As Alan mentioned in his April 26 DECAY WATCH SpaceCom has issued a decay prediction for 1959-009A (#00022) Explorer 7 prepared on 20 February 2088 (!) : The decay date: 27 February 2088 01:22 UTC +/- 02 minutes (27.2°S, 0.1°E) You can see this stuff with frequently updated ELSET's also today on the TIP message board via OIG. The old satellite is in a stable orbit - 519.29 / 827.458 km - with i = 50.3°. The lifetime estimates in the early sixties gave Explorer 7 about 50 years. With a special long range prediction program here is a calculation of a more precise decay date: April 10, 2011 +/- 06 months I have assume a "normal" behavior of the solar activity over the next decade. This time frame looks quite more realistic then SpaceCom's black magic. Harro Harro.Zimmer@t-online.de Berlin, Germany ----------------------------------------------------------------- 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
This archive was generated by hypermail 2b29 : Thu Apr 27 2000 - 12:30:43 PDT