[FPSPACE] More signals from Progress M1-3

[Sven Grahn]

Radio transmissions again detected from Progress M1-3 on 7 August 2000 in
Sollentuna, Sweden:

2303.20-2309.00 UT: CW very strong    922.75 MHz
2303.55-2307.20 UT: FM-TM very strong 166.0 MHz

This observation agrees very well with the element set just published by
NASA OIG within the the last hour:

Progress M1-3
1 26461U 00044A   00220.88436178  .00022375  11466-4  58784-4 0    84
2 26461  51.5783 236.1897 0018816 269.1138  90.6859 15.96465969   186

This elset gives: h=271.4-296.5 km, Nodal period 90.137 minutes.

It took OIG more than 24 hours after launch to come up with a valid element
set, but for Progress flights the simple rules of thumb are that:

* Rough reception times in Northern Europe the first day are computed by
adding multiples of 90 minutes to the launch time.

* Reception times the second day are identical to the first day - if all
maneuevers are successful.

These rules were true this time also!

Sven Grahn


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Mr Sven Grahn | Kettering Group
Rattviksvagen 44, S-192 71 Sollentuna, Sweden
Tel: +46 8 7541904, svengrahn@wineasy.se
http://www.users.wineasy.se/svengrahn/
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