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Mission Milestones

View the Bar chart of Chandra mission status.

Date
Milestone


August 19, 1999
Chandra official first light image recorded by the Advanced CCD Imaging Spectrometer (ACIS).


Cassopiea A, Chandra's 1st Light

Chandra's first focused image was of Cassopiea A, the 320 year old remnant of a massive star that exploded. The dramatic, detailed picture revealed a central point of light that may be the long sought neutron star or black hole that was produced in the explosion that created Cas A.





August 12, 1999
The Sunshade door opens allowing X-ray to enter the telescope for the first time.
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August 7, 1999
Chandra reaches its planned operating orbit.
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July 23, 1999
Shuttle Columbia launched and the Chandra X-ray Observatory successfully deployed.
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June 27, 1999
Chandra transferred into Columbia's payload bay.
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June 16, 1999
Chandra and IUS-27 booster successfully complete Payload Readiness Review.
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June 8, 1999
Launch planned for no earlier than July 20. End-to-end test on Chandra/IUS successful
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June 1, 1999
Inertial Upper Stage-27 delivered to the VPF.
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April 27, 1999
NASA decided to postpone mating Chandra with its IUS booster.
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March 17, 1999
A full state-of-health test successfully completed at KSC.
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February 4, 1999
TRW* ships NASA's Chandra X-ray Observatory to KSC
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February 2, 1999
NASA decides to proceed with the shipment of Chandra TRW* to KSC, on Thurs, Feb. 4, 1999
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January 20, 1999
NASA delays shipment of the Chandra X-ray Observatory from TRW* to KSC
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January 14, 1999
TRW* unveils the completed Chandra X-ray Observatory
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December 21, 1998
The Chandra X-ray Observatory to be shipped to NASA's Kennedy Space Center, on or before Jan. 28
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October 13, 1998
NASA delays shipment of AXAF from TRW* to Kennedy Space Center
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July 7, 1998
AXAF successfully completes its thermal vacuum test.
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March 12, 1998
Assembly of AXAF is completed at TRW*!
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February 13, 1998
NASA plans a 3 December launch of AXAF.
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November 1997
TRW* experiences delays in assembly and testing of AXAF.
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June - October 1997
The Mirror Assembly is shipped to TRW*.
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March - May 1997
The testing of the Scientific Instruments is completed.
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December 1996 - March 1997
AXAF support team at Marshall Space Flight Center completes a series of rigorous tests of the X-ray Mirror Assembly.
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February - December 1996
The coated mirrors are transported to Eastman Kodak Company in Rochester, New York, where they are assembled.
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July 1995 - February 1996
The coating of the mirrors with iridium is successfully completed.
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December 1991 - July 1995
The grinding and polishing of the grazing-incidence mirrors are completed.
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*TRW is now part of the Northrop Grumann of Redondo Beach, CA


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