I was lucky enough to see Halley's Comet in 1986 by naked eye, would you believe looking through a toilet roll which blocked out street lights and moon in the small rural town of Robertstown in South Australia's north east pastoral district and it was a great sight. I have also been lucky enough to see during the day (getting close to dusk I believe) a shuttle's illuminated flight path travelling from south to north and I was looking to west of Adelaide and not sure what year that was. It could have been first shuttle flight back after Challenger but I can't remember what year. Anyway I would be able to work out which shuttle I saw just by the tracking information or is that a bit hard to be specific?
That's really cool! I was just a baby when the comet came by. I hope to live long enough to see it return.
But to answer your question, there wasn't a shuttle flying at the time. There was one planned (STS-61-E) but due to the Challenger Disaster, the shuttles was grounded.
"Back row: Samuel T. Durrance, Robert A. Parker, Jeffrey A. Hoffman, Ronald A. Parise
Front row: Richard N. Richards, Jon A. McBride, David C. Leestma"
"Columbia was to carry the ASTRO-1 observatory, which would be used to make astronomical observations including observations of Halley's Comet. ASTRO-1 consisted of three ultraviolet telescopes mounted on two Spacelab pallets, controlled by the Instrument Pointing System (IPS) which was first tested on STS-51-F.
After the Challenger disaster, the flight was remanifested as STS-35 and several crew members were replaced. Both Richards and Leestma were reassigned to STS-28 while McBride left NASA in 1989. Vance D. Brand replaced McBride as the commander while Guy S. Gardner and John M. Lounge replaced Richards and Leestma, respectively."
It was planned to launch on March 6, 1986.