Unids from last night and NROL129 search

From: Leo Barhorst via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 30 Jul 2020 16:50:28 +0200
Last night I imaged 2 UNIDs.

99999 20 711A   0796 E 20200729233728826 17 25 0106563+225191 37 S
99999 20 711A   0796 E 20200729233745951 17 25 0112458+230619 37 S
99999 20 711A   0796 E 20200729233754914 17 25 0115797+231322 37 S
99999 20 711A   0796 E 20200729233803194 17 25 0118949+231909 37 S
99999 20 711A   0796 E 20200729233812589 17 25 0122473+232655 37 S
99999 20 711A   0796 E 20200729233820111 17 25 0126706+233277 37 S

Satfit gives with classfd.tle::
16908   -1.008  -11.097    0.964 20711A    0.579
Not likely as the predicted path was above the FOV and 16908 has typical
flashing patterns.

With catalog.tle:
87521    3.114    3.658    0.925 20711A    1.729


99999 20 712A   0796 E 20200730011705111 17 25 2331213+263708 37 R P = 0.48
sec over 18 periods
99999 20 712A   0796 E 20200730011707914 17 25 2336282+260290 37 R
99999 20 712A   0796 E 20200730011711585 17 25 2342952+251589 37 R
99999 20 712A   0796 E 20200730011716673 17 25 2351530+241146 37 R

Satfit gives with classfd.tle 4 candidates:
79395  114.959   -9.663    0.533 20712A    3.074
28646 -323.083    9.452    0.555 20712A    2.149
20692  -38.782   75.879    0.996 20712A    7.110
20691  -54.288   75.748    0.996 20712A   13.149

The last 3 do not fit the flashing behavior. They are all S. 28646 was also
imaged last night.
79395 is Teds latest NROL129 search TLE.

With catalog.tle:
81014 -223.417    4.983    0.261 20712A    1.622
A lot of Starlinks also had low residuals, but then the regular flashing is
strange.

Using Teds latest NROL129 search TLE I had 3 passes last night.
Watched from several minutes before to several minutes after the predicted
time.
In the 1st and 3rd pass nothing was seen in the images.
The 3 pass was only a short track in the corner of the FOV.
The 2nd pass didnot show a trail in the images, but using Sattools to
gather all the pixelvalues
of the 10 sec track in 1 image to 1 point a very faint dot was visible.

79395 20 711A   0796 E 20200729222735155 17 25 0126631+354579 37 S
79395 20 711A   0796 E 20200729222743161 17 25 0131587+342093 37 S
79395 20 711A   0796 E 20200729222754157 17 25 0137562+323613 37 S

What made me suspicious it was a NROL129 object was the fact it was on time
and track by Teds TLE.

Will try again coming night as the weather looks promissing.

Regards
Leo
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Received on Thu Jul 30 2020 - 09:53:25 UTC

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