Re: Space-X Transporter-2 chain pass over UK on fourth orbit

From: Andreas Hornig via Seesat-l <>
Date: Mon, 26 Jul 2021 23:49:25 +0200
Hi Nick and everyone,

On Sun, Jul 25, 2021 at 8:56 PM Nick James <> wrote:

> Hi Andreas,
> That looks really good considering the very low SNR of some of the
> objects in the chain.

yeah, but also the Transporter 2 is a good showcase, because they have
satellites of all sizes :).
I just added numbering of the satellite detections to my code.
I also tried to allow the predictor to set the search window several
frames, but that is unstable due to the low SNR. I think I will do
connecting several of the confirmed satellite IDs in post processing. I
think that is the fastest way. I will have less measurements, but for sure
more reliable ones.

> The Sony A7s shooting video with a fast lens is a
> very capable system and it would be great to have some software which
> could automatically detect moving objects and then do
> astrometry/photometry on them.

working on it.
the astrometry side I have working.
the satellite detection is what I try here now.
when this will work, I will combine it and I will test them together.

> I'm happy to let you have more examples of video shot with that system
> if you want more material. At my latitude (51.5N) at this time of year
> pretty much any field will have multiple objects moving through every
> minute.

I will come back to your offer :). That is almost the latitude of my home
village (52.5N) and at least there the light pollution is okay, because it
is rural in Lower-Saxony :).

Best regards,

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Received on Mon Jul 26 2021 - 16:51:20 UTC

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