MPEC 2010-P37 : 2007 RN7
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M.P.E.C. 2010-P37 Issued 2010 Aug. 7, 20:23 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.minorplanetcenter.org/iau/mpc.html ISSN 1523-6714
2007 RN7
Revision to MPEC 2007-R33
Additional Observations:
K07R07N KC2010 08 06.34847801 42 21.04 +10 22 09.1 22.3 V EP037H21
K07R07N KC2010 08 06.36371801 42 24.10 +10 22 04.0 22.2 V EP037H21
K07R07N KC2010 08 06.38446801 42 28.27 +10 21 57.3 22.4 V EP037H21
K07R07N KC2010 08 07.35482601 45 50.80 +10 16 45.7 22.0 V EP037H21
K07R07N KC2010 08 07.37069101 45 54.00 +10 16 40.3 22.3 V EP037H21
K07R07N KC2010 08 07.38775701 45 57.45 +10 16 34.7 22.1 V EP037H21
Observer details:
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers R. Holmes, H. Devore. 0.81-m f/4.0 astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
100806 H21 55.4+ 8.2+ 100807 H21 54.8+ 6.6+ MPO167689 -0.0094 day
Orbital elements:
2007 RN7 Earth MOID = 0.1764 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC
M 308.08266 (2000.0) P Q
n 0.66678842 Peri. 232.40524 +0.90048280 -0.42775162
a 1.2976095 Node 152.65878 +0.43303216 +0.86524169
e 0.1122513 Incl. 9.83871 +0.04017306 +0.26150598
P 1.48 H 21.6 G 0.15 U 1
Residuals in seconds of arc
070823 691 0.4+ 0.0 070908 703 0.8+ 0.8- 080104 568 0.1+ 0.8+
070823 691 0.0 0.1- 070908 703 0.5+ 0.2+ 080104 568 0.5+ 1.2+
070823 691 1.4- 1.5- 070908 703 0.2- 0.5+ 080104 568 0.1- 0.5-
070905 703 1.3+ 0.5+ 070908 703 1.1+ 1.3+ 080108 568 0.1- 0.0
070905 703 0.9+ 0.4+ 070908 703 1.0+ 0.3+ 080108 568 0.0 0.1-
070905 703 0.1- 1.2+ 070908 703 0.4- 0.4- 080109 568 0.0 0.0
070905 703 0.4- 0.8+ 070912 A78 0.9- 0.8- 080109 568 0.0 0.0
070905 703 0.0 0.1+ 070912 A78 1.1- 0.8- 100806 H21 0.6+ 1.7+
070905 703 (2.0+ 0.7+) 070912 A78 0.8- 0.4- 100806 H21 0.2+ 1.1+
070905 703 0.9+ 0.6+ 070922 E12 0.7+ 0.0 100806 H21 0.1- 0.5+
070905 703 0.4+ 0.1+ 070922 E12 0.2- 0.0 100807 H21 0.2- 0.1-
070908 703 0.7+ 1.2+ 071009 E12 0.3+ 0.3- 100807 H21 0.4- 0.2-
070908 703 0.4- 0.7+ 071009 E12 0.0 0.1+ 100807 H21 0.4- 0.2-
Ephemeris:
2007 RN7 a,e,i = 1.30, 0.11, 10 q = 1.1520
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 08 02 01 27.32 +10 39.0 0.433 1.204 105.3 54.4 22.2
2010 08 12 02 02.05 +09 44.6 0.394 1.191 107.2 54.4 21.9
2010 08 22 02 37.12 +07 51.0 0.360 1.179 109.1 54.1 21.7
2010 09 01 03 11.65 +04 56.4 0.331 1.169 110.9 53.7 21.5
2010 09 11 03 44.38 +01 05.3 0.309 1.162 112.7 53.1 21.3
2010 09 21 04 14.04 -03 28.8 0.292 1.156 114.5 52.3 21.2
2010 10 01 04 39.54 -08 26.6 0.280 1.153 116.2 51.2 21.0
2010 10 11 04 59.74 -13 26.4 0.272 1.152 118.1 49.8 20.9
2010 10 21 05 13.80 -18 03.8 0.267 1.154 120.3 48.1 20.9
2010 10 31 05 21.25 -21 57.1 0.265 1.158 122.8 46.1 20.8
2010 11 10 05 21.76 -24 44.0 0.264 1.165 125.7 43.7 20.7
2010 11 20 05 16.14 -26 00.2 0.266 1.173 128.8 41.0 20.7
2010 11 30 05 06.35 -25 28.8 0.271 1.184 131.8 38.4 20.7
2010 12 10 04 55.19 -23 02.3 0.280 1.196 134.0 36.3 20.7
2010 12 20 04 46.00 -18 52.5 0.295 1.210 134.9 35.2 20.8
2010 12 30 04 41.02 -13 31.3 0.318 1.225 133.9 35.3 21.0
2011 01 09 04 41.23 -07 35.7 0.349 1.241 131.2 36.6 21.3
2011 01 19 04 46.79 -01 40.9 0.389 1.258 127.3 38.5 21.6
2011 01 29 04 57.07 +03 48.7 0.436 1.275 122.8 40.5 21.9
2011 02 08 05 11.42 +08 40.2 0.492 1.292 117.9 42.4 22.3
2011 02 18 05 29.19 +12 47.8 0.554 1.309 113.1 44.0 22.6
2011 02 28 05 49.67 +16 10.6 0.621 1.325 108.5 45.1 22.9
2011 03 10 06 12.34 +18 50.2 0.693 1.341 104.0 45.9 23.2
Carl W. Hergenrother (C) Copyright 2010 MPC M.P.E.C. 2010-P37
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