MPEC 2001-Y47: 2001 YJ4
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M.P.E.C. 2001-Y47 Issued 2001 Dec. 27, 06:56 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 YJ4
Observations:
K01Y04J* C2001 12 22.54993 10 15 20.15 -03 25 26.6 19.3 608
K01Y04J C2001 12 22.56058 10 15 21.29 -03 25 43.9 19.1 608
K01Y04J C2001 12 22.57107 10 15 22.40 -03 26 00.7 19.0 608
K01Y04J C2001 12 24.06229 10 18 08.61 -04 06 08.2 17.7 R 046
K01Y04J C2001 12 24.06508 10 18 08.96 -04 06 13.4 046
K01Y04J C2001 12 24.06867 10 18 09.43 -04 06 18.6 046
K01Y04J C2001 12 24.06973 10 18 09.60 -04 06 19.7 046
K01Y04J C2001 12 24.07075 10 18 09.82 -04 06 23.0 17.6 R 046
K01Y04J C2001 12 24.52916 10 19 00.76 -04 18 52.3 18.4 644
K01Y04J C2001 12 24.53984 10 19 01.95 -04 19 10.2 18.2 644
K01Y04J C2001 12 24.55164 10 19 03.25 -04 19 29.8 18.5 644
K01Y04J C2001 12 24.55778 10 19 04.34 -04 19 38.6 18.9 608
K01Y04J C2001 12 24.56827 10 19 05.52 -04 19 55.9 19.0 608
K01Y04J C2001 12 24.57962 10 19 06.70 -04 20 14.2 18.9 608
K01Y04J C2001 12 26.50420 10 22 44.57 -05 14 00.7 19.4 644
K01Y04J C2001 12 26.51515 10 22 45.79 -05 14 19.1 18.8 644
K01Y04J C2001 12 26.52517 10 22 46.89 -05 14 36.2 18.6 644
K01Y04J C2001 12 26.54708 10 22 49.72 -05 15 12.9 18.7 608
K01Y04J C2001 12 26.55768 10 22 50.89 -05 15 30.9 18.6 608
K01Y04J C2001 12 26.56820 10 22 52.07 -05 15 48.3 18.4 608
Observer details:
046 Klet. Observers M. Kocer, M. Kocherova. 0.57-m f/5.2 reflector + CCD.
608 Haleakala-NEAT/MSSS. Observers E. F. Helin, S. Pravdo, K. Lawrence,
P. Kervin, R. Maeda, J. Africano, M. Hicks. 1.2-m reflector + CCD.
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
M. Hicks, E. Hovland, T. Bickler, J. Schroeder, L. Scherr, R. Thicksten,
A. Deetz. 1.2-m Schmidt + CCD.
Orbital elements:
2001 YJ4
Epoch 2001 Dec. 17.0 TT = JDT 2452260.5 MPC
M 336.35744 (2000.0) P Q
n 0.23268066 Peri. 316.25766 -0.88348607 +0.44110527
a 2.6179571 Node 250.53124 -0.37048220 -0.86397467
e 0.6098473 Incl. 9.63056 -0.28669724 -0.24284544
P 4.24 H 15.9 G 0.15
From 19 observations 2001 Dec. 22-26.
Ephemeris:
2001 YJ4 a,e,i = 2.62, 0.61, 10 q = 1.0214
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 12 27 10 23.69 -05 28.0 0.825 1.525 114.6 35.9 17.9
2002 01 06 10 43.77 -10 41.9 0.698 1.444 117.4 37.2 17.4
2002 01 16 11 06.78 -16 59.1 0.586 1.366 118.7 39.2 17.0
2002 01 26 11 35.14 -24 30.6 0.492 1.290 118.0 42.4 16.6
2002 02 05 12 13.34 -33 16.0 0.417 1.220 114.7 47.2 16.2
2002 02 15 13 09.09 -42 32.7 0.363 1.157 108.8 53.9 16.0
2002 02 25 14 32.19 -50 10.0 0.332 1.103 101.1 61.8 15.9
2002 03 07 16 18.84 -52 48.0 0.323 1.061 93.2 69.1 16.0
2002 03 17 17 57.04 -49 26.5 0.333 1.033 87.1 74.1 16.2
2002 03 27 19 06.33 -42 46.9 0.356 1.022 83.6 76.1 16.4
2002 04 06 19 52.14 -35 27.6 0.386 1.027 83.0 75.1 16.5
2002 04 16 20 23.19 -28 37.5 0.419 1.050 84.6 72.1 16.6
2002 04 26 20 44.64 -22 34.8 0.449 1.088 88.0 67.6 16.7
2002 05 06 20 59.05 -17 20.6 0.476 1.138 93.0 62.3 16.8
2002 05 16 21 07.36 -12 52.1 0.499 1.199 99.5 56.3 16.8
2002 05 26 21 09.88 -09 07.3 0.517 1.267 107.3 49.7 16.8
2002 06 05 21 06.78 -06 05.8 0.535 1.341 116.4 42.7 16.8
2002 06 15 20 58.32 -03 50.1 0.554 1.419 126.7 35.0 16.8
2002 06 25 20 45.45 -02 22.9 0.581 1.499 137.8 27.1 16.8
2002 07 05 20 29.90 -01 44.1 0.619 1.580 148.9 19.4 16.8
2002 07 15 20 13.84 -01 48.8 0.674 1.662 158.2 13.1 16.9
2002 07 25 19 59.56 -02 26.6 0.748 1.743 162.2 10.3 17.1
2002 08 04 19 48.55 -03 24.2 0.842 1.824 158.4 11.8 17.5
2002 08 14 19 41.47 -04 29.9 0.956 1.905 150.6 15.1 18.0
2002 08 24 19 38.36 -05 34.6 1.087 1.984 141.9 18.3 18.5
2002 09 03 19 38.76 -06 33.0 1.235 2.062 133.2 20.9 19.0
2002 09 13 19 42.15 -07 22.0 1.396 2.138 124.9 22.7 19.4
2002 09 23 19 47.99 -08 00.1 1.569 2.213 116.9 23.8 19.7
2002 10 03 19 55.78 -08 26.8 1.752 2.286 109.3 24.4 20.0
2002 10 13 20 05.12 -08 42.2 1.941 2.358 101.9 24.5 20.3
2002 10 23 20 15.66 -08 46.6 2.135 2.428 94.7 24.1 20.6
2002 11 02 20 27.11 -08 40.6 2.332 2.497 87.6 23.4 20.8
2002 11 12 20 39.27 -08 24.8 2.530 2.564 80.7 22.4 21.0
2002 11 22 20 51.93 -07 59.8 2.726 2.629 73.9 21.2 21.2
2002 12 02 21 04.94 -07 26.4 2.918 2.693 67.2 19.7 21.4
2002 12 12 21 18.20 -06 45.3 3.104 2.755 60.5 18.1 21.5
2002 12 22 21 31.58 -05 57.3 3.283 2.816 53.8 16.4 21.6
2003 01 01 21 45.00 -05 03.1 3.451 2.875 47.2 14.5 21.7
2003 01 11 21 58.41 -04 03.5 3.608 2.932 40.6 12.6 21.8
2003 01 21 22 11.72 -02 59.3 3.752 2.988 34.1 10.6 21.8
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-Y47
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