The HST team investigating the Advanced Camera for Surveys (ACS) anomaly presented findings and recommendations to the HST project on June 30 that included a plan to bring the instrument out of suspend mode later this week.
Program technicians prepare the Wide Field and Planetary Camera 2 (WFPC 2) for shipment back to NASA’s Goddard Space Flight Center in Greenbelt, Md.
On June 22, at 12:21 PM EDT, the Cosmic Origins Spectrograph (COS) aboard Hubble temporarily suspended operations when an optical mechanism movement failed to reach its intended destination. The HST team quickly identified the root cause which required a minor update to the COS flight software.
Following a meeting with the SI C&DH Anomaly Review Board at NASA’s Goddard Space Flight Center on June 19, the HST Program approved a plan to bring the science instruments out of safe hold.
The newly installed Science Instrument Command and Data Handler (SI C&DH) experienced an anomaly on June 15. Engineers performed a successful power cycle succeeded on the SI C&DH and each science instrument was commanded into its safe mode by HST's flight controllers.
The fifth and final partnership between a space shuttle crew and the Hubble Space Telescope is in its final hours. With the completion of today’s spacewalk, Hubble is now ready to continue its exploration of the cosmos with a full complement of science instruments.
Very early on Sunday morning, word came from functional test analysis that yesterday’s repair activities on the Advanced Camera for Surveys had achieved the prime objective of the effort—restoration of the instrument’s Wide Field Channel (WFC).
The addition of a new science instrument and an unprecedented on-orbit repair of a severely under-performing camera on Hubble highlighted Saturday activities aboard Space Shuttle Atlantis.
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