I was camping out hoping to see Skylab come down when I saw a red arrow move across the sky.

July 11, 1979 was the night that Skylab came down.  Me, my older brother and some neighbor kids spent the night outside hoping to see Skylab come down.
 We were camped out of the patio on the East side of the house and didn’t have any kind of view of the Western sky at all.  (We were kids I was 12, not real smart).
 Anyway in the middle of the night I was looking straight up when I saw directly above but miles up in the sky a red arrow.  It was crisp, no streaks, exhaust or noise.  It was moving directly East and was only visible for 4 seconds.
 The other kids of course were screwing around and missed it.  It was gone before any of them could get a look and of course they didn’t believe me.
 I assumed at the time that what I saw was Skylab but now I’m pretty sure it was something else, I just don’t know what.  I’m really hoping others saw the same thing and know what it was.
 If you know what this was you can just e-mail me, I really don't expect a phone call or for your organization to spend a lot of time on this.
 Thank you.