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From: alb@alice.UUCP (Adam L. Buchsbaum)
Newsgroups: net.columbia
Subject: Re: Challenger's ATO
Message-ID: <4094@alice.UUCP>
Date: Fri, 2-Aug-85 08:09:11 EDT
Article-I.D.: alice.4094
Posted: Fri Aug  2 08:09:11 1985
Date-Received: Sat, 3-Aug-85 05:30:51 EDT
References: <3402@decwrl.UUCP>
Organization: Bell Labs, Murray Hill
Lines: 6

ATO is a fourth abort option.  TAL (transatlantic abort) would
have been used, except that Challenger was already 33 seconds
past the furthest point from which it could do this.  AOA would
have been used had Challenger not been able to achieve a stable
orbit (note that before the OMS burn, the orbit was 129 by 3 (!!)
miles).