MPEC 1999-X33 : 1998 XY95
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M.P.E.C. 1999-X33 Issued 1999 Dec. 15, 00:18 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
1998 XY95
Revision to MPEC 1999-A23
Observations:
J98X95Y FC1999 01 18.10075 05 12 24.30 +26 41 32.2 709
J98X95Y C1999 02 09.11133 05 11 17.13 +26 39 17.6 21.2 R 709
J98X95Y C1999 02 09.13961 05 11 16.97 +26 39 17.4 21.5 R 709
J98X95Y C1999 02 09.15659 05 11 16.97 +26 39 17.6 21.3 R 709
J98X95Y C1999 02 09.19602 05 11 16.95 +26 39 18.2 22.3 R 709
J98X95Y C1999 02 09.20162 05 11 16.81 +26 39 17.7 21.8 R 709
J98X95Y C1999 02 09.24669 05 11 16.69 +26 39 17.9 21.4 R 709
J98X95Y C1999 02 09.25229 05 11 16.76 +26 39 17.7 21.5 R 709
J98X95Y FC1999 02 10.11227 05 11 15.09 +26 39 10.8 22.5 R 709
J98X95Y C1999 02 10.15723 05 11 15.04 +26 39 10.7 22.5 R 709
J98X95Y C1999 02 10.20213 05 11 14.90 +26 39 09.9 21.3 R 709
J98X95Y C1999 02 10.23580 05 11 14.85 +26 39 10.1 21.2 R 709
J98X95Y 9C1999 11 30.35300 05 22 55.21 +27 00 12.0 22.3 V 695
J98X95Y 9C1999 11 30.36009 05 22 55.17 +27 00 11.9 22.3 V 695
J98X95Y 9C1999 11 30.51407 05 22 54.36 +27 00 11.7 23.6 V 695
J98X95Y 9C1999 11 30.52117 05 22 54.33 +27 00 11.7 22.8 V 695
J98X95Y FC1999 12 13.27262 05 21 46.74 +26 59 39.6 22.9 R 709
J98X95Y C1999 12 13.31629 05 21 46.33 +26 59 38.9 22.6 R 709
J98X95Y C1999 12 13.35995 05 21 46.18 +26 59 37.9 23.1 R 709
J98X95Y C1999 12 13.40362 05 21 45.86 +26 59 38.2 22.3 R 709
Observer details:
695 Kitt Peak. Observer J. W. Parker. 4-m reflector + CCD.
709 Cloudcroft. Observer W. Offutt. 0.6-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
991130 695 0.20+ 0.02+ 991213 709 0.20+ 0.02+ MPC 33771
Orbital elements:
1998 XY95
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 337.39454 (2000.0) P Q
n 0.00201907 Peri. 84.08246 -0.65630686 -0.74966489
a 61.9966348 Node 47.31191 +0.63822407 -0.61186172
e 0.3772220 Incl. 6.65831 +0.40240692 -0.25224549
P 488 H 6.1 G 0.15 U 6
Residuals in seconds of arc
981212 950 0.4- 0.8- 990209 709 0.6+ 0.5+ 990210 709 0.5+ 0.7-
981213 950 0.4+ 0.6- 990209 709 0.7- 0.4+ 991130 695 0.1+ 0.0
981213 950 0.3+ 0.5- 990209 709 0.2- 0.7+ 991130 695 0.0 0.0
981213 950 0.1- 0.6- 990209 709 0.6+ 1.6+ 991130 695 0.0 0.1+
981214 950 0.0 0.6- 990209 709 1.1- 1.1+ 991130 695 0.1+ 0.1+
990118 709 0.5+ 0.3+ 990209 709 1.4- 1.6+ 991213 709 1.4+ 0.5+
990119 709 0.1+ 0.3- 990209 709 0.3- 1.4+ 991213 709 0.9- 0.0
990119 709 0.9- 0.2+ 990210 709 0.3+ 0.7- 991213 709 0.2+ 0.9-
990119 709 0.8+ 0.8- 990210 709 0.9+ 0.5- 991213 709 0.9- 0.4-
990119 709 0.4- 0.2+ 990210 709 0.2+ 1.1-
Ephemeris:
1998 XY95 a,e,i = 62.00, 0.38, 7 q = 38.610
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 12 18 05 21.35 +26 59.4 41.773 42.752 174.3 0.1 22.4
1999 12 28 05 20.48 +26 58.6 41.795 42.745 164.9 0.3 22.4
2000 01 07 05 19.65 +26 57.8 41.847 42.738 154.7 0.6 22.5
2000 01 17 05 18.90 +26 56.8 41.927 42.731 144.5 0.8 22.5
2000 01 27 05 18.27 +26 55.8 42.032 42.725 134.2 0.9 22.5
2000 02 06 05 17.77 +26 54.9 42.159 42.718 124.0 1.1 22.5
2000 02 16 05 17.43 +26 53.9 42.303 42.711 113.8 1.2 22.6
2000 02 26 05 17.26 +26 53.1 42.458 42.704 103.7 1.3 22.6
2000 03 07 05 17.26 +26 52.4 42.622 42.697 93.7 1.3 22.6
2000 03 17 05 17.45 +26 51.9 42.787 42.691 83.8 1.3 22.6
2000 03 27 05 17.81 +26 51.6 42.948 42.684 74.0 1.3 22.6
2000 04 06 05 18.33 +26 51.5 43.102 42.677 64.3 1.2 22.6
2000 04 16 05 19.01 +26 51.6 43.244 42.670 54.6 1.1 22.6
2000 04 26 05 19.83 +26 51.9 43.368 42.664 45.1 1.0 22.6
2000 05 06 05 20.76 +26 52.4 43.473 42.657 35.6 0.8 22.6
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-X33
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