Optical 16 Oct 2020

From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 17 Oct 2020 15:46:37 +0200
Site 0435 Pinelands (Cape Town,South Africa)
18.5101 degrees east  33.9368 degrees south, altitude 25.5 metres

ZWO ASI 174MM cmos camera with telephoto lens set at about 80mm focal length
and aperture f/2.8.  Field of view 7.74 by 4.86 degrees, 2x binning and
image scale 28.8 arcsec/pixel.

Timing provided by Dimension 4 and Network Time Synchronization (NTP) and
hopefully good to better than 0.1 seconds.

FITS images reduced in ALLSKY PLATESOLVER  to provide plate solution and
used to determine coordinates from satellite trails produced during
exposures. This is quicker than using NOVA.ASTROMETRY.NET and SAO DS9
for the astrometry

ASICAP used to produce FITS files.  It would appear that ASICAP has an error
in reporting time of exposure as time of START of exposure when it is in
fact time of END of exposure. In all cases exposure time was 4.00 seconds.

For CLASSIFIED.TLE
---------------------
38109 12 014A   0435 G 20201016175137419 17 15 0127040-015729 85 S
38109 12 014A   0435 G 20201016175141419 17 15 0126370-022644 85 S
39475 13 072P   0435 G 20201016180840720 17 15 0017260-102431 85 R
39475 13 072P   0435 G 20201016180844720 17 15 0016070-114340 85 R
45860 20 041A   0435 G 20201016180013101 17 15 0024030+103619 85 S+045 10
45860 20 041A   0435 G 20201016180009101 17 15 0028430+095626 85 S+045 10

Strays:
-----------
44289 19 029BG  0435 G 20201016175824185 17 15 0022020+111409 85 S+070 10
44289 19 029BG  0435 G 20201016175828185 17 15 0020390+102632 85 S+070 10
37168 10 048A   0435 G 20201016174549494 17 15 0133230-063225 85 S
37168 10 048A   0435 G 20201016174553494 17 15 0134550-073152 85 S

Notes:
-------
I hope to replace the temporary altazimuth mount, which has to be set
manually, with a Celestron SLT mount under computer control.

Cheers
Greg
_______________________________________________
Seesat-l mailing list
http://mailman.satobs.org/mailman/listinfo/seesat-l
Received on Sat Oct 17 2020 - 08:47:55 UTC

This archive was generated by hypermail 2.4.0 : Sat Oct 17 2020 - 13:47:56 UTC