CB Obs April 19/20, 2013; IGS 8 objects

From: C. Bassa (cgbsat@gmail.com)
Date: Sat Apr 20 2013 - 15:39:41 UTC

  • Next message: edlight@juno.com: "New spacetrack site quesrtion"

    Observations obtained during the night of April 19/20, 2013.
    
    07816 75 043A   4553 G 20130420025817776 17 25 0121971+524281 37 I
    09415 76 091A   4553 G 20130419230947764 17 25 2046578+550601 37 I
    09415 76 091A   4553 G 20130419230957776 17 25 2031668+553859 37 I
    09415 76 091A   4553 G 20130419231007784 17 25 2015176+560472 37 I
    14728 84 012C   4553 G 20130420032427774 17 25 0041287+675867 37 S
    14729 84 012D   4553 G 20130420032907772 17 25 0149729+694946 37 S
    14729 84 012D   4553 G 20130420032917784 17 25 0143520+655596 37 S
    15071 84 065C   4553 G 20130419234049130 17 25 2101278+684904 37 S
    15071 84 065C   4553 G 20130419234056390 17 25 2031298+694109 37 S
    16591 86 014A   4553 G 20130420015301514 17 25 0106740+714717 37 I
    16591 86 014A   4553 G 20130420015307805 17 25 0054687+695489 37 I
    16591 86 014A   4553 G 20130420015316373 17 25 0041921+672569 37 I
    18009 87 043E   4553 G 20130419223211780 17 25 2317352+662079 37 S
    18009 87 043E   4553 G 20130419223221780 17 25 2251985+650560 37 S
    18009 87 043E   4553 G 20130419223231780 17 25 2229920+633869 37 S
    18025 87 043H   4553 G 20130419221221789 17 25 2220507+691147 37 S
    18025 87 043H   4553 G 20130419221231789 17 25 2156801+671790 37 S
    18025 87 043H   4553 G 20130419221241788 17 25 2137983+651877 37 S
    19460 88 078A   4553 G 20130419230431766 17 25 0036767+600907 37 S
    19460 88 078A   4553 G 20130419230441777 17 25 0031609+613997 37 S
    19460 88 078A   4553 G 20130419230451766 17 25 0025315+631585 37 S
    20642 90 050E   4553 G 20130420004847762 17 25 0013252+711325 37 S
    20642 90 050E   4553 G 20130420004857761 17 25 2355044+690409 37 S
    20642 90 050E   4553 G 20130420004907773 17 25 2340937+665425 37 S
    20691 90 050C   4553 G 20130420004427783 17 25 0009944+711927 37 S
    20691 90 050C   4553 G 20130420004437763 17 25 2351489+690568 37 S
    20691 90 050C   4553 G 20130420004447763 17 25 2337310+665213 37 S
    20691 90 050C   4553 G 20130420023617795 17 25 0118659+624154 37 S
    20691 90 050C   4553 G 20130420023637795 17 25 0052106+592371 37 S
    20691 90 050C   4553 G 20130420023647795 17 25 0041302+574242 37 S
    20692 90 050D   4553 G 20130420004547763 17 25 0021110+711773 37 S
    20692 90 050D   4553 G 20130420004557783 17 25 0001160+690872 37 S
    20692 90 050D   4553 G 20130420004607763 17 25 2345539+665830 37 S
    20692 90 050D   4553 G 20130420023747795 17 25 0105654+611613 37 S
    20692 90 050D   4553 G 20130420023757794 17 25 0052922+593521 37 S
    20692 90 050D   4553 G 20130420023807805 17 25 0041874+575367 37 S
    23233 94 057A   4553 G 20130420035207773 17 25 0037158+601422 37 R
    23233 94 057A   4553 G 20130420035217761 17 25 0015396+603310 37 R
    23233 94 057A   4553 G 20130420035227782 17 25 2351939+603559 37 R
    28537 05 004A   4553 G 20130419221121789 17 25 2208839+712835 37 S
    28537 05 004A   4553 G 20130419221131789 17 25 2145805+700812 37 S
    28537 05 004A   4553 G 20130419221141802 17 25 2125886+683910 37 S
    28538 05 004B   4553 G 20130420033037784 17 25 0203953+690494 37 I
    28538 05 004B   4553 G 20130420033047772 17 25 0149583+673153 37 I
    28538 05 004B   4553 G 20130420033057772 17 25 0136932+655451 37 I
    28538 05 004B   4553 G 20130420033107772 17 25 0126206+641594 37 I
    28541 05 004C   4553 G 20130419221131789 17 25 2200262+710196 37 S
    28541 05 004C   4553 G 20130419221141802 17 25 2138365+693776 37 S
    28541 05 004C   4553 G 20130419221151781 17 25 2119847+680612 37 S
    29393 06 037A   4553 G 20130420002637791 17 25 2318587+592549 37 S
    29393 06 037A   4553 G 20130420002647771 17 25 2346370+590112 37 S
    35938 09 052B   4553 G 20130420022722218 17 25 2048311+634070 37 S
    35938 09 052B   4553 G 20130420022727758 17 25 2055423+624358 37 S
    35938 09 052B   4553 G 20130420022737759 17 25 2106854+610063 37 S
    35938 09 052B   4553 G 20130420022747758 17 25 2116778+591764 37 S
    36125 09 073B   4553 G 20130420030117784 17 25 0123034+512484 37 S
    36125 09 073B   4553 G 20130420030127776 17 25 0110687+521307 37 S
    36125 09 073B   4553 G 20130420030137783 17 25 0056484+525817 37 S
    38109 12 014A   4553 G 20130420010017769 17 25 1942830+581031 37 S
    38109 12 014A   4553 G 20130420010027757 17 25 1931898+603800 37 S
    38109 12 014A   4553 G 20130420010037776 17 25 1918619+630870 37 S
    38758 12 048A   4553 G 20130420030410962 17 25 2201636+665715 37 S
    38758 12 048A   4553 G 20130420030417773 17 25 2215648+655953 37 S
    38758 12 048A   4553 G 20130420030427783 17 25 2233674+643098 37 S
    38770 12 048N   4553 G 20130419225751768 17 25 2328460+604852 37 I
    38770 12 048N   4553 G 20130419225801769 17 25 2305921+600919 37 I
    38770 12 048N   4553 G 20130419225811780 17 25 2244415+591421 37 I
    38773 12 048P   4553 G 20130420030407782 17 25 2209045+664586 37 S
    38773 12 048P   4553 G 20130420030417773 17 25 2228189+651751 37 S
    38773 12 048P   4553 G 20130420030424314 17 25 2239105+641782 37 S
    99046 13 595A   4553 G 20130419234427789 17 25 2211059+424384 37 S
    99046 13 595A   4553 G 20130419234437790 17 25 2225753+432540 37 S
    99046 13 595A   4553 G 20130419234447789 17 25 2240170+435699 37 S
    99048 13 596A   4553 G 20130420001310957 17 25 2250184+500538 37 S
    99048 13 596A   4553 G 20130420001317769 17 25 2303453+502048 37 S
    99048 13 596A   4553 G 20130420001325848 17 25 2318658+503004 37 S
    99050 13 596C   4553 G 20130420000317841 17 25 2225352+535841 37 S
    99050 13 596C   4553 G 20130420000327661 17 25 2246417+542080 37 S
    99052 13 610A   4553 G 20130420000537860 17 25 2239736+480261 37 I
    99052 13 610A   4553 G 20130420000547772 17 25 2257788+483032 37 I
    99052 13 610A   4553 G 20130420000555340 17 25 2311124+484262 37 I
    99053 13 610B   4553 G 20130420002525323 17 25 2330266+571518 37 I
    99053 13 610B   4553 G 20130420002526912 17 25 2334248+571230 37 I
    
    ----------------------------------------------------------------
    Setup: Watec 902H2 video, 50mm F/1.8, NTP, Nexstar SLT mount
    IOD format: http://www.satobs.org/position/IODformat.html
    COSPAR 4553: 53.3199N, 2.2438W, 86m (WGS84)
    ------------------------------------------------------------------
    
    NOTES:
    ------
    (1) This night I targeted the search orbits I posted earlier. Some of
        these were updated with the observations by Bjorn Gimle and
        Russell Eberst. Objects 99046, 99048 and 99050 were reasonably on
        track with predictions, though 99047, 99049 and 99051 did not have
        obvious matches. On the other hand two objects (99052 and 99053)
        were seen that did not match objects I had seen before, though
        99052 matches 13002C and 13002F that Russell saw on the 16th and
        17th: http://www.satobs.org/seesat/Apr-2013/0116.html (see below).
    
        I am now reasonably confident about the following circular search
        orbits. They use the identifications that I have reported
        before. Object 99046 was seen by Bjorn as 99162 and Russell as
        13002D. Neither Russell nor Bjorn saw 99048, though they both
        reported positions for 99050; Bjorn as 99164, 99165 and 99285,
        Russell as 13002A on the 15th and 16th. As mentioned above,
        Russell saw object 99052 first as 13002C and 13002F.
    
        As Space Track reports 6 objects from the 2013-002 launch still in
        orbit I have assumed that the remaining observations belong to
        these two objects. However, I can not explain them with circular
        orbits. I managed to obtain an eccentric orbit for my 99049, 99051
        and Bjorn's 99159 observations; that orbit is listed below, but
        could well be wrong.
    
        This leaves my two 99047 observations, my 99053 observations and
        Russell's 13002E objects unexplained. So far I have not been able
        to fit an eccentric orbit to these observations.
    
        I will try to obtain more observations tonight; hopefully that
        will help explain all the observations obtained so far.
    
    Unkown 20130405A
    1 99046U 13595A   13109.98932626  .00000000  00000-0  50000-4 0    00
    2 99046  97.4392 230.9882 0000000   0.0000  63.7205 15.17656575    07
    Unknown 20130406A
    1 99048U 13596A   13110.00924077 0.00001127  00000-0  50000-4 0    04
    2 99048  97.8868 233.3291 0000000   0.0000  62.4429 15.21610560    00
    Unknown 20130406B
    1 99049U 13596B   13097.92195602  .00000000  00000-0  50000-4 0    07
    2 99049  98.0693 222.0995 0081078 230.7562 191.5607 15.31271789    09
    Unknown 20130406C
    1 99050U 13596C   13110.00234665 0.00000000  00000-0  50000-4 0    09
    2 99050  97.6082 229.3442 0000000   0.0000  61.5627 14.99482531    08
    Unknown 20130420A
    1 99052U 13610A   13110.00401157  .00000000  00000-0  50000-4 0    01
    2 99052  97.5320 231.9784 0000000   0.0000  62.7086 15.22649562    08
    
    Regards,
       Cees
    _______________________________________________
    Seesat-l mailing list
    http://mailman.satobs.org/mailman/listinfo/seesat-l
    



    This archive was generated by hypermail 2b29 : Sat Apr 20 2013 - 15:41:14 UTC