MPEC 2007-Y55 : 2007 YX1
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M.P.E.C. 2007-Y55 Issued 2007 Dec. 30, 18:26 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 YX1
Revision to MPEC 2007-Y31
Additional Observations:
K07Y01X KC2002 09 03.48783 00 28 43.57 +16 39 31.5 21.0 R EY055644
K07Y01X KC2002 09 12.51200 00 20 14.29 +17 02 34.6 21.2 R EY055644
K07Y01X C2002 10 03.24030 23 54 36.08 +16 54 22.6 EY055644
K07Y01X C2002 10 03.26159 23 54 34.30 +16 54 18.5 20.6 R EY055644
K07Y01X C2002 10 03.29811 23 54 31.29 +16 54 13.2 20.4 R EY055644
Observer details:
644 Palomar Mountain/NEAT. Observers R. Bambery, E. Helin, S. Pravdo,
M. Hicks, K. Lawrence, R. Thicksten. Measurer R. J. Bouma. 1.2-m Schmidt
+ CCD.
Orbital elements:
2007 YX1 Earth MOID = 0.2035 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 333.93862 (2000.0) P Q
n 0.20456235 Peri. 152.77741 -0.57640426 -0.80627874
a 2.8526747 Node 331.81055 +0.68916437 -0.39222327
e 0.5920950 Incl. 16.34488 +0.43910205 -0.44280412
P 4.82 H 17.2 G 0.15 U 3
Residuals in seconds of arc
020903 644 0.4+ 0.1+ 071218 A21 0.1+ 0.2- 071221 198 0.4- 0.0
020912 644 0.1+ 0.5- 071218 A21 0.0 0.2+ 071221 198 0.2- 0.0
021003 644 0.2+ 0.5+ 071218 595 0.4+ 0.4+ 071221 198 0.2- 0.1+
021003 644 0.1- 0.5- 071218 595 1.0- 1.4+ 071221 198 0.2- 0.1+
021003 644 0.1- 0.3- 071218 H55 0.1+ 0.0 071224 448 0.3+ 0.4-
071021 703 0.2- 0.5+ 071219 H55 0.0 0.0 071224 448 0.1- 0.5-
071021 703 0.5- 0.3- 071219 H55 0.2- 0.2- 071224 448 0.0 0.2-
071021 703 0.6+ 0.4+ 071219 711 0.1- 0.1+ 071226 A78 0.2+ 1.0-
071021 703 0.1+ 0.2+ 071219 G96 0.1+ 0.4- 071226 A78 0.2+ 0.4-
071218 703 0.2+ 0.1- 071219 G96 0.2- 0.4- 071226 A78 0.3+ 0.2-
071218 703 0.4- 0.0 071219 711 0.1- 0.4+ 071226 A78 0.0 0.3-
071218 703 0.0 0.1- 071219 G96 0.1- 0.3- 071229 H45 0.3- 0.1+
071218 703 0.3+ 0.2- 071219 G96 0.1+ 0.5- 071229 H45 0.6+ 0.1+
071218 461 0.1- 0.0 071219 711 0.3- 0.2+ 071229 H45 0.8+ 0.2+
071218 461 0.2- 0.1+ 071221 143 0.3+ 0.9+ 071229 H45 0.2+ 0.0
071218 461 0.2- 0.1+ 071221 143 0.6+ 0.1- 071229 H45 0.3+ 0.1+
071218 A21 0.4- 0.2+ 071221 143 0.4- 0.3+
Ephemeris:
2007 YX1 a,e,i = 2.85, 0.59, 16 q = 1.1636
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 00 31.18 +37 28.5 0.769 1.413 106.8 41.8 19.0
2008 01 05 00 45.59 +36 53.8 0.764 1.352 100.6 45.6 19.0
2008 01 15 01 06.65 +36 37.5 0.756 1.297 95.5 49.0 19.0
2008 01 25 01 34.20 +36 32.2 0.745 1.249 91.4 52.0 19.0
2008 02 04 02 08.15 +36 24.5 0.732 1.211 88.3 54.5 18.9
2008 02 14 02 48.28 +35 57.8 0.719 1.183 86.2 56.4 18.9
2008 02 24 03 33.71 +34 52.7 0.709 1.167 85.1 57.6 18.9
2008 03 05 04 22.73 +32 52.1 0.706 1.164 84.8 58.1 18.9
2008 03 15 05 13.02 +29 49.0 0.714 1.174 85.1 57.6 18.9
2008 03 25 06 02.11 +25 50.0 0.736 1.196 85.9 56.3 19.0
2008 04 04 06 48.16 +21 13.9 0.774 1.229 86.7 54.3 19.1
2008 04 14 07 30.39 +16 23.9 0.830 1.273 87.4 51.9 19.2
2008 04 24 08 08.71 +11 39.5 0.902 1.324 87.8 49.4 19.4
2008 05 04 08 43.47 +07 13.0 0.990 1.383 87.6 46.8 19.7
2008 05 14 09 15.24 +03 09.3 1.092 1.447 86.8 44.2 19.9
2008 05 24 09 44.52 -00 30.9 1.206 1.514 85.6 41.8 20.1
2008 06 03 10 11.77 -03 49.4 1.332 1.585 83.8 39.5 20.4
2008 06 13 10 37.42 -06 49.3 1.467 1.657 81.6 37.3 20.6
2008 06 23 11 01.75 -09 33.4 1.609 1.731 79.0 35.2 20.9
2008 07 03 11 25.01 -12 03.9 1.759 1.806 76.0 33.1 21.1
2008 07 13 11 47.44 -14 23.3 1.913 1.881 72.7 31.1 21.3
2008 07 23 12 09.18 -16 32.8 2.072 1.955 69.1 29.0 21.5
2008 08 02 12 30.37 -18 33.7 2.233 2.030 65.3 27.0 21.7
2008 08 12 12 51.14 -20 26.9 2.395 2.103 61.2 25.0 21.9
Gareth V. Williams (C) Copyright 2007 MPC M.P.E.C. 2007-Y55
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