Optical 23 April 2014 Part 2

From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
Date: Fri, 25 Apr 2014 16:08:30 +0200
Observations 23 APRIL 2014
------------------------------------

Cosatrak 1 (Computerised satellite Tracking System).

FLI ML8300M CCD camera with mechanical shutter + Trimble GPS

Used with NIKON ED AF NIKKOR 80-200mm f/2.8 telephoto lens
set at 85mm focal length. Field of view 12 X 9 degrees,
Images processed and measured manually.

Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg,
Elevation 10 metres-situated in Pinelands (Cape Town),South Africa

FOR CLASSFD.TLE:
--------------------------
25336 98 029A   0433 G 20140423194751074 16 15 0745006+135211 28  +096 01
25336 98 029A   0433 G 20140423194811074 16 15 0745203+135141 28  +095 05
25669 99 017A   0433 G 20140423183658896 16 15 1042349+085011 28
25669 99 017A   0433 G 20140423183721722 16 15 1042464+085426 39  +127 12
25669 99 017A   0433 G 20140423183804558 16 15 1043161+085738 38  +102 01
25669 99 017A   0433 G 20140423183847424 16 15 1043443+090152 68  +120 08
25669 99 017A   0433 G 20140423183950266 16 15 1044111+090355 28
25669 99 017A   0433 G 20140423184241619 16 15 1045461+092003 28
25669 99 017A   0433 G 20140423184347321 16 15 1046251+092623 28  +126 01
25669 99 017A   0433 G 20140423184430157 16 15 1046520+092915 38  +112 01
27168 02 001A   0433 G 20140423184430157 16 15 1057400+112716 38
33490 09 001A   0433 G 20140423195542682 16 15 1312365+060049 28  +087 01
33490 09 001A   0433 G 20140423195827212 16 15 1315174+055754 18  +080 02
35815 09 047A   0433 G 20140423195542682 16 15 1327511+052608 28  +109 01
35815 09 047A   0433 G 20140423195827212 16 15 1330361+052608 57  +109 02
38528 12 034A   0433 G 20140423195542682 16 15 1348159+024725 28  +080 01

STRAYS SEEN:
----------------------
19215 88 051A   0433 G 20140423195542682 16 15 1322326+062557 19  +131 10
19215 88 051A   0433 G 20140423195827212 16 15 1325052+061421 19  +121 05
23649 95 043A   0433 G 20140423194751074 16 15 0751056+132955 28  +110 01
24435 96 058A   0433 G 20140423195542682 16 15 1335106+092123 28  +101 01
24435 96 058A   0433 G 20140423195827212 16 15 1337522+091107 47  +122 01
24665 96 067A   0433 G 20140423195542682 16 15 1331521+084611 28  +097 02
24665 96 967A   0433 G 20140423195827212 16 15 1334373+084342 77  +097 01
24916 97 046A   0433 G 20140423195542682 16 15 1339348+063419 28  +112 01
24916 97 046A   0433 G 20140423195827212 16 15 1342193+063346 47  +109 01
25071 97 076A   0433 G 20140423184430157 16 15 1104087+053402 38  +122 01
25462 98 050A   0433 G 20140423184430157 16 15 1049171+053351 38  +123 02
25673 99 018A   0433 G 20140423195542682 16 15 1330350+063132 28  +107 01
25673 99 018A   0433 G 20140423195827212 16 15 1333197+063102 47
26494 00 054A   0433 G 20140423184430157 16 15 1103258+053516 38  +124 01
26590 00 068A   0433 G 20140423195542682 16 15 1316383+052618 28  +098 01
26590 00 068A   0433 G 20140423195827212 16 15 1319221+052616 67  +096 02
26666 01 002A   0433 G 20140423195827212 16 15 1305435+052807 18  +109 02
26719 01 011A   0433 G 20140423184430157 16 15 1050302+053200 38  +122 02
26766 01 019A   0433 G 20140423195542682 16 15 1328168+052538 28  +100 01
26766 01 019A   0433 G 20140423195827212 16 15 1331018+052538 67  +100 02
27825 03 026A   0433 G 20140423195542682 16 15 1312192+060249 28  +096 01
27825 03 026A   0433 G 20140423195827212 16 15 1315004+055952 18  +094 02
28089 03 053A   0433 G 20140423195542682 16 15 1334399+052614 28  +093 03
28089 03 053A   0433 G 20140423195827212 16 15 1337247+052613 47
28134 03 060A   0433 G 20140423195542682 16 15 1352171+052300 28  +103 01
28134 03 060A   0433 G 20140423195827212 16 15 1355065+052238 47
28445 05 015B   0433 G 20140423183721722 16 15 1102402+073524 68  +113 03
28445 05 015B   0433 G 20140423183804558 16 15 1103130+073451 38  +081 01
28445 05 015B   0433 G 20140423183847424 16 25 1103946+073358 49  +088 34
28445 05 015B   0433 G 20140423184347321 16 25 1107619+072951 28  +100 12
28445 05 015B   0433 G 20140423184430157 16 15 1108121+072725 98  +114 05
28542 05 005A   0433 G 20140423184430157 16 15 1052432+053438 38  +114 01
28885 05 041B   0433 G 20140423195542682 16 15 1325378+052600 28  +102 01
28885 05 041B   0433 G 20140423195827212 16 15 1328228+052558 47
33056 08 030B   0433 G 20140423195542682 16 15 1303018+053132 28  +114 01
33056 08 030B   0433 G 20140423195542682 16 15 1303095+052803 28  +111 01
33056 08 030B   0433 G 20140423195827212 16 15 1305356+053141 18  +114 02
33460 08 065B   0433 G 20140423195542682 16 15 1330152+053118 28  +107 01
33460 08 065B   0433 G 20140423195827212 16 15 1333003+053115 47
34957 97 053A   0433 G 20140423195542682 16 15 1341134+064904 28  +117 01
34957 97 053A   0433 G 20140423195827212 16 15 1343579+064824 28  +123 05
36745 10 032B   0433 G 20140423184430157 16 15 1059375+053139 38  +123 01
37393 11 016B   0433 G 20140423195542682 16 15 1350036+052256 28  +107 01
37393 11 016B   0433 G 20140423195827212 16 15 1352520+052237 47
38014 11 077A   0433 G 20140423195542682 16 15 1305151+052923 28
38014 11 077A   0433 G 20140423195827212 16 15 1307517+052928 87  +107 02
38245 12 016A   0433 G 20140423195542682 16 15 1328129+052251 28  +105 01
38245 12 016A   0433 G 20140423195827212 16 15 1330576+052246 47  +105 01
38741 12 043B   0433 G 20140423184430157 16 15 1102012+053405 38  +108 01
38778 12 051A   0433 G 20140423184430157 16 15 1048545+053024 38  +118 02
39034 12 075A   0433 G 20140423195542682 16 15 1351046+052111 28  +095 01
39034 12 075A   0433 G 20140423195827212 16 15 1353536+052043 87  +091 02
39079 13 006B   0433 G 20140423195542682 16 15 1320582+052833 28  +105 01
39079 13 006B   0433 G 20140423195827212 16 15 1323429+052832 57  +103 01
39285 13 056A   0433 G 20140423184430157 16 15 1049483+052851 38  +114 01
39522 14 007A   0433 G 20140423195542682 16 15 1339130+052831 48  +109 16
39522 14 007A   0433 G 20140423195827212 16 15 1341580+052825 67  +106 02
39617 14 011B   0433 G 20140423195542682 16 15 1310012+052252 28  +102 04
39617 14 011B   0433 G 20140423195827212 16 15 1312419+052249 67  +103 02

NOTES:
--------
(1) MERCURY 2 not seen at predicted area so either has increased westward
    drift rate and is now out of range to me or stopped drifting and is
    east of where I looked. Will check again eastward tonight if clear.

(2) Unknowns seen. I used Scott Campbells program to determine rough
    elements - and get

1st object:
-----------
ofeq object observations
99998 99 998A   0433 G 20140423172354214 55 15 1423598-454506 39  +045 05
99998 99 998A   0433 G 20140423172358214 55 15 1421438-470500 39  +045 05
orbit =
1 99998U 99998A   14113.72497933 0.00000073  00000-0  50000-4 0    04
2 99998 141.8059  47.7419 0008238 269.6700 360.0000 15.21159037    00

Second object:
---------------
object observations
99999 99 999B   0433 G 20140423191835643 55 15 0639486-261438 39  +073 05
99999 99 999B   0433 G 20140423192101552 55 15 0630245-554411 39  +080 05
99999 99 999B   0433 G 20140423192312413 55 15 0458225-800543 39  +085 05
orbit =
1 99999U 99999B   14113.80778256 0.00000073  00000-0  50000-4 0    05
2 99999  64.1405 306.2513 0008216  53.8904 180.0000 12.70226631    02

Based on these orbits I plan to do a plane search for each object
tonight. Of course a 4 second arc is nowhere near sufficient for an
orbit determination but the satellite is bright and Im using a wide
field. The second object will not be so easy despite the larger arc on
account of the faintness. Of course the drag term is incorrect and Im
certain the eccentricity is wrong as the program assumes a circular
orbit when only two points are used - something just struck me -- for
the second object I have three positions - I only used positions 1 and
3 to get the orbit, so circular, but if I use another of Scotts program
- name escapes me at the moment - it may be possible to get all three
positions to fit a non-circular orbit ?  (just thinking aloud!)

Cheers
Greg 

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Received on Fri Apr 25 2014 - 09:06:36 UTC

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