Re: Can you identify this one?

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Igor wrote:

>Trying to observe USA 81 near the handle of Ursa Major,
>at 17:13 UTC Mar 11 I've noticed a satellite running from N.
>It was approx. mag 2-3 near Epsilon UMa (I may be wrong
>with the star - it appeared quite suddenly), then much fainter.
>The object went into shadow at 17:17:20 UTC in SE.
>My coordinates were 55.635N 37.474E, elev approx 250 m.
>
>Can anybody identify the satellite? Please don't blame me
>if the answer is really simple.

Cosmos 2278 Rk fits your criteria as follows:  (for your location)

At 17:14:30 is at Az = 47, Alt = 45, or within 2 deg of Epsilon UMa.

Heads then to SE and goes into shadow at exactly 17:17:20 at Az = 102, Alt = 26.

May have gotten suddenly fainter due to tumbling?  (Not sure of the period
of this one.)

Hope this helps.

Doyle


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