Re: Obs in Moscow, April 10

Alan Pickup (alan@wingar.demon.co.uk)
Fri, 10 Apr 1998 23:17:06 +0100

VideoCosmos <icosmos@dol.ru> writes
>...
>An Iridium-type flare was seen in NNE sky at 19:09:30 UTC.
>No prediction from IridFlar with current iridium.tle file from T.S.Kelso
>ftp site.

Hello Igor,

This was probably Iridium 51, as per the following Iridflar prediction
using the "iridiums.tle" file available via my WWW page (and with 
"Local Time" = UTC):

Latitude:  55.63500  Longitude:   37.47400  Altitude:  250.0 m
Time Zone: UTC  +0.0 h

                      Iridium Coordinates  Range   Sat   Solar     Flare      Peak  Std    Maximum Flare
Ir   Date   Local Time Azm El   RA   Decl  (km)  N Ill Azm  Elev M Angle  Mag  Mag  Mag Latitude Longitude Bearing
------------------------------------------------------------------------------------------------------------------
51 98- 4-10 19:09:02.0 033 23 19h33  49.3 1615.2 D Lit 322 -19.2 R  2.72  2.3 -6.7  0.8  56.6445   37.4587
51 98- 4-10 19:09:19.5 037 25 19h08  48.7 1554.7 D Lit 322 -19.2 R  0.04 -6.9 -6.9 -8.3  55.6352   37.4956   1.4 E
51 98- 4-10 19:09:37.0 042 26 18h42  47.7 1501.3 D Lit 322 -19.3 R  3.00  2.4 -7.0  1.1  54.6446   37.5023

Elset used:
Iridium 51       3.0  0.0  0.0  6.0 d            780 x 775 km
1 25262U 98018A   98100.21756643 -.00022434  00000-0 -80357-2 0   291
2 25262  86.4010   6.9013 0003189  92.0294 268.1213 14.34272388  2258

Alan
-- 
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