Re: Optical 16 Jan 2015 - full

From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 18 Jan 2015 16:11:04 +0200
Hi Cees

Many thanks for your email. Rather surprised that Noss 1 (D) so bright - 
must have
been a good orientation.

The second one -- Ill check the time and that I copied down correctly so 
will come
back to you on it. I think the exposures were 4 seconds each so maybe I 
measured
the wrong end of the trail in 2 cases -- the object was variable but 
that would not
give 8 second errors. Will be nice if we got KH9-18 after 7.6 years!!!

Anyway let me go and re-measure it.

Many thanks
Greg

On 2015-01-18 03:59 PM, C. Bassa wrote:
> Hi Greg,
>
> Your first unknown correlates well with NOSS 1 (D) [08836/76038D],
> last seen 63 days ago. This is based on taking all objects in
> classfd.tle and fitting them to your observations allowing changes
> only to the mean anomaly and RA of the ascending node.
>
> The second unknown seems to have a problem with the timing of either
> the first two being 8s late or the last two being 8s early. Adjusting
> the time of the first two and using the method I mentioned above, the
> best fitting object is KH 9-18 Elint [14139/83060C]. The elements in
> classfd.tle are 7.6 years old! No other object we know of provides a
> good enough match for reasonable changes to the mean anomaly and
> ascending node, so I am pretty sure that you've seen 83-060C.
>
> Regards,
>      Cees
>

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Received on Sun Jan 18 2015 - 08:11:40 UTC

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