"Pseudo-MPEC" for 1968-014B = NORAD 03145 = OGO 5 rk

Created 2016 May 30 19:56:30 UT using Find_Orb

The orbit has been adjusted along the line of variations to minimize the 2005 residuals.

This Spacewarn bulletin says the object re-entered on 2011 January 18. Integrating the orbit forward to that epoch brings the perigee down to 6435 km above the geocenter, well within the earth's atmosphere, so that makes sense.

Astrometry:
5X5E564       C2005 12 04.47366 22 24 25.00 -29 11 27.1         x       D0053E12
5X5E564       C2005 12 04.47390 22 24 26.68 -29 11 54.0         x       D0053E12
5X5E564       C2005 12 04.47960 22 25 17.32 -29 24 00.9         x       D0053E12
5X5E564       C2005 12 04.47984 22 25 19.09 -29 24 27.8         x       D0053E12
5X5E564       C2005 12 04.48557 22 26 10.84 -29 36 32.7         x       D0053E12
5X5E564       C2005 12 04.48581 22 26 12.82 -29 37 00.6         x       D0053E12
5X5E564       C2005 12 04.49157 22 27 05.40 -29 48 59.7         x       D0053E12
5X5E564       C2005 12 04.49181 22 27 07.52 -29 49 27.2         x       D0053E12
5X5E564       C2005 12 04.49900 22 28 14.91 -30 04 16.9         x       D0053E12
5X5E564       C2005 12 04.49970 22 28 21.33 -30 05 41.7         x       D0053E12
5X5E564       C2005 12 04.49987 22 28 23.26 -30 06 04.9         x       D0053E12
5X5E564       C2005 12 04.50057 22 28 29.46 -30 07 28.6         x       D0053E12
5X5E564       C2005 12 04.50075 22 28 31.56 -30 07 52.8         x       D0053E12
5X5E564       C2005 12 04.50145 22 28 37.91 -30 09 15.8         x       D0053E12
5X5E564       C2005 12 04.50162 22 28 39.74 -30 09 40.1         x       D0053E12
5X5E564       C2005 12 04.50232 22 28 46.06 -30 11 01.5         x       D0053E12
5X5E564       C2005 12 04.50317 22 28 54.32 -30 12 47.5         x15.5 V D0053E12
5X5E564       C2005 12 04.50338 22 28 56.34 -30 13 12.9         x15.7 V D0053E12
5X5E564       C2005 12 04.50358 22 28 58.30 -30 13 38.2         x14.9 V D0053E12
5X5E564       C2005 12 04.50380 22 29 00.37 -30 14 04.0         x15.5 V D0053E12
5X5E564       C2005 12 04.50482 22 29 10.02 -30 16 06.9         x15.5 V D0053E12
5X5E564       C2005 12 04.51000 22 30 00.23 -30 26 36.6         x15.3 V D0053E12
5X5E564       C2005 12 04.51518 22 30 51.34 -30 37 02.4         x15.2 V D0053E12
5X5E564       C2005 12 04.52032 22 31 42.82 -30 47 18.7         x15.4 V D0053E12
1968-014B     C2009 11 14.41307 21 41 16.13 -37 52 12.3          15.4 V D0328E12
1968-014B     C2009 11 14.41946 21 41 45.72 -37 56 50.0          15.5 V D0328E12
1968-014B     C2009 11 14.42581 21 42 15.46 -38 01 14.8                 D0328E12
1968-014B     C2009 11 14.43216 21 42 45.56 -38 05 26.7          15.6 V D0328E12
1968-014B    QC2009 11 14.46073 21 45 06.56 -38 22 08.2          15.0 R D0328E12
1968-014B    QC2009 11 14.46094 21 45 07.58 -38 22 14.4          15.5 R D0328E12
1968-014B    QC2009 11 14.46119 21 45 08.89 -38 22 22.3          15.5 R D0328E12
1968-014B    QC2009 11 14.46146 21 45 10.30 -38 22 31.0          15.4 R D0328E12
1968-014B    QC2009 11 14.46167 21 45 11.33 -38 22 37.6          15.5 R D0328E12
1968-014B    QC2009 11 14.46582 21 45 32.69 -38 24 44.6          15.5 R D0328E12
1968-014B    QC2009 11 14.46603 21 45 33.85 -38 24 51.3          15.7 R D0328E12
1968-014B    QC2009 11 14.46628 21 45 35.09 -38 24 58.7          15.5 R D0328E12
1968-014B    QC2009 11 14.46652 21 45 36.32 -38 25 05.7          15.7 R D0328E12
1968-014B    QC2009 11 14.46673 21 45 37.48 -38 25 12.4          15.4 R D0328E12
1968-014B    QC2009 11 14.47160 21 46 02.93 -38 27 35.7          15.3 R D0328E12
1968-014B    QC2009 11 14.47183 21 46 04.11 -38 27 42.2          15.7 R D0328E12
1968-014B    QC2009 11 14.47206 21 46 05.38 -38 27 49.1          15.3 R D0328E12
1968-014B    QC2009 11 14.47230 21 46 06.61 -38 27 55.9          15.3 R D0328E12
1968-014B    QC2009 11 14.47252 21 46 07.73 -38 28 02.0          15.3 R D0328E12
1968-014B    QC2009 11 14.51052 21 49 39.88 -38 43 43.6          15.3 R D0328E12
1968-014B    QC2009 11 14.51074 21 49 41.19 -38 43 48.5          15.3 R D0328E12
1968-014B    QC2009 11 14.51097 21 49 42.54 -38 43 53.2          15.6 R D0328E12
1968-014B    QC2009 11 14.51123 21 49 44.04 -38 43 58.6          15.6 R D0328E12
1968-014B    QC2009 11 14.51146 21 49 45.47 -38 44 03.8          15.3 R D0328E12
1968-014B    QC2009 11 14.51559 21 50 10.09 -38 45 29.3          15.4 R D0328E12
1968-014B    QC2009 11 14.51581 21 50 11.34 -38 45 33.4          15.4 R D0328E12
1968-014B    QC2009 11 14.51606 21 50 12.88 -38 45 38.5          15.4 R D0328E12
1968-014B    QC2009 11 14.51632 21 50 14.41 -38 45 43.8          15.3 R D0328E12
1968-014B    QC2009 11 14.51655 21 50 15.77 -38 45 48.5          15.4 R D0328E12

Station data:
(E12) Siding Spring Survey (S31.2735 E149.0642)  Australia/NSW.   Observer G.
    J. Garradd.  0.5-m Uppsala Schmidt + CCD.

Orbital elements:  1968-014B = NORAD 03145 = OGO 5 rk
   Perigee 2009 Nov 13.794043 +/- 0.000808 TT = 19:03:25 (JD 2455149.294043)
Epoch 2009 Nov 14.0 TT = JDT 2455149.5                        Find_Orb
M  28.80282 +/- 0.14                (J2000 equatorial)
n 139.84896285 +/- 0.208            Peri.   74.38260 +/- 0.037
a 79340.9396 +/- 78.8               Node    98.98061 +/- 0.0021
e   0.8497057 +/- 0.000219          Incl.   46.18738 +/- 0.0026
P3706.79m/2.574d           H 27.9   G  0.15   U 11.7
q 11924.4884 +/- 14.2    Q 146757.390 +/- 157
29 of 53 observations 2009 Nov. 14 (2.5 hr); mean residual 0".259
Residuals in arcseconds: 
051204 E12(45.0+ 54.1+)   051204 E12(42.1+ 53.6+)   091114 E12 .375- .212+
051204 E12(39.6+ 57.8+)   051204 E12(41.6+ 54.6+)   091114 E12 .437+ .181-
051204 E12(45.2+ 54.3+)   051204 E12(39.8+ 56.0+)   091114 E12 .126+ .078-
051204 E12(40.5+ 57.7+)   051204 E12(40.1+ 54.8+)   091114 E12 .247- .061+
051204 E12(44.9+ 53.4+)   051204 E12(41.5+ 53.0+)   091114 E12 .428+ .211-
051204 E12(42.4+ 55.5+)   051204 E12(42.2+ 51.5+)   091114 E12 4.6m+ .108-
051204 E12(41.5+ 54.4+)   091114 E12 .359- .225+    091114 E12 .481- .108+
051204 E12(40.3+ 56.7+)   091114 E12 .152- .351+    091114 E12 .125- .112+
051204 E12(43.9+ 54.4+)   091114 E12 .019+ .390-    091114 E12 4.7m+ .126-
051204 E12(41.4+ 55.5+)   091114 E12 .025+ .128+    091114 E12 .099- .039+
051204 E12(45.6+ 53.1+)   091114 E12 .497+ .232-    091114 E12 .535- .128+
051204 E12(40.0+ 55.2+)   091114 E12 .137- .161+    091114 E12 .274+ .226-
051204 E12(45.1+ 53.1+)   091114 E12 .223+ .096+    091114 E12 .540+ .214-
051204 E12(41.2+ 55.8+)   091114 E12 .545+ .159-    091114 E12 .265- .162+
051204 E12(44.0+ 52.3+)   091114 E12 3.4m+ .202-    091114 E12 .206+ .139+
051204 E12(39.5+ 56.4+)   091114 E12 .354- .218+    091114 E12 .156- .108+
051204 E12(41.3+ 54.3+)   091114 E12 .483+ .142-    091114 E12 .411- .060+
051204 E12(41.5+ 54.5+)   091114 E12 .187- 7.0m-

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag " sig PA
---- -- -- --  ------------   ------------  ------ ------ -----  --- ---- ---
2009 11 14 00  20 17 26.245   -24 04 11.43   63250 .98931  69.6 15.2  159 132
2009 11 14 01  20 32 00.084   -26 49 14.76   71207 .98930  72.2 15.3  104 131
2009 11 14 02  20 44 15.705   -28 58 08.41   78459 .98929  74.3 15.4   69 130
2009 11 14 03  20 54 54.842   -30 42 42.19   85104 .98929  76.2 15.5   46 130
2009 11 14 04  21 04 23.142   -32 09 57.88   91220 .98929  77.8 15.6   30 129
2009 11 14 05  21 12 57.481   -33 24 23.78   96863 .98929  79.2 15.6   19 130
2009 11 14 06  21 20 49.554   -34 28 59.72  102081 .98928  80.4 15.7   11 130
2009 11 14 07  21 28 07.806   -35 25 51.36  106909 .98928  81.5 15.7  6.7 133
2009 11 14 08  21 34 58.538   -36 16 29.49  111377 .98928  82.6 15.8  3.2 138
2009 11 14 09  21 41 26.588   -37 02 01.57  115511 .98928  83.6 15.8  1.1 158
2009 11 14 10  21 47 35.761   -37 43 18.91  119332 .98928  84.5 15.8  0.5  56
2009 11 14 11  21 53 29.106   -38 21 01.30  122856 .98929  85.3 15.9  0.5  94
2009 11 14 12  21 59 09.123   -38 55 40.16  126100 .98929  86.1 15.9  0.1  87
2009 11 14 13  22 04 37.885   -39 27 40.61  129074 .98929  86.9 15.9  1.2 104
2009 11 14 14  22 09 57.149   -39 57 23.05  131792 .98929  87.6 15.9  2.8 106
2009 11 14 15  22 15 08.419   -40 25 04.18  134261 .98929  88.3 15.9  5.0 107
2009 11 14 16  22 20 13.004   -40 50 57.83  136491 .98929  89.0 15.9  7.5 107
2009 11 14 17  22 25 12.061   -41 15 15.51  138488 .98929  89.6 15.9   10 107
2009 11 14 18  22 30 06.625   -41 38 06.91  140259 .98929  90.3 15.9   13 107
2009 11 14 19  22 34 57.632   -41 59 40.16  141808 .98929  90.9 15.9   17 107
2009 11 14 20  22 39 45.947   -42 20 02.19  143140 .98930  91.5 15.9   21 106
2009 11 14 21  22 44 32.374   -42 39 18.83  144258 .98930  92.1 15.9   26 106
2009 11 14 22  22 49 17.677   -42 57 35.06  145166 .98930  92.7 15.9   31 105
2009 11 14 23  22 54 02.586   -43 14 55.05  145865 .98930  93.3 15.9   36 105
2009 11 15 00  22 58 47.813   -43 31 22.34  146359 .98930  93.9 15.9   42 104
2009 11 15 01  23 03 34.061   -43 46 59.82  146647 .98930  94.4 15.9   48 104
2009 11 15 02  23 08 22.033   -44 01 49.88  146731 .98930  95.0 15.9   54 103
2009 11 15 03  23 13 12.441   -44 15 54.37  146612 .98930  95.6 15.8   62 102
2009 11 15 04  23 18 06.020   -44 29 14.67  146287 .98930  96.2 15.8   69 102
2009 11 15 05  23 23 03.532   -44 41 51.69  145758 .98930  96.8 15.8   78 101
2009 11 15 06  23 28 05.781   -44 53 45.84  145022 .98930  97.3 15.7   87 100
2009 11 15 07  23 33 13.623   -45 04 57.08  144078 .98930  97.9 15.7   97  99
2009 11 15 08  23 38 27.981   -45 15 24.78  142922 .98930  98.5 15.7  107  98
2009 11 15 09  23 43 49.861   -45 25 07.78  141553 .98930  99.1 15.6  119  98
2009 11 15 10  23 49 20.370   -45 34 04.23  139966 .98930  99.8 15.6  132  97
2009 11 15 11  23 55 00.737   -45 42 11.54  138157 .98930 100.4 15.5  146  96
2009 11 15 12  00 00 52.342   -45 49 26.19  136120 .98930 101.1 15.5  162  95
2009 11 15 13  00 06 56.750   -45 55 43.60  133849 .98930 101.7 15.4  179  94
2009 11 15 14  00 13 15.750   -46 00 57.84  131337 .98930 102.4 15.3  199  93
2009 11 15 15  00 19 51.410   -46 05 01.28  128576 .98929 103.2 15.3  221  92
2009 11 15 16  00 26 46.147   -46 07 44.16  125556 .98929 103.9 15.2  246  90
2009 11 15 17  00 34 02.810   -46 08 53.91  122265 .98929 104.7 15.1  274  89
2009 11 15 18  00 41 44.804   -46 08 14.27  118691 .98928 105.6 15.0  307  88
2009 11 15 19  00 49 56.244   -46 05 24.01  114818 .98928 106.5 14.9  345  86
2009 11 15 20  00 58 42.175   -45 59 55.02  110629 .98927 107.5 14.8  390  85
2009 11 15 21  01 08 08.876   -45 51 09.54  106101 .98927 108.5 14.7  444  83
2009 11 15 22  01 18 24.302   -45 38 15.84  101209 .98926 109.6 14.5  510  82
2009 11 15 23  01 29 38.736   -45 20 01.41   95923 .98925 110.9 14.4  592  80
2009 11 16 00  01 42 05.789   -44 54 41.63   90204 .98924 112.2 14.2  696  78
2009 11 16 01  01 56 04.001   -44 19 40.31   84004 .98923 113.8 14.0  833  75
2009 11 16 02  02 11 59.526   -43 30 53.91   77263 .98922 115.6 13.8 1019  72
2009 11 16 03  02 30 30.948   -42 21 41.29   69902 .98921 117.6 13.5 1286  69
2009 11 16 04  02 52 38.645   -40 40 12.44   61815 .98919 120.1 13.1 1694  66
2009 11 16 05  03 20 05.203   -38 03 20.84   52854 .98916 123.2 12.7 2383  61
2009 11 16 06  03 56 07.937   -33 39 05.16   42811 .98913 127.1 12.1 3731  56
2009 11 16 07  04 48 35.671   -25 01 02.62   31409 .98909 131.9 11.3 7135  50
2009 11 16 08  06 26 40.728   -02 11 33.93   18688 .98903 131.0 10.2 348'  44
2009 11 16 09  13 40 09.606   +44 58 55.57   12584 .98890  68.2 11.8 680' 102
2009 11 16 10  18 06 41.621   +07 18 50.67   24005 .98882  47.3 14?? 184' 136
2009 11 16 11  19 08 12.789   -08 32 49.21   36287 .98878  54.5 15?? 4849 136