MPEC 2000-A15 : 1999 XA143
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M.P.E.C. 2000-A15 Issued 2000 Jan. 6, 19:34 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
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 XA143
Observations:
J99XE3A* C1999 12 14.43861 09 28 05.49 +03 56 42.6 18.6 704
J99XE3A C1999 12 14.45380 09 28 06.65 +03 56 57.3 19.0 704
J99XE3A C1999 12 14.46909 09 28 07.87 +03 57 11.6 19.1 704
J99XE3A C1999 12 14.48458 09 28 09.02 +03 57 25.3 19.1 704
J99XE3A C1999 12 14.50015 09 28 10.28 +03 57 38.0 19.1 704
J99XE3A C1999 12 15.40294 09 29 23.92 +04 11 42.8 18.3 704
J99XE3A C1999 12 15.41857 09 29 25.13 +04 11 58.1 18.9 704
J99XE3A C1999 12 15.43378 09 29 26.29 +04 12 13.1 19.1 704
J99XE3A C1999 12 15.44893 09 29 27.46 +04 12 27.3 18.8 704
J99XE3A C1999 12 15.46402 09 29 28.61 +04 12 42.6 19.2 704
J99XE3A C2000 01 04.37408 10 00 06.04 +14 38 41.8 17.2 704
J99XE3A C2000 01 04.38872 10 00 07.59 +14 39 29.7 17.3 704
J99XE3A C2000 01 04.40349 10 00 09.18 +14 40 18.2 17.7 704
J99XE3A C2000 01 04.41840 10 00 10.76 +14 41 06.2 17.9 704
J99XE3A C2000 01 04.43318 10 00 12.32 +14 41 54.3 17.4 704
J99XE3A C2000 01 05.36487 10 01 59.57 +15 34 03.3 16.8 704
J99XE3A C2000 01 05.37977 10 02 01.22 +15 34 55.3 17.6 704
J99XE3A C2000 01 05.39455 10 02 02.86 +15 35 46.2 17.6 704
J99XE3A C2000 01 05.39860 10 02 03.35 +15 36 00.3 16.8 678
J99XE3A C2000 01 05.40822 10 02 04.38 +15 36 33.0 16.9 678
J99XE3A C2000 01 05.40936 10 02 04.47 +15 36 37.5 17.5 704
J99XE3A C2000 01 05.41880 10 02 05.56 +15 37 09.8 17.1 678
J99XE3A C2000 01 05.42468 10 02 06.19 +15 37 31.0 17.9 704
J99XE3A C2000 01 05.42867 10 02 06.69 +15 37 44.6 17.2 678
J99XE3A C2000 01 05.46866 10 02 11.25 +15 40 03.1 670
J99XE3A C2000 01 05.53602 10 02 18.74 +15 43 57.6 670
J99XE3A C2000 01 05.62274 10 02 29.88 +15 49 19.6 17.2 R 422
J99XE3A C2000 01 05.62352 10 02 29.98 +15 49 22.0 17.2 R 422
J99XE3A C2000 01 05.62431 10 02 30.06 +15 49 24.8 17.1 R 422
J99XE3A C2000 01 05.92188 10 03 05.49 +16 06 35.4 587
J99XE3A C2000 01 05.92465 10 03 05.81 +16 06 45.1 587
J99XE3A C2000 01 05.93115 10 03 06.44 +16 07 08.2 557
J99XE3A C2000 01 05.93208 10 03 06.57 +16 07 11.3 17.2 V 557
J99XE3A C2000 01 05.93302 10 03 06.66 +16 07 15.0 557
J99XE3A C2000 01 05.99736 10 03 14.15 +16 11 05.6 611
J99XE3A C2000 01 06.00058 10 03 14.50 +16 11 16.8 611
J99XE3A C2000 01 06.00289 10 03 14.81 +16 11 25.9 611
J99XE3A C2000 01 06.02318 10 03 17.08 +16 12 39.6 17.0 R 046
J99XE3A C2000 01 06.02425 10 03 17.22 +16 12 43.3 046
J99XE3A C2000 01 06.02568 10 03 17.37 +16 12 48.5 046
J99XE3A C2000 01 06.02641 10 03 17.45 +16 12 51.2 046
J99XE3A C2000 01 06.06008 10 03 21.31 +16 14 51.6 17.1 R 113
J99XE3A C2000 01 06.06215 10 03 21.55 +16 14 58.8 17.0 R 113
J99XE3A C2000 01 06.06627 10 03 22.01 +16 15 13.8 17.0 R 113
J99XE3A C2000 01 06.06778 10 03 22.19 +16 15 19.4 17.0 R 113
J99XE3A C2000 01 06.06928 10 03 22.34 +16 15 24.7 17.0 R 113
J99XE3A C2000 01 06.19359 10 03 36.56 +16 22 54.6 118
J99XE3A C2000 01 06.19609 10 03 36.87 +16 23 03.7 118
J99XE3A C2000 01 06.19822 10 03 37.10 +16 23 11.4 16.4 R 118
J99XE3A C2000 01 06.31439 10 03 52.37 +16 30 19.4 651
J99XE3A C2000 01 06.31579 10 03 52.52 +16 30 24.7 17.3 V 651
J99XE3A C2000 01 06.31793 10 03 52.77 +16 30 32.5 651
J99XE3A C2000 01 06.43640 10 04 06.47 +16 37 47.8 670
J99XE3A 4C2000 01 06.49524 10 04 13.35 +16 41 24.3 673
J99XE3A 4C2000 01 06.50422 10 04 14.42 +16 42 00.2 673
J99XE3A 4C2000 01 06.51334 10 04 15.41 +16 42 35.0 673
J99XE3A C2000 01 06.53650 10 04 17.93 +16 43 56.7 670
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. 0.57-m f/5.2 reflector + CCD.
113 Volkssternwarte Drebach, Schoenbrunn. Observers G. Lehmann, J. Kandler.
0.50-m f/4.0 reflector + CCD.
118 Modra. Observers A. Galad, P. Koleny. 0.6-m f/5.5 reflector + CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observers P. Pravec, P. Kusnirak. 0.65-m f/3.6 reflector + CCD.
587 Sormano. Observers P. Sicoli, A. Testa, P. Chiavenna. 0.5-m reflector
+ CCD.
611 Starkenburg. Observers M. Busch, P. Geffert. 0.45-m f/4.4 reflector + CCD.
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
reflector + CCD.
670 Camarillo. Observer J. E. Rogers. 0.30-m f/6.7 Helin Telescope + CCD.
673 Table Mountain Observatory, Wrightwood. Observer M. Hicks. 0.6-m
reflector + CCD.
678 Fountain Hills. Observer C. W. Juels. 0.313-m f/5.44 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz, R. Huber. Measurers J. Stuart, H. Viggh,
R. Sayer, J. B. Evans. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
1999 XA143
Epoch 1999 Dec. 8.0 TT = JDT 2451520.5 Williams
M 314.30149 (2000.0) P Q
n 0.39284300 Peri. 103.86560 -0.56923415 +0.60570578
a 1.8463897 Node 116.84905 -0.75145759 -0.65765756
e 0.5825851 Incl. 38.54548 +0.33359253 -0.44789176
P 2.51 H 16.6 G 0.15
From 57 observations 1999 Dec. 14-2000 Jan. 6.
Ephemeris:
1999 XA143 a,e,i = 1.85, 0.58, 39 q = 0.7707
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 12 28 09 47.53 +09 16.7 0.621 1.461 129.7 31.2 17.7
2000 01 02 09 55.79 +12 38.9 0.544 1.417 134.2 29.8 17.3
2000 01 07 10 05.25 +17 13.1 0.472 1.373 138.4 28.4 16.9
2000 01 12 10 16.77 +23 23.9 0.408 1.328 141.9 27.2 16.5
2000 01 17 10 31.94 +31 38.8 0.353 1.283 143.0 27.5 16.1
2000 01 22 10 54.11 +42 13.5 0.311 1.238 139.6 31.0 15.9
2000 01 27 11 31.16 +54 36.6 0.287 1.192 131.0 38.6 15.8
2000 02 01 12 43.95 +66 37.1 0.282 1.147 118.7 48.9 16.0
2000 02 06 15 10.7 +73 37.9 0.295 1.102 105.6 59.5 16.3
2000 02 11 17 52.3 +71 55.8 0.322 1.058 93.8 68.5 16.7
2000 02 16 19 17.47 +66 08.5 0.358 1.015 84.0 75.5 17.0
2000 02 21 19 59.12 +60 13.2 0.400 0.973 76.1 80.4 17.4
2000 02 26 20 22.93 +54 59.0 0.444 0.933 69.6 83.9 17.6
2000 03 02 20 38.70 +50 23.9 0.489 0.896 64.4 86.1 17.8
2000 03 07 20 50.51 +46 17.6 0.533 0.862 60.2 87.3 18.0
2000 03 17 21 09.42 +38 54.8 0.618 0.808 54.2 87.4 18.2
2000 03 27 21 27.62 +32 03.4 0.696 0.776 50.8 85.2 18.2
2000 04 06 21 47.94 +25 30.7 0.763 0.773 49.8 81.3 18.3
2000 04 16 22 10.86 +19 19.5 0.819 0.797 50.6 76.8 18.4
2000 04 26 22 35.78 +13 34.9 0.863 0.846 53.2 72.2 18.4
2000 05 06 23 01.64 +08 16.7 0.894 0.913 57.0 67.9 18.5
2000 05 16 23 27.44 +03 17.8 0.915 0.992 61.8 63.9 18.7
2000 05 26 23 52.47 -01 31.5 0.927 1.079 67.4 60.1 18.8
2000 06 05 00 16.16 -06 21.3 0.932 1.168 73.6 56.4 18.8
2000 06 15 00 38.01 -11 20.8 0.933 1.259 80.4 52.7 18.9
2000 06 25 00 57.61 -16 36.4 0.933 1.349 87.5 48.8 18.9
2000 07 05 01 14.43 -22 11.3 0.935 1.438 94.8 44.8 19.0
2000 07 15 01 27.84 -28 03.9 0.942 1.524 102.2 40.7 19.0
2000 07 25 01 37.12 -34 06.4 0.957 1.608 109.2 36.6 19.0
2000 08 04 01 41.32 -40 05.7 0.984 1.689 115.4 32.9 19.1
2000 08 14 01 39.47 -45 42.7 1.024 1.768 120.4 29.6 19.2
2000 08 24 01 30.86 -50 36.0 1.080 1.843 123.5 27.2 19.3
2000 09 03 01 15.49 -54 25.6 1.152 1.915 124.7 25.7 19.5
2000 09 13 00 54.93 -56 56.5 1.239 1.985 123.9 24.9 19.7
2000 09 23 00 32.36 -58 05.3 1.341 2.051 121.5 24.7 19.9
2000 10 03 00 11.50 -57 59.3 1.454 2.115 117.8 24.7 20.2
2000 10 13 23 55.18 -56 54.4 1.579 2.176 113.3 24.9 20.4
2000 10 23 23 44.40 -55 08.2 1.712 2.234 108.3 25.0 20.7
2000 11 02 23 38.96 -52 55.5 1.853 2.290 103.0 25.0 20.9
2000 11 12 23 38.04 -50 27.1 1.998 2.343 97.5 24.8 21.1
2000 11 22 23 40.68 -47 50.6 2.146 2.393 92.0 24.4 21.3
2000 12 02 23 46.08 -45 10.5 2.296 2.441 86.4 23.8 21.5
2000 12 12 23 53.59 -42 30.0 2.444 2.486 80.9 23.0 21.6
2000 12 22 00 02.67 -39 51.0 2.591 2.529 75.4 22.1 21.7
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-A15
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