MPEC 2000-Y22: 1998 QE2
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M.P.E.C. 2000-Y22 Issued 2000 Dec. 21, 00:02 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
1998 QE2
Revision to MPEC 1998-Q19
Observations:
J98Q02E C2000 12 05.36281 05 44 01.64 +19 32 22.4 693
J98Q02E C2000 12 05.36521 05 44 01.48 +19 32 21.7 693
J98Q02E C2000 12 05.36963 05 44 01.20 +19 32 21.1 693
J98Q02E 7C2000 12 20.30494 05 27 19.12 +18 47 41.4 21.5 R 696
J98Q02E 7C2000 12 20.30917 05 27 18.86 +18 47 40.8 696
Observer details:
693 Catalina Station, Tucson. Observer C. W. Hergenrother. 1.5-m reflector
+ CCD.
696 Whipple Observatory, Mt. Hopkins. Observer T. B. Spahr. 1.2-m reflector
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
001205 693 40.3- 5.5+ 001220 696 39.5- 5.0+ MPC 32759 +0.062 day
Orbital elements:
1998 QE2
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Williams
M 284.26008 (2000.0) P Q
n 0.26041585 Peri. 345.35610 -0.55729890 +0.80372495
a 2.4286099 Node 250.36632 -0.73781071 -0.59450129
e 0.5675748 Incl. 12.78533 -0.38085863 -0.02438073
P 3.78 H 16.5 G 0.15 U 3
Residuals in seconds of arc
980819 704 1.7+ 1.4+ 980822 402 0.9+ 0.1- 980909 046 0.1- 0.2+
980819 704 1.4+ 1.2+ 980822 402 0.5- 0.5- 980909 046 0.9+ 0.0
980819 704 (2.3+ 0.9-) 980823 658 0.2- 0.0 980909 046 0.2- 0.2+
980819 704 1.2- 0.2+ 980823 658 0.3- 0.0 980909 046 0.3- 0.1-
980819 557 0.7+ 0.3+ 980823 658 0.4- 0.1- 980912 402 (1.0- 2.7-)
980819 557 0.2- 0.4- 980824 658 0.5- 0.1- 980912 402 1.4- 0.5-
980820 046 1.4- 0.8- 980824 658 0.4- 0.2- 980912 402 1.5- 1.1-
980820 046 0.5- 0.3- 980824 658 0.1- 0.1- 980915 587 0.6+ 0.3-
980820 046 0.1- 0.4- 980825 658 0.1+ 0.1+ 980915 587 0.2+ 1.0-
980820 046 0.5- 0.2- 980825 658 0.7- 0.2- 980915 587 0.1+ 0.9+
980820 046 0.3- 0.1- 980825 658 0.4- 0.4- 980916 360 0.4- 0.5+
980820 046 0.0 0.4- 980825 360 0.1+ 0.0 980916 360 0.2+ 0.1-
980820 046 0.1+ 0.1- 980825 360 0.4+ 0.3+ 980916 360 0.6- 0.5-
980820 402 0.3+ 0.6- 980825 360 0.6+ 0.3+ 980920 557 0.4+ 0.0
980820 402 0.2- 0.2- 980825 587 0.7- 0.8- 980920 557 0.1- 0.3+
980820 402 0.1- 0.6- 980825 587 1.0+ 0.2+ 980923 658 0.2- 0.2+
980820 557 0.8+ 0.2- 980825 557 0.1+ 0.2+ 980923 658 0.7- 0.1-
980820 557 0.1- 0.7- 980825 557 0.0 0.2+ 980923 658 0.1+ 0.0
980820 557 0.5- 0.7+ 980825 557 0.0 0.3+ 980923 046 0.2+ 0.1+
980822 658 0.3- 0.1- 980826 658 0.1+ 0.3- 980923 046 0.3+ 0.3+
980822 658 0.1- 0.2- 980826 658 0.7- 0.7+ 980923 046 0.7+ 0.3+
980822 658 0.4- 0.1+ 980826 658 0.2- 0.4+ 001205 693 0.1- 0.1+
980822 426 0.3- 0.2+ 980827 704 1.3+ 1.6+ 001205 693 0.2- 0.1-
980822 426 0.5+ 0.4+ 980827 704 1.9+ 0.9- 001205 693 0.0 0.0
980822 426 0.8- 0.5+ 980827 704 (2.2- 1.4-) 001220 696 0.1- 0.1-
980822 402 0.1+ 0.4- 980827 704 1.4+ 0.8+ 001220 696 0.4+ 0.0
Ephemeris:
1998 QE2 a,e,i = 2.43, 0.57, 13 q = 1.0502
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 12 12 05 36.76 +19 12.7 2.324 3.305 174.1 1.8 21.1
2000 12 22 05 25.39 +18 42.6 2.295 3.269 170.3 2.9 21.2
2001 01 01 05 14.41 +18 13.5 2.299 3.231 158.0 6.5 21.4
2001 01 11 05 04.77 +17 47.5 2.332 3.192 145.7 10.0 21.5
2001 01 21 04 57.17 +17 26.3 2.390 3.152 133.7 13.0 21.6
2001 01 31 04 52.05 +17 11.4 2.469 3.110 122.4 15.5 21.8
2001 02 10 04 49.57 +17 03.1 2.562 3.067 111.7 17.4 21.9
2001 02 20 04 49.69 +17 00.8 2.663 3.022 101.7 18.7 22.0
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-Y22
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