"Pseudo-MPEC" for 2007-004C = THEMIS-C
Created Mon Aug 03 11:32:04 2009 using Find_Orb
More info on this object can be found at http://nssdc.gsfc.nasa.gov/nmc/masterCatalog.do?sc=2007-004C. It's in a high-eccentricity two-day orbit, which should cause it to appear repeatedly as an "asteroid-like" object. It's part of a three-object series; its companion in a four-day orbit, Themis-B, has also been observed.
Astrometry:
2007-004C C2008 02 02.25711 08 59 18.78 -01 57 35.4 17.2 V D0136703
2007-004C C2008 02 02.26255 08 59 33.03 -01 58 30.3 17.2 V D0136703
2007-004C C2008 02 02.26803 08 59 47.14 -01 59 24.5 17.2 V D0136703
2007-004C C2008 02 02.27347 09 00 01.04 -02 00 19.5 17.1 V D0136703
2007-004C C2008 02 02.27772 09 00 11.70 -02 01 01.6 17.2 V D0136703
2007-004C C2008 02 02.28366 09 00 26.46 -02 02 01.0 16.9 V D0136703
2007-004C C2008 02 02.28963 09 00 41.22 -02 03 01.0 17.2 V D0136703
2007-004C C2008 02 02.29561 09 00 55.83 -02 04 00.6 17.3 V D0136703
2007-004C C2008 02 02.30218 09 01 11.74 -02 05 05.8 17.2 V D0136703
2007-004C C2008 02 02.30258 09 01 12.72 -02 05 09.6 17.0 V D0136703
2007-004C C2008 02 02.30299 09 01 13.72 -02 05 14.4 17.1 V D0136703
2007-004C C2008 02 02.30341 09 01 14.70 -02 05 18.2 17.3 V D0136703
2007-004C C2008 02 02.36781 09 03 54.22 -02 15 33.4 17.0 R D0136854
2007-004C C2008 02 02.36814 09 03 55.08 -02 15 36.4 16.6 R D0136854
2007-004C C2008 02 02.36986 09 03 59.58 -02 15 53.2 16.7 R D0136854
2007-004C C2008 02 02.40789 09 05 45.88 -02 22 22.9 17.1 V D0136703
2007-004C C2008 02 02.40826 09 05 47.00 -02 22 27.1 17.2 V D0136703
2007-004C C2008 02 02.40865 09 05 48.12 -02 22 30.2 17.2 V D0136703
2007-004C C2008 02 02.40902 09 05 49.27 -02 22 34.0 17.2 V D0136703
2007-004C C2009 03 18.11206 09 00 13.28 +02 41 17.1 x17.7 V D0202H55
2007-004C C2009 03 18.11226 09 00 14.88 +02 41 14.0 x17.3 V D0202H55
2007-004C C2009 03 18.11247 09 00 16.38 +02 41 10.9 x17.3 V D0202H55
2007-004C C2009 03 18.11287 09 00 19.07 +02 41 05.1 x16.8 V D0202H55
2007-004C C2009 03 18.11349 09 00 23.87 +02 40 55.1 x17.4 V D0202H55
2007-004C C2009 03 18.11389 09 00 26.60 +02 40 48.1 x17.2 V D0202H55
2007-004C C2009 04 29.18748 09 57 03.03 +00 47 50.2 x17.5 V D0210703
2007-004C C2009 04 29.19397 09 57 25.89 +00 46 07.0 x17.5 V D0210703
2007-004C C2009 04 29.20047 09 57 49.22 +00 44 21.8 x17.5 V D0210703
Station data:
(703) Catalina Sky Survey (N32.41707 W110.73264). Observers R. A. Kowalski,
E. J. Christensen, A. R. Gibbs, A.Odell. Measurers E. C. Beshore, E. J.
Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M.
Larson, R. H. McNaught, A. R. Gibbs. 0.68-m Schmidt + CCD.
(854) Sabino Canyon Observatory, Tucson (N32.29987 W110.82005). Observer J.
E. McGaha. 0.36-m f/10.0 Schmidt-Cassegrain + CCD.
(H55) Astronomical Research Observatory, Charleston (N39.4881 W88.1442).
Observer R. Holmes. 0.81-m f/4.0 astrograph + CCD.
Orbital elements:
2007-004C = THEMIS-C
Perigee 2008 Feb 1.258693 TT = 6:12:31 (JD 2454497.758693)
Epoch 2008 Feb 2.0 TT = JDT 2454498.5 Find_Orb
M 134.93806 (2000.0) P Q
n 182.02718012 Peri. 3.00908 0.69056689 0.71943317
a 66554.7941km Node 310.68112 -0.66561728 0.59191491
e 0.8737176 Incl. 5.62915 -0.28296817 0.36339047
P 1.98d H 31.8 G 0.15 q 8404.69747km Q 124704.890km
From 19 observations 2008 Feb. 2-2 (3.6 hr); RMS error 0.422 arcseconds
1 00000U 08033.00000000 .00000000 00000-0 00000-0 0 07
2 00000 5.6299 310.8016 8731739 3.0348 134.8283 0.50410875 07
Residuals in arcseconds:
080202 703 .18+ .13- 080202 703 .12+ .32- 090318 H55( 33d- 3.4d+)
080202 703 .10+ .48- 080202 703 .40- .06+ 090318 H55( 33d- 3.3d+)
080202 703 .38- .24+ 080202 854 .25+ .13+ 090318 H55( 33d- 3.3d+)
080202 703 .46+ .27- 080202 854 .24+ .35+ 090318 H55( 33d- 3.3d+)
080202 703 .07- .18+ 080202 854 .22+ .35+ 090318 H55( 33d- 3.3d+)
080202 703 .55- .19+ 080202 703 .32+ .02+ 090429 703(167d+ 14d+)
080202 703 .19+ .16- 080202 703 .29+ .61- 090429 703(149d+ 14d+)
080202 703 .23+ .07- 080202 703 .68- .06+ 090429 703(133d+ 15d+)
080202 703 .19- .21+ 080202 703 .32- .17-
080202 703 .00 .39+ 090318 H55( 33d- 3.4d+)
Ephemerides (500):
Date (UT) HH RA Dec delta r elong mag
---- -- -- -- ------------ ------------ ------ ------ ----- ---
2008 02 01 00 10 38 01.219 -02 43 44.02 73286 0.9856 147.7 16.5
2008 02 01 01 10 51 29.492 -03 00 55.94 65944 0.9856 144.9 16.4
2008 02 01 02 11 08 36.068 -03 21 51.34 57692 0.9855 141.2 16.2
2008 02 01 03 11 31 56.880 -03 48 33.05 48301 0.9855 136.1 16.0
2008 02 01 04 12 07 54.502 -04 24 54.42 37395 0.9854 127.9 15.6
2008 02 01 05 13 18 57.838 -05 16 51.22 24315 0.9853 111.3 15.2
2008 02 01 06 18 14 17.790 -03 25 03.80 9447 0.9852 42.1 17.3
2008 02 01 07 03 35 55.831 +05 30 10.89 18653 0.9853 101.0 15.0
2008 02 01 08 05 21 09.351 +04 21 33.73 32778 0.9854 125.7 15.4
2008 02 01 09 06 05 41.115 +03 34 54.87 44405 0.9855 135.9 15.8
2008 02 01 10 06 32 37.629 +03 02 36.47 54311 0.9856 141.8 16.1
2008 02 01 11 06 51 38.710 +02 38 14.57 62960 0.9856 145.9 16.3
2008 02 01 12 07 06 16.503 +02 18 44.56 70623 0.9857 148.9 16.4
2008 02 01 13 07 18 09.881 +02 02 28.32 77478 0.9858 151.3 16.6
2008 02 01 14 07 28 12.215 +01 48 28.48 83645 0.9858 153.2 16.7
2008 02 01 15 07 36 55.323 +01 36 08.95 89210 0.9859 154.7 16.8
2008 02 01 16 07 44 39.598 +01 25 05.64 94240 0.9859 156.0 16.8
2008 02 01 17 07 51 38.853 +01 15 01.73 98785 0.9859 157.2 16.9
2008 02 01 18 07 58 02.864 +01 05 45.03 102884 0.9860 158.1 17.0
2008 02 01 19 08 03 58.805 +00 57 06.41 106569 0.9860 159.0 17.0
2008 02 01 20 08 09 32.106 +00 48 58.85 109867 0.9860 159.7 17.1
2008 02 01 21 08 14 46.987 +00 41 16.80 112798 0.9861 160.3 17.1
2008 02 01 22 08 19 46.811 +00 33 55.81 115379 0.9861 160.8 17.1
2008 02 01 23 08 24 34.317 +00 26 52.20 117625 0.9861 161.3 17.2
2008 02 02 00 08 29 11.785 +00 20 02.89 119548 0.9861 161.7 17.2
2008 02 02 01 08 33 41.154 +00 13 25.24 121156 0.9862 162.0 17.2
2008 02 02 02 08 38 04.108 +00 06 56.95 122459 0.9862 162.2 17.2
2008 02 02 03 08 42 22.143 +00 00 35.96 123461 0.9862 162.4 17.2
2008 02 02 04 08 46 36.618 -00 05 39.59 124168 0.9862 162.6 17.2
2008 02 02 05 08 50 48.794 -00 11 51.44 124582 0.9862 162.6 17.2
2008 02 02 06 08 54 59.876 -00 18 01.24 124705 0.9862 162.6 17.2
2008 02 02 07 08 59 11.038 -00 24 10.60 124538 0.9862 162.6 17.2
2008 02 02 08 09 03 23.458 -00 30 21.12 124080 0.9862 162.5 17.2
2008 02 02 09 09 07 38.346 -00 36 34.43 123329 0.9862 162.3 17.2
2008 02 02 10 09 11 56.977 -00 42 52.25 122282 0.9862 162.1 17.2
2008 02 02 11 09 16 20.726 -00 49 16.40 120933 0.9862 161.8 17.2
2008 02 02 12 09 20 51.115 -00 55 48.88 119278 0.9862 161.5 17.2
2008 02 02 13 09 25 29.860 -01 02 31.91 117307 0.9862 161.1 17.2
2008 02 02 14 09 30 18.946 -01 09 28.04 115010 0.9862 160.6 17.1
2008 02 02 15 09 35 20.714 -01 16 40.24 112377 0.9862 160.0 17.1
2008 02 02 16 09 40 37.984 -01 24 12.01 109392 0.9862 159.4 17.1
2008 02 02 17 09 46 14.232 -01 32 07.61 106036 0.9861 158.6 17.0
2008 02 02 18 09 52 13.833 -01 40 32.34 102289 0.9861 157.8 17.0
2008 02 02 19 09 58 42.443 -01 49 32.87 98124 0.9861 156.8 16.9
2008 02 02 20 10 05 47.563 -01 59 17.86 93508 0.9861 155.6 16.8
2008 02 02 21 10 13 39.471 -02 09 58.90 88399 0.9860 154.2 16.8
2008 02 02 22 10 22 32.778 -02 21 51.89 82746 0.9860 152.6 16.7
2008 02 02 23 10 32 49.223 -02 35 19.59 76479 0.9860 150.6 16.5
2008 02 03 00 10 45 03.061 -02 50 56.06 69508 0.9859 148.2 16.4
2008 02 03 01 11 00 12.511 -03 09 35.14 61705 0.9859 145.0 16.2
2008 02 03 02 11 20 07.484 -03 32 48.21 52882 0.9858 140.7 16.0
2008 02 03 03 11 48 50.801 -04 03 23.30 42744 0.9857 134.3 15.7
2008 02 03 04 12 38 01.913 -04 46 36.88 30785 0.9857 123.0 15.4
2008 02 03 05 14 46 39.351 -05 34 19.41 16215 0.9856 92.6 15.0
2008 02 03 06 01 11 28.539 +05 08 50.15 11377 0.9855 64.8 15.6
2008 02 03 07 04 46 58.674 +04 46 15.17 26539 0.9856 115.8 15.2
2008 02 03 08 05 48 57.840 +03 49 39.21 39230 0.9857 130.3 15.7
2008 02 03 09 06 22 05.828 +03 12 11.91 49870 0.9858 137.8 16.0
2008 02 03 10 06 44 08.092 +02 44 59.68 59067 0.9859 142.7 16.2
2008 02 03 11 07 00 30.385 +02 23 46.52 67166 0.9860 146.2 16.4
2008 02 03 12 07 13 30.579 +02 06 23.41 74383 0.9860 148.9 16.5
2008 02 03 13 07 24 18.697 +01 51 38.14 80859 0.9861 151.0 16.7
2008 02 03 14 07 33 34.761 +01 38 46.71 86697 0.9861 152.8 16.8
2008 02 03 15 07 41 43.634 +01 27 20.56 91971 0.9862 154.3 16.8
2008 02 03 16 07 49 01.754 +01 17 00.12 96738 0.9862 155.6 16.9
2008 02 03 17 07 55 40.531 +01 07 31.47 101042 0.9863 156.7 17.0
2008 02 03 18 08 01 48.205 +00 58 44.32 104918 0.9863 157.7 17.0
2008 02 03 19 08 07 30.927 +00 50 30.86 108395 0.9863 158.6 17.1
2008 02 03 20 08 12 53.420 +00 42 45.01 111495 0.9864 159.3 17.1
2008 02 03 21 08 17 59.405 +00 35 21.90 114239 0.9864 160.0 17.1
2008 02 03 22 08 22 51.883 +00 28 17.58 116641 0.9864 160.6 17.2
2008 02 03 23 08 27 33.326 +00 21 28.75 118714 0.9864 161.1 17.2
2008 02 04 00 08 32 05.816 +00 14 52.64 120469 0.9864 161.5 17.2