MPEC 2002-A28 : 2001 XN254
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M.P.E.C. 2002-A28 Issued 2002 Jan. 8, 21:40 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 XN254
Observations:
K01XP4N C2001 11 16.48254 07 04 21.27 +23 06 13.0 20.1 V 691
K01XP4N C2001 11 16.50532 07 04 22.15 +23 06 09.9 20.4 V 691
K01XP4N C2001 11 16.52816 07 04 23.01 +23 06 07.0 20.3 V 691
K01XP4N* C2001 12 09.46829 07 11 14.53 +22 18 16.1 568
K01XP4N C2001 12 09.52376 07 11 13.70 +22 18 09.5 568
K01XP4N C2001 12 09.55544 07 11 13.19 +22 18 05.3 568
K01XP4N C2001 12 10.36314 07 11 04.76 +22 16 23.5 18.0 704
K01XP4N C2001 12 10.37812 07 11 04.53 +22 16 22.5 18.7 704
K01XP4N C2001 12 10.39310 07 11 04.21 +22 16 19.6 18.9 704
K01XP4N C2001 12 10.40809 07 11 03.97 +22 16 18.2 18.8 704
K01XP4N C2001 12 13.39667 07 10 15.03 +22 10 12.9 18.2 644
K01XP4N C2001 12 13.46833 07 10 13.19 +22 10 03.7 18.2 644
K01XP4N C2001 12 13.53153 07 10 11.60 +22 09 54.9 18.2 644
K01XP4N C2001 12 14.37466 07 09 53.29 +22 08 13.2 18.0 704
K01XP4N C2001 12 14.38986 07 09 52.84 +22 08 11.4 18.4 704
K01XP4N C2001 12 14.40506 07 09 52.39 +22 08 09.2 18.2 704
K01XP4N C2001 12 14.42027 07 09 51.94 +22 08 07.7 18.1 704
K01XP4N C2001 12 14.43548 07 09 51.50 +22 08 05.2 18.3 704
K01XP4N C2001 12 17.37415 07 08 28.80 +22 02 01.5 17.8 704
K01XP4N C2001 12 17.38936 07 08 28.23 +22 01 59.8 18.2 704
K01XP4N C2001 12 17.40457 07 08 27.64 +22 01 58.2 18.5 704
K01XP4N C2001 12 17.41980 07 08 27.06 +22 01 56.1 18.2 704
K01XP4N C2001 12 17.43502 07 08 26.48 +22 01 53.8 18.4 704
K01XP4N C2001 12 17.66505 07 08 18.31 +22 01 26.1 568
K01XP4N C2001 12 19.38605 07 07 16.75 +21 57 49.8 18.1 704
K01XP4N C2001 12 19.40348 07 07 15.96 +21 57 47.2 18.3 704
K01XP4N C2001 12 19.42468 07 07 15.02 +21 57 44.1 18.4 704
K01XP4N C2001 12 19.43990 07 07 14.37 +21 57 41.9 18.2 704
K01XP4N C2001 12 19.45511 07 07 13.67 +21 57 39.2 18.0 704
K01XP4N C2001 12 20.45154 07 06 33.17 +21 55 37.0 18.1 704
K01XP4N C2001 12 20.46694 07 06 32.54 +21 55 30.7 18.4 704
K01XP4N C2001 12 20.48226 07 06 31.78 +21 55 27.1 18.5 704
K01XP4N C2001 12 20.51301 07 06 30.36 +21 55 22.9 18.4 704
K01XP4N C2001 12 20.54009 07 06 29.72 +21 55 24.2 17.6 R 568
K01XP4N C2001 12 20.55623 07 06 28.92 +21 55 21.9 17.6 R 568
K01XP4N C2001 12 21.29508 07 05 57.55 +21 53 43.5 17.5 704
K01XP4N C2001 12 21.29547 07 05 57.49 +21 53 44.0 17.6 704
K01XP4N C2001 12 21.31010 07 05 56.76 +21 53 41.2 18.3 704
K01XP4N C2001 12 21.31049 07 05 56.75 +21 53 42.3 18.5 704
K01XP4N C2001 12 21.32513 07 05 56.00 +21 53 39.6 18.2 704
K01XP4N C2001 12 21.32551 07 05 55.95 +21 53 40.7 17.8 704
K01XP4N C2001 12 21.34049 07 05 55.21 +21 53 37.5 18.0 704
K01XP4N C2001 12 21.34087 07 05 55.23 +21 53 38.4 17.8 704
K01XP4N C2001 12 21.35554 07 05 54.47 +21 53 35.8 18.4 704
K01XP4N C2001 12 21.35593 07 05 54.45 +21 53 36.6 17.6 704
K01XP4N C2002 01 08.45086 06 44 26.34 +21 04 33.6 16.5 R 568
K01XP4N C2002 01 08.45280 06 44 26.14 +21 04 33.2 16.5 R 568
Observer details:
568 Mauna Kea. Observers S. S. Sheppard, D. C. Jewitt, J. Kleyna, D. Tholen.
Measurer S. S. Sheppard. 3.6-m Canada-France-Hawaii Telescope + CCD and
2.2-m University of Hawaii 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.
691 Steward Observatory, Kitt Peak. Observers T. H. Bressi. 0.9-m Spacewatch
telescope.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli. Measurers
J. Stuart, R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
2001 XN254 PHA 0.034
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5 MPC
M 314.48894 (2000.0) P Q
n 0.27953959 Peri. 274.39638 -0.99869259 +0.03854468
a 2.3165437 Node 267.81510 -0.02209689 -0.91782179
e 0.5615778 Incl. 1.92558 -0.04609591 -0.39511704
P 3.53 H 17.5 G 0.15 U 5
Residuals in seconds of arc
011116 691 0.2- 0.3- 011214 704 0.0 0.6+ 011220 704 1.3- 0.3+
011116 691 0.1+ 0.4- 011214 704 0.1- 0.1+ 011220 568 0.1- 0.7-
011116 691 0.0 0.3- 011217 704 0.9+ 0.6- 011220 568 0.4- 0.7-
011209 568 0.2- 0.0 011217 704 1.1+ 0.3- 011221 704 0.2+ 0.2-
011209 568 0.3- 0.0 011217 704 0.9+ 0.1+ 011221 704 0.3- 0.3+
011209 568 0.8- 0.2- 011217 704 0.9+ 0.1+ 011221 704 0.3- 0.7-
011210 704 0.2+ 0.4- 011217 704 0.8+ 0.1- 011221 704 0.1- 0.5+
011210 704 0.5+ 0.5+ 011217 568 0.2- 0.4- 011221 704 0.3- 0.4-
011210 704 0.4- 0.6- 011219 704 0.5+ 0.9+ 011221 704 0.7- 0.7+
011210 704 0.2- 0.1- 011219 704 0.2+ 0.7+ 011221 704 0.5- 0.5-
011213 644 0.0 0.2- 011219 704 0.1+ 0.5+ 011221 704 0.1+ 0.4+
011213 644 0.1+ 0.1- 011219 704 0.3+ 0.5+ 011221 704 0.2- 0.3-
011213 644 0.1+ 0.2- 011219 704 0.2- 0.0 011221 704 0.2- 0.6+
011214 704 0.5+ 0.2+ 011220 704 (1.5- 5.1+) 020108 568 0.2+ 0.4-
011214 704 0.4+ 0.3+ 011220 704 0.3- 1.1+ 020108 568 0.2+ 0.4-
011214 704 0.2+ 0.1+ 011220 704 1.0- 0.2-
Ephemeris:
2001 XN254 a,e,i = 2.32, 0.56, 2 q = 1.0156
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2002 01 06 06 48.20 +21 12.9 0.438 1.421 175.4 3.2 16.8
2002 01 11 06 40.33 +20 55.1 0.406 1.383 168.7 8.0 16.8
2002 01 16 06 31.84 +20 33.8 0.377 1.347 161.6 13.3 16.8
2002 01 21 06 23.13 +20 08.9 0.352 1.311 154.5 18.9 16.8
2002 01 26 06 14.67 +19 40.3 0.331 1.276 147.4 24.5 16.8
2002 01 31 06 06.89 +19 08.4 0.312 1.242 140.5 30.3 16.7
2002 02 05 06 00.17 +18 33.7 0.295 1.209 133.9 36.0 16.7
2002 02 10 05 54.86 +17 56.7 0.279 1.178 127.5 41.6 16.7
2002 02 15 05 51.24 +17 17.8 0.265 1.149 121.6 47.1 16.7
2002 02 20 05 49.49 +16 36.9 0.250 1.122 116.1 52.3 16.7
2002 02 25 05 49.72 +15 53.4 0.236 1.097 111.1 57.3 16.6
2002 03 02 05 51.95 +15 05.8 0.221 1.075 106.7 62.0 16.6
2002 03 07 05 56.27 +14 12.2 0.205 1.056 102.7 66.4 16.5
2002 03 12 06 02.86 +13 10.0 0.188 1.041 99.3 70.4 16.4
2002 03 17 06 12.06 +11 54.9 0.170 1.029 96.7 73.9 16.3
2002 03 22 06 24.44 +10 20.5 0.152 1.021 94.9 76.6 16.1
2002 03 27 06 40.94 +08 17.1 0.134 1.016 94.2 78.2 15.9
2002 04 01 07 03.17 +05 29.8 0.116 1.016 95.2 78.3 15.6
2002 04 06 07 33.91 +01 36.5 0.098 1.020 98.5 76.0 15.2
2002 04 11 08 17.37 -03 49.2 0.084 1.028 105.4 70.1 14.6
2002 04 16 09 18.04 -10 50.8 0.074 1.039 116.8 59.6 14.1
2002 04 21 10 34.78 -18 03.5 0.072 1.054 131.5 45.5 13.6
2002 04 26 11 53.93 -22 56.6 0.079 1.073 145.7 31.9 13.5
2002 05 01 12 59.15 -24 50.8 0.094 1.094 156.1 21.9 13.6
2002 05 06 13 46.06 -24 58.6 0.115 1.119 162.5 15.7 13.9
2002 05 11 14 18.54 -24 25.3 0.139 1.145 166.2 12.2 14.2
2002 05 16 14 41.35 -23 41.9 0.167 1.174 167.7 10.6 14.6
2002 05 21 14 57.96 -23 00.4 0.197 1.205 167.5 10.5 15.0
2002 05 26 15 10.57 -22 24.6 0.230 1.238 166.0 11.4 15.5
2002 05 31 15 20.56 -21 55.2 0.266 1.271 163.7 12.9 15.9
2002 06 05 15 28.84 -21 31.8 0.305 1.306 160.9 14.7 16.3
2002 06 10 15 36.03 -21 14.0 0.346 1.342 157.8 16.6 16.7
2002 06 15 15 42.58 -21 01.4 0.391 1.379 154.5 18.5 17.1
2002 06 20 15 48.78 -20 53.3 0.439 1.416 151.1 20.3 17.5
2002 06 25 15 54.81 -20 49.0 0.490 1.454 147.7 21.9 17.8
2002 06 30 16 00.78 -20 48.0 0.543 1.492 144.3 23.4 18.2
2002 07 05 16 06.79 -20 49.5 0.600 1.530 140.9 24.8 18.5
2002 07 10 16 12.89 -20 53.1 0.660 1.568 137.5 25.9 18.8
2002 07 15 16 19.14 -20 58.5 0.723 1.607 134.2 27.0 19.0
2002 07 20 16 25.56 -21 05.2 0.789 1.645 131.0 27.8 19.3
2002 07 25 16 32.15 -21 12.8 0.858 1.683 127.7 28.5 19.6
2002 07 30 16 38.90 -21 20.8 0.929 1.721 124.5 29.1 19.8
2002 08 04 16 45.82 -21 29.1 1.003 1.759 121.3 29.5 20.0
2002 08 09 16 52.91 -21 37.4 1.080 1.797 118.2 29.8 20.2
2002 08 14 17 00.17 -21 45.3 1.159 1.834 115.1 30.0 20.4
2002 08 19 17 07.58 -21 52.8 1.240 1.871 112.0 30.1 20.6
2002 08 24 17 15.13 -21 59.6 1.323 1.908 109.0 30.1 20.8
2002 08 29 17 22.80 -22 05.5 1.408 1.945 105.9 30.0 21.0
2002 09 03 17 30.59 -22 10.4 1.494 1.981 102.9 29.8 21.1
2002 09 08 17 38.48 -22 14.2 1.583 2.016 99.9 29.5 21.3
2002 09 13 17 46.48 -22 16.8 1.672 2.052 96.9 29.1 21.5
2002 09 18 17 54.57 -22 18.0 1.762 2.087 93.9 28.7 21.6
2002 09 23 18 02.72 -22 17.7 1.854 2.121 90.9 28.2 21.7
2002 09 28 18 10.94 -22 16.0 1.946 2.155 87.9 27.7 21.8
2002 10 03 18 19.21 -22 12.7 2.038 2.189 84.9 27.1 22.0
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-A28
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