I had the privilege of viewing Columbia and LDEF in formation in the pre-dawn sky on Friday, 12 JAN 90. I was in Ozark, Alabama. At 0557 the pair passed overhead. They were close; I believe Columbia had approached to within 20 nm of the LDEF at the time. Both craft were easy to see. Columbia was much brighter, trailing and slightly below LDEF. Kevin M. McGrath