![]() The radar lab engineers bypassed the protection circuit and turned on the instrument at about 4:20 pm Saturday. ![]() ![]() The problem was traced to an oversensitive protection circuit, a type of circuit breaker. Engineers were not immediately able to explain the problem, so they turned off the power amplifier for about three hours. The problem was in the low voltage circuit internal to the power amplifier. Meanwhile, the Measurement of Air Pollution from Satellite (MAPS) instrument took data on the carbon monoxide content and distribution in the atmosphere since shortly after launch.ĭuring the initial activation of the X-SAR, controllers reported they were unable to fully power up the amplifier that provides power to the radar. STS-59 ground controllers finished activating the Spaceborne Imaging Radar-C (SIR-C) and began processing its first images of the Earth, while engineers working with the X-Band Synthetic Aperture Radar (X-SAR) worked their way through some initial activation problems. Soon after, the six astronauts began activating the sensitive radar equipment in the payload bay that would be operated around the clock during the next ten days.īy 8 pm, the Space Radar Laboratory-1 experiments of NASA's Mission to Planet Earth were all activated and began their study of the earth's ecosystem. ![]() Mission highlights 9 April STS-59 launches from Kennedy Space Center, 9 April 1994.Įndeavour began its sixth mission on the morning of 9 April 1994 with an on-time launch at 7:05 am Eastern time. The launch was chronicled by the 1994 Discovery Channel special about the Space Shuttle program. STS-59 was a Space Shuttle program mission that took place in 1994. ![]()
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