MPEC 2001-Y41 : 2001 XR1
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M.P.E.C. 2001-Y41 Issued 2001 Dec. 24, 20:49 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
2001 XR1
Revision to MPEC 2001-X35
Observations:
K01X01R 1 1987 11 27.34861 05 40 17.83 +45 42 21.6 261
K01X01R 1 1987 11 27.40069 05 40 09.10 +45 42 20.5 261
K01X01R 1 1994 12 01.37083 06 32 07.50 +42 52 26.8 261
K01X01R 1 1994 12 01.41944 06 32 00.77 +42 52 33.9 261
K01X01R C1999 10 13.08543 20 39 35.42 +26 28 14.7 18.0 704
K01X01R C1999 10 13.10161 20 39 38.15 +26 27 52.4 18.6 704
K01X01R C1999 10 13.11747 20 39 40.97 +26 27 31.3 18.7 704
K01X01R C1999 10 13.13317 20 39 43.67 +26 27 09.3 18.5 704
K01X01R C1999 10 13.14883 20 39 46.42 +26 26 47.6 18.8 704
Observer details:
261 Palomar-DSS. Trail located and measured by DANEOPS (A. Gnadig). 1.2-m
Schmidt.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli. Measurers
J. Stuart, R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
2001 XR1
Id. DANEOPS (1987, 1994 observations)
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5 MPC
M 226.85519 (2000.0) P Q
n 0.70899935 Peri. 304.02496 -0.52757131 +0.80140368
a 1.2455815 Node 291.65358 -0.64456530 -0.59371570
e 0.5502360 Incl. 17.65074 -0.55335711 -0.07248313
P 1.39 H 17.4 G 0.15 U 4
Residuals in seconds of arc
871127 261 0.5+ 0.5+ 011210 704 0.2- 0.2+ 011214 704 (0.7- 2.3-)
871127 261 0.4- 0.1- 011210 704 0.1- 0.2- 011214 704 1.0+ 1.2-
941201 261 0.6- 0.2+ 011210 704 0.8- 0.2- 011222 704 0.4+ 1.2+
941201 261 0.8+ 0.5+ 011210 704 0.2- 0.2+ 011222 704 0.1+ 1.1+
991013 704 0.3+ 0.1- 011210 704 0.2- 0.5- 011222 704 0.5+ 0.8+
991013 704 0.7- 0.2- 011210 649 0.4- 0.2+ 011222 704 0.3+ 0.8+
991013 704 0.2+ 0.4+ 011210 649 0.5- 0.2+ 011222 704 0.1+ 0.8+
991013 704 0.1- 0.0 011210 649 0.2+ 0.2+ 011223 704 0.5- 0.4-
991013 704 0.4+ 0.1- 011211 704 0.3- 0.3+ 011223 704 0.4- 0.3-
011209 704 0.0 0.5- 011211 704 0.6- 0.1+ 011223 704 0.3- 0.3-
011209 704 0.3- 0.4- 011211 704 0.6+ 0.2+ 011223 704 0.2- 0.3-
011209 704 1.6- 0.5+ 011211 704 0.3- 0.3+ 011223 704 0.5- 0.3-
011209 704 0.3+ 0.6- 011211 704 0.4+ 0.4+ 011223 113 0.1+ 0.3-
011209 704 0.9- 0.9- 011212 670 (3.4+ 2.2-) 011223 113 0.1- 0.3+
011210 046 0.3+ 0.1+ 011212 670 1.0+ 0.2+ 011223 113 0.3- 0.1-
011210 046 0.5+ 0.0 011214 704 0.6+ 1.0- 011223 113 0.6- 0.1-
011210 046 0.1+ 0.1+ 011214 704 0.8+ 0.7- 011223 113 0.4+ 0.2-
011210 046 0.0 0.1+ 011214 704 0.9+ 1.1-
Ephemeris:
2001 XR1 a,e,i = 1.25, 0.55, 18 q = 0.5602
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 12 17 07 08.64 +38 04.9 0.621 1.571 155.8 14.9 18.2
2001 12 27 06 34.88 +37 13.3 0.536 1.509 165.9 9.1 17.6
2002 01 06 05 52.34 +34 36.2 0.479 1.442 159.7 13.7 17.4
2002 01 16 05 09.25 +29 57.9 0.449 1.369 142.7 25.8 17.5
2002 01 26 04 34.07 +24 06.3 0.444 1.290 124.6 38.9 17.7
2002 02 05 04 09.66 +18 09.1 0.454 1.205 107.9 51.1 18.0
2002 02 15 03 54.35 +12 41.5 0.468 1.115 93.0 62.2 18.2
2002 02 25 03 44.72 +07 42.6 0.478 1.020 79.7 72.8 18.4
2002 03 07 03 36.53 +02 52.7 0.478 0.920 67.3 84.1 18.6
2002 03 17 03 24.71 -02 08.8 0.468 0.819 54.6 97.6 18.8
Gareth V. Williams (C) Copyright 2001 MPC M.P.E.C. 2001-Y41
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