Msg #8364 Tipo:B Stat:$ Para:SAREX @AMSAT De :W1AW Data : 29-Jun 11:04 Assunto : STS-57 SAREX Flight Imminent Path: !CS1AAS!CT1CUC!CT1REP!EA4PO!EA1PH!EA1J!EA4BS!4X1RU!ON7RC!ON7RC!ON1KGX! !ON1KEZ!FF6KIF!FF6PTT!F6ABJ!FF6KDS!FF6RAE!F6DEG!FF6KSU!FF1LEQ!FE6CNB! !VK3BBS!KE7KD!K4RY!KB4EUX!WA4BRO!N4NIA!N7IJI!N2BQF!N4GAA!W1AW! From: W1AW@W1AW To: SAREX@AMSAT SB SAREX @ AMSAT $STS-57.002 STS-57 SAREX Flight Imminent The Space Shuttle Endeavour is on launch pad 39 being prepared for the flight of STS-57 which is scheduled for June 20, 1993 at 13:38 UTC. One of the primary objectives of the STS-57 mission is to retrieve the European Retrievable Carrier (Eureca) satellite which was deployed by Atlantis on the STS-46 mission in August 1992. In addition, the six member crew will carry out numerous middeck experiments which are stored in Spacehab, a new commercially developed middeck augmentation module. This flight will carry the Shuttle Amateur Radio Experiment (SAREX), a multifaceted amateur radio payload whose primary goal is education. Shuttle Pilot Brian Duffy, N5WQW, who operated SAREX on STS-45 in March of last year, will be the control operator on this flight. SAREX operations will also be performed by Mission Specialist Janice Voss, who has passed her amateur radio exam but has not received her license. STS-57 will fly SAREX in configuration C, 2-meter voice and packet. This flight represents the tenth flight of the Shuttle Amateur Radio EXperiment (SAREX) since its inception and the third flight this year. Earth-bound amateur radio operators planning to make a general QSO with STS-57 need to be especially prepared for this flight. The numerous orbit burns required to retrieve Eureca will necessitate frequent Keplerian Element updates. In addition, the crew expects to be quite busy with the significant number of payload activities planned for this mission. Thus, packet radio robot contacts are expected to comprise the bulk of the general QSO contacts for this mission. Details on frequencies, callsigns, Keplerian Elements, and QSL cards are shown in the information bulletin below. STS-57 Shuttle Amateur Radio Experiment (SAREX) Information Sheet Mission: STS-57 Space Shuttle Endeavour Eureca Recovery and Spacehab Mission Launch: June 20, 1993, 13:38 UTC Orbit: 28.5 degree inclination, 250 nautical miles Landing: June 28, 1993, 11:58 UTC (Could be extended one day) Amateur Radio Operators: Brian Duffy, N5WQW and Janice Voss, Callsign TBD Modes: FM Voice Prime callsign N5WQW Packet Radio Callsign W5RRR-1 Frequencies: All operations in split mode. Do not transmit on the downlink frequency. Listen before transmitting. Voice Freqs: Downlink: 145.55 MHz (Worldwide) Uplinks: 144.91, 144.93, 144.95, 144.97, 144.99 MHz (Except Europe) 144.70, 144.75, 144.80 MHz (Europe only) Note: the crew will not favor any specific uplink frequency, so your ability to work the crew will be the "luck of the draw" Packet Freqs: Downlink: 145.55 MHz Uplink: 144.49 MHz QSL Info: Send your QSL or Listeners Report to: STS-57 QSL C/O Miami County ARC P.O. Box 214 Troy, OH 45373 Include a self addressed stamped envelope. No-US stations should include the appropriate number of IRCs with your QSL or a 0.50 U.S. stamp on the envelope. Report should include callsign, whether worked/heard, date, UTC time, mode, frequency, and QSO number for packet connects. Info: Goddard Amateur Radio Club, WA3NAN, Greenbelt, Maryland, SAREX Bulletins and Shuttle Retransmissions 3860 KHz, 7185 KHz, 14,295 KHz, 21,395 KHz, 28,650 KHz and 147.45 MHz (FM) Johnson Space Center ARC, W5RRR, Houston, Texas SAREX Bulletins 7225 KHz, 14,280 KHz, 21,395 KHz, 28,650 KHz, (SSB) and 146.64 MHz (FM) ARRL Amateur Radio Station, W1AW, Newington, CT SAREX News Bulletins 3990, 7290, 14,290, 18,160, 21,390, and 28,590 KHz and 147.555 MHz (FM) Also, bulletins available on internet, via AMSAT ANS, Compuserve, and your local PBBS. School Group Participation: 8 school groups will participate in SAREX with pre-scheduled direct contacts. These include 5 in the U.S., and one in Mexico, South Africa and Australia. Prelaunch Keplerian Elements: Prelaunch elements will not be provided for STS-57. The significant number orbit burns required to rendezvous and retrieve the Eureca satellite will cause the prelaunch set to be good only for only the first four orbits. Once STS-57 is in orbit, a definitive set of orbital elements will be provided. Also, since several, significant burns will be performed during this mission, frequent orbital element updates will be required. Some of these orbital burns can cause the predicted orbits to be up to 20 minutes in error for your location. The SAREX working group expects approximately two element sets to be released per day. Please stay tuned to WA3NAN, W1AW, internet, and your local PBBS for the latest Keplerian element sets. NNNN [Fim Msg #8364 ]