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

From: C. Bassa via Seesat-l <>
Date: Tue, 10 Aug 2021 22:58:53 +0200
Hi Andreas,

On Tue, Aug 10, 2021 at 9:48 PM Andreas Hornig
<> wrote:
> Sure! I would try my algo with them, too :).

You can find 600 individual frames at
These are written out as python numpy arrays for 100 frames at a time.
The _t.npy files contain the time stamps in unix format, while the
_z.npy files contain the video frames (shape of 100x1172x1552 at
8bits). I've also included png files showing the astrometrically
calibrated image of each 100 frame set with satellite predictions

> Cool, then we can counter check with what my tool chain will produce in the very end :).

Yes, I'd be very interested in that comparison.

> Do you know how precise they are? How are they synched?

They are from the PC clock which is NTP synchronized. Should be better
than 0.1s.

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Received on Tue Aug 10 2021 - 16:00:09 UTC

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