SB SPACE @ ARL $ARLS021 ARLS021 Mir update ZCZC AS21 QST de W1AW Space Bulletin 021 ARLS021 From ARRL Headquarters Newington, CT June 25, 1997 To all radio amateurs SB SPACE ARL ARLS021 ARLS021 Mir update Ham-astronaut and former Mir crew member Jerry Linenger, KC5HBR, told reporters today (June 25) that the crew aboard the Russian space station has had to ''power everything down that's possible,'' including some life-support systems, in the wake of a collision with an unmanned cargo rocket this morning. The crash, which damaged a solar array and punctured one module, resulted in a loss of as much as 50 per cent of the Mir's electrical power. Speaking at a NASA press briefing, Linenger characterized the Mir as ''a darkened ship'' and said the crew would operate ''in a slowdown mode'' until the effects of the mishap are corrected. The accident caused the space station to depressurize. The situation prompted quick action by the crew to seal off the affected Spektr module. The accident has cut off US ham-astronaut Mike Foale, KB5UAC, from his sleeping quarters and personal items in the Spektr module. NASA Shuttle-Mir Program Manager Frank Culbertson said there was ''no indication of health and safety problems'' among the crew members, but that some of the experiments in the Spektr module may have been ruined. Culbertson said the collision with the Progress supply rocket happened as the crew was ''testing a new rendezvous technique'' to be used if automatic docking systems failed. In addition to Foale, the Mir is staffed by Russian cosmonauts Vasily Tsibliyev and Alexander Lazutkin. Foale has been aboard Mir since mid-May, when he replaced Linenger. Linenger told the press conference today that it was too early to comment on what the latest problem aboard Mir might mean for the future of the 11-year-old space station, which already has outlasted its anticipated life span by six years. Linenger said fire and decompression are the two most dangerous things aboard a spacecraft ''and we've had both of those.'' During Linenger's four months aboard Mir early this year, the crew experienced a fire, a near collision with another cargo rocket, and coolant system leaks. Culbertson said repairs likely would require a space walk by the Mir crew. He also did not rule out the possible termination of the mission. As part of its response to the emergency, the crew prepared the Soyuz escape vehicle for possible evacuation. Culbertson said the crew would have to orient the station for optimal exposure to the sun to make the best possible use of the solar panels that remain on-line. For news updates, see http://www.hq.nasa.gov/office/pao/NewsRoom/today.html. NNNN /EX