Einstein Observatory resumes operation
Article first published online: 3 JUN 2011
©1981. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 62, Issue 6, page 50, 10 February 1981
How to Cite
1981), Einstein Observatory resumes operation, Eos Trans. AGU, 62(6), 50–50, doi:10.1029/EO062i006p00050-04.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
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The orbiting Einstein Observatory has returned to full-time scientific operation after an onboard gyro that failed last August inexplicably came back to life, according to controllers at the Goddard Space Flight Center, Greenbelt, Md. First indications of maneuvering problems in the X ray observing satellite were noted last August, limiting the observatory's scientific investigations. During the following 6 weeks, ground controllers modified radio command instructions to the spacecraft, allowing them to bypass the troubled gyro and continue operations with the two remaining gyros. Since mid-October, controllers had attempted repeatedly to reactivate the faulty gyro by sending literally thousands of radio commands to the ailing subsystem, with no effect.