At 12:11 18/12/99 , Ron Lee wrote: >Both the Terra spacecraft and a Centaur should reach orbit. Can anyone >provide an estimate of the Centaur brightness? Its probably a different variant of the Centaur Ron, ( Titan IVb/Centaur rather than Atlas 2AS), but 96 72B had a molczan standard mag about 4.0 when first seen. Ted later changed this to 4.8 . I mention this because orbit plane similar geometry, although this orbit is circular while of course 96 72B's wasnt ( 180by 1000Km to start with). Tony Beresford ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html