SB SPACE @ ARL $ARLS011 ARLS011 STS-83 postponed ZCZC AS11 QST de W1AW Space Bulletin 011 ARLS011 From ARRL Headquarters Newington, CT April 2, 1997 To all radio amateurs SB SPACE ARL ARLS011 ARLS011 STS-83 postponed NASA has postponed the launch of the space shuttle Columbia for 24 hours. Mission STS-83, which will carry the Shuttle Amateur Radio EXperiment, SAREX, was due to be launched Thursday, April 3, 1997, at 1901 UTC. Following a review on Wednesday, April 2, NASA managers determined that a water coolant line in the orbiter's payload bay will require additional insulation to prevent it from freezing during the orbiter's 16 days in space. Launch has been rescheduled for April 4 at 1901 UTC. Three hams will be aboard the shuttle Columbia. They are James D. Halsell, KC5RNI, mission commander, Janice E. Voss, KC5BTK, payload commander, and Donald A. Thomas, KC5FVF, mission specialist. STS-83 is scheduled to last 16 days. The mission will carry SAREX configuration C: voice and packet. The mission's primary payload is the microgravity science laboratory. Eighteen schools, including institutions in the People's Republic of China and on Okinawa, have been scheduled for SAREX contacts during the mission. The SAREX Working Group has designated the following frequencies during the STS-83 mission: FM voice downlink (worldwide): 145.55 MHz FM voice uplink: 144.91, 144.93, 144.95, 144.97, and 144.99 MHz FM voice uplink (Europe only): 144.70, 144.75, and 144.80 MHz If packet is available, the FM packet downlink will be 145.55 MHz; the uplink will be 144.49 MHz. The FM packet call sign will be W5RRR-1. Reports and QSLs go to ARRL-EAD, STS-83 QSL, 225 Main St, Newington, CT 06111-1494. Include the following information: STS-83, date, time in UTC, frequency and mode (FM, voice or packet). You must also include an sase using a large, business-size envelope if you wish to receive a card. NNNN /EX