CB Obs April 10/11, 2018; Fixed video

From: C. Bassa via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 11 Apr 2018 18:14:00 +0200
Pretty good conditions throughout the night. Three unknowns were seen.
The first was identified as NOSS 6 (D) [14729/84012D], last seen 54
days ago. The second, 99497/18600A, correlates strongly with USA 224
[37348/11002A], last seen 198 days ago. There is a small chance that
one of the four Essaim objects (2004-049 launch), but its brightness
as well as the indication of a non-zero eccentricity of these
observations suggest it is indeed USA 224. The third unknown is
curious as it does not correlate with objects in either classfd.tle or
the JSpOC catalog. A circular orbit yields a 54.49 deg inclination
with a 15.717 revs/day mean motion. The residuals of a circular orbit
are also quite small, indicating the orbit could indeed be circular
(355 km altitude), or it was seen near perigee or apogee. The circular
orbit estimate is

Unknown 180411A
1 99498U 18601A   18101.12966830  .00000000  00000-0  50000-4 0    03
2 99498  54.4888 145.2045 0001000   0.0000 104.0270 15.71757488    07
# 20180411.13-20180411.13, 7 measurements, 0.001 deg rms

10529 77 112D   4171 G 20180410200804226 17 25 1806998+573132 37 S
10529 77 112D   4171 G 20180410200810160 17 25 1746456+552106 37 S
14729 84 012D   4171 G 20180411030344122 17 25 2043692+281139 37 S
14729 84 012D   4171 G 20180411030346404 17 25 2043647+271598 37 S
14729 84 012D   4171 G 20180411030349063 17 25 2043591+261317 37 S
14729 84 012D   4171 G 20180411030351902 17 25 2043549+250796 37 S
14729 84 012D   4171 G 20180411030353963 17 25 2043524+242195 37 S
14729 84 012D   4171 G 20180411030356163 17 25 2043503+233370 37 S
14729 84 012D   4171 G 20180411030358983 17 25 2043487+223370 37 S
14729 84 012D   4171 G 20180411030401122 17 25 2043488+214918 37 S
17997 87 043A   4171 G 20180410203303279 17 25 1358008+243204 37 S
17997 87 043A   4171 G 20180410203310333 17 25 1358785+224078 37 S
21799 91 076C   4171 G 20180410201644526 17 25 1829149+574984 37 S
21799 91 076C   4171 G 20180410201653611 17 25 1817332+561534 37 S
21799 91 076C   4171 G 20180410220956846 17 25 1550111+284703 37 S
21799 91 076C   4171 G 20180410221002886 17 25 1550677+273280 37 S
21799 91 076C   4171 G 20180410221012886 17 25 1551385+253394 37 S
21799 91 076C   4171 G 20180410221020606 17 25 1552027+240541 37 S
28537 05 004A   4171 G 20180411003647837 17 25 2245915+601488 37 S
28537 05 004A   4171 G 20180411003653089 17 25 2243776+592123 37 S
28537 05 004A   4171 G 20180411003704868 17 25 2239202+572349 37 S
28537 05 004A   4171 G 20180411003713927 17 25 2236244+555590 37 S
28537 05 004A   4171 G 20180411003721249 17 25 2234207+544699 37 S
28537 05 004A   4171 G 20180411022813524 17 25 0009554+590822 37 S
28537 05 004A   4171 G 20180411022823504 17 25 0001512+572645 37 S
28537 05 004A   4171 G 20180411022830392 17 25 2356647+561646 37 S
28541 05 004C   4171 G 20180411003655369 17 25 2244978+595697 37 S
28541 05 004C   4171 G 20180411003703049 17 25 2241895+583910 37 S
28541 05 004C   4171 G 20180411003713448 17 25 2238130+565612 37 S
28541 05 004C   4171 G 20180411003723568 17 25 2235030+551935 37 S
28541 05 004C   4171 G 20180411003729167 17 25 2233636+542727 37 S
28541 05 004C   4171 G 20180411022816285 17 25 0012728+593789 37 S
28541 05 004C   4171 G 20180411022823444 17 25 0006703+582525 37 S
28541 05 004C   4171 G 20180411022832304 17 25 2359915+565509 37 S
36104 09 066A   4171 G 20180410203058087 17 25 1806197+550030 37 S
36104 09 066A   4171 G 20180410203103616 17 25 1819847+553344 37 S
36104 09 066A   4171 G 20180410203111889 17 25 1840044+561033 37 S
37229 10 062H   4171 G 20180410205232896 17 25 1425106+223341 37 S
37229 10 062H   4171 G 20180410205242955 17 25 1433052+235852 37 S
37229 10 062H   4171 G 20180410205252956 17 25 1441134+252069 37 S
40382 15 004B   4171 G 20180410195725155 17 25 1743689+550270 37 S
40382 15 004B   4171 G 20180410195730394 17 25 1800007+553193 37 S
40964 15 058A   4171 G 20180410232234078 17 25 2135016+582929 37 S
40964 15 058A   4171 G 20180410232243618 17 25 2129912+565483 37 S
40964 15 058A   4171 G 20180410232252359 17 25 2125807+552996 37 S
40964 15 058A   4171 G 20180411030705467 17 25 2028870+243746 37 S
40964 15 058A   4171 G 20180411030710486 17 25 2029848+233471 37 S
40978 15 058Q   4171 G 20180410190427588 17 25 1712927+601183 37 S
40978 15 058Q   4171 G 20180410190433625 17 25 1700392+590085 37 S
40978 15 058Q   4171 G 20180410190443422 17 25 1641860+565650 37 S
40981 15 058R   4171 G 20180410232237040 17 25 2136628+585924 37 S
40981 15 058R   4171 G 20180410232243578 17 25 2133053+575405 37 S
40981 15 058R   4171 G 20180410232253558 17 25 2127994+561583 37 S
40981 15 058R   4171 G 20180410232300218 17 25 2125074+551149 37 S
40981 15 058R   4171 G 20180411030713332 17 25 2030936+242231 37 S
40981 15 058R   4171 G 20180411030720182 17 25 2032107+225786 37 S
42073 17 015B   4171 G 20180410195706543 17 25 1342368+241631 37 S
42073 17 015B   4171 G 20180410195709643 17 25 1346311+254279 37 S
42073 17 015B   4171 G 20180410195845874 17 25 1752769+601066 37 S
42073 17 015B   4171 G 20180410195849435 17 25 1805420+602214 37 S
99497 18 600A   4171 G 20180410230557708 17 25 2029295+570457 37 S
99497 18 600A   4171 G 20180410230600047 17 25 2035286+572303 37 S
99497 18 600A   4171 G 20180410230602668 17 25 2041991+574209 37 S
99497 18 600A   4171 G 20180410230604888 17 25 2047678+575679 37 S
99497 18 600A   4171 G 20180410230607408 17 25 2054124+581221 37 S
99497 18 600A   4171 G 20180410230610147 17 25 2101130+582677 37 S
99497 18 600A   4171 G 20180410230613068 17 25 2108574+584058 37 S
99497 18 600A   4171 G 20180410230615748 17 25 2115370+585156 37 S
99497 18 600A   4171 G 20180410230617628 17 25 2120117+585825 37 S
99498 18 601A   4171 G 20180411030638640 17 25 2048260+282299 37 S
99498 18 601A   4171 G 20180411030640241 17 25 2050201+273709 37 S
99498 18 601A   4171 G 20180411030641999 17 25 2052238+264809 37 S
99498 18 601A   4171 G 20180411030643860 17 25 2054297+255783 37 S
99498 18 601A   4171 G 20180411030645462 17 25 2055999+251578 37 S
99498 18 601A   4171 G 20180411030646882 17 25 2057447+243955 37 S
99498 18 601A   4171 G 20180411030648042 17 25 2058594+241071 37 S

------------------------------------------------------------------
Setup: Watec 902H2 video, 50mm F/1.8, NexStar mount, NTP timing
IOD format: http://www.satobs.org/position/IODformat.html
COSPAR 4171: 52.8344N, 6.3785E, 10m (WGS84)
------------------------------------------------------------------

Regards,
   Cees
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Received on Wed Apr 11 2018 - 11:14:58 UTC

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