MPEC 1998-W12: 1998 WM
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M.P.E.C. 1998-W12 Issued 1998 Nov. 18, 17:50 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1998 WM
Observations:
J98W00M* C1998 11 16.30558 05 02 01.71 +40 50 48.5 18.6 704
J98W00M C1998 11 16.32689 05 01 58.20 +40 51 27.0 18.5 704
J98W00M C1998 11 16.34803 05 01 54.81 +40 52 04.9 18.2 704
J98W00M C1998 11 16.36912 05 01 51.33 +40 52 42.8 18.3 704
J98W00M C1998 11 16.39013 05 01 47.76 +40 53 22.6 18.8 704
J98W00M C1998 11 17.33094 04 59 15.74 +41 22 12.6 734
J98W00M C1998 11 17.33101 04 59 15.90 +41 22 14.6 711
J98W00M C1998 11 17.33541 04 59 14.99 +41 22 20.6 734
J98W00M C1998 11 17.33640 04 59 14.95 +41 22 24.8 711
J98W00M C1998 11 17.34182 04 59 14.13 +41 22 33.8 711
J98W00M C1998 11 17.82963 04 57 53.21 +41 37 19.1 17.1 V 596
J98W00M C1998 11 17.84336 04 57 50.83 +41 37 46.0 596
J98W00M C1998 11 17.87264 04 57 45.70 +41 38 40.1 106
J98W00M C1998 11 17.88589 04 57 43.42 +41 39 04.9 106
J98W00M C1998 11 17.89874 04 57 41.16 +41 39 28.5 106
J98W00M C1998 11 17.94411 04 57 33.24 +41 40 52.2 106
J98W00M C1998 11 18.10940 04 57 04.10 +41 45 52.9 16.6 V 046
J98W00M C1998 11 18.11075 04 57 03.88 +41 45 55.5 046
J98W00M C1998 11 18.11207 04 57 03.63 +41 45 57.9 046
J98W00M C1998 11 18.11321 04 57 03.48 +41 45 59.9 046
J98W00M C1998 11 18.40182 04 56 13.66 +41 54 51.1 711
J98W00M C1998 11 18.40723 04 56 12.68 +41 55 00.7 711
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
106 Crni Vrh. Observers H. Mikuz, S. Maticic. 0.36-m f/6.7
Schmidt-Cassegrain + CCD.
596 Colleverde di Guidonia. Observer V. S. Casulli. 0.40-m f/2.95 reflector
+ CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
711 McDonald Observatory. Observers P. J. Shelus, J. G. Ries. 0.76-m
reflector + CCD.
734 Farpoint Observatory. Observer G. Hug. 0.30-m Schmidt-Cassegrain + CCD.
Orbital elements:
1998 WM
Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 Williams
M 214.82788 (2000.0) P Q
n 0.72707201 Peri. 172.99734 -0.77396453 +0.57116738
a 1.2248543 Node 45.68865 -0.59793116 -0.51705880
e 0.3094374 Incl. 22.46253 -0.20846401 -0.63750923
P 1.36 H 16.3 G 0.15
From 22 observations 1998 Nov. 16-18.
Ephemeris:
1998 WM a,e,i = 1.22, 0.31, 22 q = 0.8458
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 11 13 05 10.00 +39 08.9 0.618 1.544 146.7 20.6 17.2
1998 11 18 04 57.39 +41 42.6 0.592 1.534 151.1 18.2 17.0
1998 11 23 04 41.56 +44 10.6 0.571 1.522 154.1 16.5 16.9
1998 11 28 04 22.71 +46 24.3 0.557 1.510 154.8 16.2 16.8
1998 12 03 04 01.53 +48 15.4 0.550 1.496 152.9 17.5 16.8
1998 12 08 03 39.09 +49 38.0 0.548 1.482 148.9 20.1 16.9
1998 12 13 03 16.81 +50 30.1 0.553 1.467 143.7 23.4 17.0
1998 12 18 02 56.11 +50 54.4 0.563 1.451 137.9 27.1 17.1
1998 12 23 02 38.10 +50 56.8 0.576 1.435 132.0 30.7 17.2
1998 12 28 02 23.37 +50 45.1 0.593 1.417 126.2 34.1 17.3
1999 01 02 02 12.07 +50 26.0 0.613 1.399 120.7 37.2 17.5
1999 01 07 02 04.02 +50 05.1 0.633 1.380 115.5 40.0 17.6
1999 01 12 01 58.96 +49 46.1 0.654 1.360 110.6 42.6 17.7
1999 01 17 01 56.56 +49 31.5 0.675 1.339 106.2 44.9 17.8
1999 01 22 01 56.53 +49 22.7 0.695 1.318 102.0 46.9 17.9
1999 01 27 01 58.55 +49 20.4 0.714 1.296 98.2 48.8 18.0
1999 02 01 02 02.40 +49 24.6 0.731 1.273 94.6 50.5 18.0
1999 02 06 02 07.88 +49 34.6 0.746 1.250 91.3 52.1 18.1
1999 02 11 02 14.87 +49 49.8 0.759 1.226 88.2 53.6 18.1
1999 02 21 02 33.06 +50 32.4 0.775 1.177 82.8 56.4 18.1
1999 03 03 02 56.54 +51 24.3 0.779 1.127 78.1 59.4 18.1
1999 03 13 03 25.14 +52 13.9 0.768 1.077 74.1 62.6 18.1
1999 03 23 03 58.87 +52 47.1 0.744 1.027 70.6 66.3 18.1
1999 04 02 04 37.29 +52 45.3 0.704 0.979 67.6 70.7 18.0
1999 04 12 05 19.18 +51 44.5 0.652 0.936 64.9 75.9 17.9
1999 04 22 06 02.33 +49 15.9 0.588 0.899 62.4 82.2 17.8
1999 05 02 06 43.53 +44 45.7 0.517 0.870 59.7 89.5 17.7
1999 05 12 07 19.49 +37 32.5 0.444 0.852 56.7 97.5 17.7
1999 05 22 07 47.95 +26 49.4 0.376 0.846 53.7 105.3 17.7
1999 06 01 08 07.71 +12 04.4 0.324 0.853 51.8 110.8 17.7
1999 06 11 08 18.89 -05 50.0 0.297 0.871 53.4 110.8 17.6
1999 06 21 08 22.75 -23 54.8 0.297 0.901 59.2 104.4 17.3
1999 07 01 08 20.93 -39 15.7 0.317 0.939 66.9 95.0 17.1
1999 07 11 08 15.28 -51 14.1 0.348 0.982 74.5 85.6 17.0
1999 07 21 08 06.90 -60 45.1 0.380 1.030 81.4 77.2 17.0
1999 07 31 07 54.29 -68 53.6 0.411 1.080 87.7 69.9 17.0
1999 08 10 07 29.6 -76 24.6 0.441 1.130 93.6 63.5 17.0
1999 08 20 06 05.8 -83 20.8 0.470 1.181 99.0 57.8 17.1
1999 08 30 00 33.9 -84 42.0 0.501 1.229 103.8 52.9 17.2
1999 09 09 22 25.1 -77 47.9 0.537 1.276 107.5 48.8 17.3
1999 09 19 22 00.18 -69 39.8 0.581 1.321 109.9 45.7 17.5
1999 09 29 21 56.36 -61 30.1 0.635 1.362 110.7 43.5 17.7
1999 10 09 22 00.18 -53 40.3 0.700 1.401 109.8 42.1 17.9
1999 10 19 22 07.93 -46 21.8 0.777 1.437 107.6 41.4 18.2
1999 10 29 22 18.04 -39 39.8 0.864 1.469 104.3 40.9 18.4
1999 11 08 22 29.68 -33 33.9 0.960 1.498 100.3 40.6 18.7
1999 11 18 22 42.50 -28 00.9 1.064 1.524 95.8 40.2 18.9
1999 11 28 22 56.19 -22 56.6 1.172 1.546 91.0 39.7 19.2
1999 12 08 23 10.59 -18 16.1 1.284 1.564 86.1 38.9 19.4
1999 12 18 23 25.63 -13 55.4 1.397 1.579 81.1 38.0 19.5
1999 12 28 23 41.21 -09 50.8 1.509 1.591 76.1 36.9 19.7
2000 01 07 23 57.32 -05 59.4 1.619 1.599 71.1 35.6 19.8
2000 01 17 00 13.97 -02 18.7 1.724 1.603 66.2 34.1 19.9
2000 01 27 00 31.16 +01 12.8 1.824 1.604 61.3 32.6 20.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-W12
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