>It flared up to Mag 0 to -1 for about 15 seconds before fading over a >period of 5-10 seconds to Mag. +3 to +4 as I followed in binoculars. >Az=1450 and Alt= 450 approx. That should read Az=145 Deg, Alt=45 Deg. The degrees sign got replaced by a zero when the message was remailed. Is Landsat 4 still an operational satellite? If so it should keep the same orientation along it's track for it's imaging system to work correctly & so the observed brightenings may be predictable. Equally, Landsat 5 may exhibit the same phenomena, since I think it's configuration is similar to Landsat 4. Anyway I'm going to keep an eye on these two Landsats to see if they show any more bright passes. Best wishes & clear skies, Jason P Hatton INSERM U311 ETS Strasbourg 67065 Strasbourg Cedex France 48.538N / 7.731 E 146m