Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!rpi!bu.edu!att!pacbell.com!ucsd!nosc!crash!pro-canaveral.cts.com!gandalf From: gandalf@pro-canaveral.cts.com (Ken Hollis) Newsgroups: sci.space.shuttle Subject: Re : Astro-1... Message-ID: <6123@crash.cts.com> Date: 6 Dec 90 13:36:41 GMT Sender: root@crash.cts.com Lines: 19 Greetings and Salutations: From: gsh7w@astsun.astro.Virginia.EDU (Greg Hennessy) >There is a problem with the Imaging Pointing System (IPS) on the >shuttle. The IPS is not stable, and has large drifts. This means that .... I will preface this with "I have heard...", i.e., not something I know.... I have heard that this software problem (Lack of lock, large drifts) was a previous bug on the IPS, and was not fixed / fixed correctly. Any comments? Ken Hollis ProLine: gandalf@pro-canaveral Internet: gandalf@pro-canaveral.cts.com UUCP: crash!pro-canaveral!gandalf