satellite status first motor firing and orbit change expected during orbit 3 transponder is off until about orbit 10 listen daily to this bulletin for latest operating news at the hours and plus 30 amsat oscar 10 hi hi time will be in hours, minutes and seconds as calculated by the onboard computer. orbit number will change at perigee. ma is mean anomaly with 0 being perigee and 128 being apogee. ubat is primary battery voltage. tbatt is battery temperature in degrees celsius. iarray is solar array current in amperes. sa is sun angle reference to spacecraft z axis. spin is spin rate of the spacecraft about its spin axis in revolutions per minute. listen for fiveiminutes on the hour and half hour. this format may vary slightlzlm stations hearing the first telemetry signals from the new amsat oscar 10 satellite were zl1aox, jh4pbq, ja5xpn, ja7ie, jr4brs, jr1swb and ja8dxb. this occurred between 1444 and 1445 utc 16 june 83 ar