Re: MIR position at eclipse

Bjoern Gimle (b_gimle@algonet.se)
Tue, 31 Aug 1999 07:05:56 +0200

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Previous message: Russ Johnson: "Re: Help, please"
Maybe in reply to: Dale Ireland: "MIR position at eclipse"

>Please help me clear up confusion about MIR's position during the total
>solar eclipse of August 11.
>There is an image of the eclipse taken by the French astronaut from MIR
>at
>http://www.cnes.fr/actualites/info24.html
>the caption says it was taken at 12:13 Paris time with the shadow over
>Cornwall England (10:13 GMT). However if I check with my tracking
>program I see MIR went over Europe at about 11:13 UT. I am using recent
>elements and working back, was there a big orbit change since Aug 11?


10:13 GMT = 10:13 UT = 12:13 Paris Summer (Daylight) Time is correct.

Track16 prediction from elset AFTER eclipse shows no large change compared
to pre-eclipse predictions:

Track16 SGP4/SDP4     Topocentric Location:

YearMoDa  H  M  S  Long(+E)  Lat(+N)   Hgt

16609 86017A   Mir Complex       Elset Age:
19990811 10:10:00  -16.5156  35.8817   344
19990811 10:11:00  -12.9297  38.3723   345
19990811 10:12:00   -9.0798  40.7278   345
19990811 10:13:00   -4.9413  42.9265   346
19990811 10:14:00   -0.4938  44.9443   346
19990811 10:15:00    4.2758  46.7550   347
19990811 10:16:00    9.3688  48.3306   347
19990811 10:17:00   14.7712  49.6431   348
19990811 10:18:00   20.4495  50.6657   348
19990811 10:19:00   26.3489  51.3750   349
19990811 10:20:00   32.3949  51.7533   349

Mir Complex     32.7  4.2  0.0  1.6 v  407       349 x 342 km
1 16609U 86017A   99223.47860351  .00018943  00000-0  12945-3 0  7541
2 16609  51.6599  60.4655 0005170  38.6336 321.5061 15.74833569770112

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Maybe in reply to: Dale Ireland: "MIR position at eclipse"