LB Obs 2017 Jul 21 pm

From: Leo Barhorst via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 22 Jul 2017 01:53:09 +0200
At dusk there were still some thin clouds in the west. Later also
thin and thicker clouds in other parts of the sky. Could image
several satellites in clearings in between clouds. Just after 01 UT
the sky clouded over.

31702 07 027B was F,  P ~ 13 sec. in 2nd pass.
25758 99 029C was F,  P ~ 9 sec.

A few satellites have higher residuals; see below.

31702 07 027B   4172 G 20170721210355589 17 25 1909871+280996 37 S
31702 07 027B   4172 G 20170721210405596 17 25 1916538+251320 37 S
40381 15 004A   4172 G 20170721210727582 17 25 1912328+240587 37 S
40381 15 004A   4172 G 20170721210734601 17 25 1914433+285690 37 S
36104 09 066A   4172 G 20170721211335609 17 25 1939898+264591 37 S
36104 09 066A   4172 G 20170721211344612 17 25 1943422+315806 37 S
41325 16 006C   4172 G 20170721211445610 17 25 2126148+303760 37 S
41325 16 006C   4172 G 20170721211455613 17 25 2129404+310348 37 S
41325 16 006C   4172 G 20170721211505614 17 25 2132603+312746 37 S
41325 16 006C   4172 G 20170721211515615 17 25 2135899+314994 37 S
41325 16 006C   4172 G 20170721211525617 17 25 2138953+321236 37 S
41325 16 006C   4172 G 20170721211535602 17 25 2142097+323374 37 S
13874 83 008H   4172 G 20170721211550598 17 25 2128717+322762 37 S
13874 83 008H   4172 G 20170721211556573 17 25 2128469+294157 37 S
00815 64 031C   4172 G 20170721212930618 17 25 1421924+071576 37 S
00815 64 031C   4172 G 20170721212939582 17 25 1423990+051961 37 S
28097 03 054C   4172 G 20170721213701172 17 25 1525015+120179 37 S
28097 03 054C   4172 G 20170721213711171 17 25 1528714+140914 37 S
42073 17 015B   4172 G 20170721214331181 17 25 1416834+144499 37 S
42073 17 015B   4172 G 20170721214341177 17 25 1401898+181217 37 S
39232 13 043A   4172 G 20170721215001181 17 25 1416502+125700 37 S
39232 13 043A   4172 G 20170721215011177 17 25 1409956+144512 37 S
39232 13 043A   4172 G 20170721215021184 17 25 1403148+163297 37 S
28647 05 016B   4172 G 20170721215951161 17 25 1959653+000352 37 S
28647 05 016B   4172 G 20170721220000170 17 25 2016965+020394 37 S
26906 01 040B   4172 G 20170721220716149 17 25 1759251+114288 37 S
26906 01 040B   4172 G 20170721220721167 17 25 1803207+125018 37 S
26906 01 040B   4172 G 20170721220731165 17 25 1811255+150761 37 S
25274 98 019C   4172 G 20170721221001181 17 25 1814421+122517 37 S
25274 98 019C   4172 G 20170721221009187 17 25 1814703+152037 37 S
42807 17 039E   4172 G 20170721221006161 17 25 1807574+113831 37 S
42807 17 039E   4172 G 20170721221011179 17 25 1807637+132639 37 S
26550 00 057F   4172 G 20170721221112173 17 25 1804630+114803 37 S
26550 00 057F   4172 G 20170721221121184 17 25 1815415+144335 37 S
40538 15 015A   4172 G 20170721222712556 17 25 1400886+122872 37 S
40538 15 015A   4172 G 20170721222722553 17 25 1349457+145093 37 S
39462 13 072A   4172 G 20170721223732572 17 25 1333541+551551 37 S
39462 13 072A   4172 G 20170721223742571 17 25 1329099+525002 37 S
39462 13 072A   4172 G 20170721223752566 17 25 1325230+503041 37 S
31702 07 027B   4172 G 20170721224525526 17 25 1417167+160004 37 S
31702 07 027B   4172 G 20170721224532538 17 25 1423005+152108 37 S
31702 07 027B   4172 G 20170721224542533 17 25 1431257+142253 37 F
31702 07 027B   4172 G 20170721224552541 17 25 1439557+132106 37 F
25758 99 029C   4172 G 20170721224612534 17 25 1439066+141811 37 F
25758 99 029C   4172 G 20170721224622540 17 25 1429881+162086 37 F
25758 99 029C   4172 G 20170721224628552 17 25 1424209+173381 37 F
16612 86 018B   4172 G 20170721224642533 17 25 1442647+124111 37 S
16612 86 018B   4172 G 20170721224652541 17 25 1435555+152063 37 S
19574 88 093B   4172 G 20170721230322564 17 25 1651253+123511 37 S
19574 88 093B   4172 G 20170721230332562 17 25 1700509+091169 37 S
09415 76 091A   4172 G 20170721230357583 17 25 1701733+113792 37 S
09415 76 091A   4172 G 20170721230407542 17 25 1703080+084698 37 S

Residuals wrt the latest classfd.tle file before the session start.
Norad Cospar         Cross-track     delta T      TLE age  range
13874 83 008H   |  0.02329 deg    1.893 sec   3.9 day, 742.3 km
42073 17 015B   |  0.01177 deg    1.587 sec   3.0 day, 876.8 km
40538 15 015A   | -0.02876 deg   -1.120 sec   3.0 day, 1194.9 km

The residuals of the other classified satellites are low.
2017 total obs: 8743 + 52 = 8795
************************************************************
***************************
Setup: WATEC 120N, 50 mm F1:1.8, NTP, Celestron Nexstar
Observations made and reduced with Sattools
Cospar 4172 ALMERE 52.3713 N 5.2580 E –3 ASL
Best regards     Leo Barhorst
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Received on Fri Jul 21 2017 - 18:53:54 UTC

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