MPEC 1999-R08 : 1994 WZ2
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M.P.E.C. 1999-R08 Issued 1999 Sept. 3, 17:36 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 ISSN 1523-6714
1994 WZ2
Revision to MPEC 1994-X10
Observations:
J94W02Z 1C1999 08 30.65515 23 59 19.48 -36 07 23.1 413
J94W02Z 1C1999 08 30.65792 23 59 19.39 -36 07 25.4 413
J94W02Z 1C1999 08 31.47696 23 59 01.39 -36 23 06.5 413
J94W02Z 1C1999 08 31.47974 23 59 01.33 -36 23 09.9 413
Observer details:
413 Siding Spring. Observer R. H. McNaught. 1.0-m f/8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
990830 413 1.06- 0.28- 990831 413 1.06- 0.28- MPC 24915 +1.3 day
Orbital elements:
1994 WZ2
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 330.55156 (2000.0) P Q
n 0.19396125 Peri. 324.97749 +0.43145427 -0.84871569
a 2.9556935 Node 97.68617 +0.88203391 +0.32569866
e 0.5541129 Incl. 17.97473 +0.18937632 +0.41665581
P 5.08 H 17.8 G 0.15 U 2
Residuals in seconds of arc
941127 413 (0.3+ 4.0-) 941220 413 1.0- 0.2+ 941227 360 0.3+ 1.0+
941127 413 0.5- 1.6- 941221 413 0.3- 0.3- 950101 587 0.1+ 0.0
941202 413 0.6+ 1.3+ 941221 413 0.3- 0.4- 950101 587 0.2+ 0.3-
941206 422 0.9+ 0.2- 941222 413 0.1+ 1.4- 950113 413 0.7+ 0.1+
941206 422 1.5+ 0.5+ 941222 413 0.1+ 1.0- 950113 413 0.6+ 0.2+
941210 413 0.8+ 0.4+ 941222 360 0.5- 1.4- 950115 413 0.9+ 0.4-
941218 413 0.5- 0.8+ 941222 360 0.2+ 0.8- 950115 413 0.6- 0.2-
941218 413 0.6- 0.4+ 941222 360 0.3+ 1.0- 990830 413 0.3+ 0.5-
941218 413 0.1- 0.7+ 941222 413 0.2+ 0.0 990830 413 0.1+ 0.4+
941218 413 0.6- 0.9+ 941222 413 0.0 0.0 990831 413 0.2- 0.0
941219 413 1.0- 0.7+ 941222 413 0.3+ 0.5- 990831 413 0.1- 0.1-
941219 413 0.9- 0.6+ 941227 360 0.2- 0.9+
941220 413 0.8- 0.2+ 941227 360 0.4+ 0.6+
Ephemeris:
1994 WZ2 a,e,i = 2.96, 0.55, 18 q = 1.3179
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 08 30 23 59.56 -35 54.7 0.973 1.899 146.7 17.0 20.0
1999 09 09 23 54.49 -38 59.4 0.915 1.834 145.0 18.4 19.9
1999 09 19 23 46.68 -41 31.5 0.876 1.769 140.2 21.3 19.8
1999 09 29 23 37.68 -43 10.8 0.853 1.706 133.7 25.1 19.8
1999 10 09 23 29.55 -43 44.9 0.841 1.645 126.5 29.2 19.8
1999 10 19 23 24.45 -43 10.5 0.839 1.587 119.5 33.1 19.8
1999 10 29 23 23.81 -41 32.4 0.841 1.532 113.0 36.6 19.8
1999 11 08 23 28.11 -38 57.4 0.846 1.481 107.2 39.7 19.9
1999 11 18 23 37.17 -35 31.7 0.853 1.436 102.2 42.3 19.9
1999 11 28 23 50.39 -31 20.7 0.861 1.397 98.0 44.4 19.9
1999 12 08 00 07.07 -26 28.6 0.871 1.364 94.5 46.0 19.9
1999 12 18 00 26.62 -21 00.2 0.883 1.340 91.6 47.2 19.9
1999 12 28 00 48.51 -15 02.6 0.900 1.325 89.3 47.9 20.0
2000 01 07 01 12.39 -08 45.3 0.924 1.318 87.4 48.2 20.0
2000 01 17 01 38.06 -02 20.4 0.958 1.321 85.7 47.9 20.1
2000 01 27 02 05.35 +03 57.9 1.002 1.333 84.3 47.3 20.2
2000 02 06 02 34.13 +09 56.0 1.059 1.355 82.9 46.2 20.3
2000 02 16 03 04.34 +15 22.0 1.129 1.384 81.4 44.9 20.5
2000 02 26 03 35.76 +20 06.9 1.211 1.421 79.7 43.3 20.7
2000 03 07 04 08.16 +24 05.5 1.304 1.464 77.9 41.5 20.8
2000 03 17 04 41.23 +27 16.1 1.409 1.513 75.8 39.6 21.0
2000 03 27 05 14.53 +29 39.5 1.523 1.567 73.6 37.7 21.2
2000 04 06 05 47.64 +31 18.4 1.645 1.624 71.0 35.7 21.4
2000 04 16 06 20.13 +32 17.2 1.774 1.684 68.3 33.6 21.6
2000 04 26 06 51.61 +32 40.8 1.908 1.746 65.3 31.6 21.8
2000 05 06 07 21.84 +32 34.4 2.046 1.810 62.1 29.5 21.9
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-R08
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