MPEC 2007-S31 : 2007 SR1
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M.P.E.C. 2007-S31 Issued 2007 Sept. 20, 17:50 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 SR1
Observations:
K07S01R* C2007 09 18.41425 01 30 26.55 +05 47 34.7 20.5 V ES031691
K07S01R C2007 09 18.43182 01 30 23.57 +05 47 36.7 20.7 V ES031691
K07S01R C2007 09 18.44692 01 30 21.09 +05 47 38.7 20.7 V ES031691
K07S01R C2007 09 19.25223 01 28 08.98 +05 49 03.9 21.7 V ES031291
K07S01R C2007 09 19.25714301 28 07.84 +05 49 02.2 20.6 ES031H55
K07S01R C2007 09 19.26081 01 28 07.50 +05 49 04.7 21.0 V ES031291
K07S01R C2007 09 19.26314201 28 06.86 +05 49 03.5 20.8 ES031H55
K07S01R C2007 09 19.26478 01 28 06.85 +05 49 05.3 21.1 V ES031291
K07S01R C2007 09 19.26902201 28 05.85 +05 49 04.0 20.6 ES031H55
K07S01R C2007 09 20.27046 01 25 16.39 +05 50 43.5 ES031291
K07S01R C2007 09 20.27431 01 25 15.69 +05 50 43.5 ES031291
K07S01R C2007 09 20.27808 01 25 15.09 +05 50 44.2 ES031291
Observer details:
291 LPL/Spacewatch II. Observer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer R. S. McMillan. 0.9-m f/3
reflector + CCD.
H55 Astronomical Research Observatory, Charleston. Observer R. Holmes.
0.81-m f/4.0 astrograph + CCD.
Orbital elements:
2007 SR1 Earth MOID = 0.3343 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 221.28298 (2000.0) P Q
n 0.91288402 Peri. 174.49335 -0.99616670 +0.05483731
a 1.0524278 Node 9.49250 -0.08731029 -0.67112933
e 0.5625628 Incl. 24.40918 +0.00536906 -0.73930934
P 1.08 H 19.3 G 0.15 U 9
Residuals in seconds of arc
070918 691 0.2+ 0.2- 070919 H55 0.4- 0.9- 070919 H55 0.3+ 0.3-
070918 691 0.4- 0.1- 070919 291 0.2- 0.0 070920 291 0.1- 0.1+
070918 691 0.3+ 0.3+ 070919 H55 0.3+ 0.2- 070920 291 0.4- 0.2-
070919 291 0.0 0.1+ 070919 291 0.2+ 0.2+ 070920 291 0.5+ 0.1+
Ephemeris:
2007 SR1 a,e,i = 1.05, 0.56, 24 q = 0.4604
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 09 17 01 34.20 +05 44.9 0.696 1.644 149.5 18.1 20.5
2007 09 27 01 04.38 +05 57.6 0.646 1.637 166.3 8.4 20.0
2007 10 07 00 29.33 +05 54.6 0.627 1.625 175.1 3.0 19.6
2007 10 17 23 54.63 +05 41.8 0.640 1.606 157.2 13.9 20.2
2007 10 27 23 25.77 +05 31.4 0.682 1.581 140.5 23.6 20.6
2007 11 06 23 05.28 +05 33.7 0.745 1.550 125.8 31.3 20.9
2007 11 16 22 53.07 +05 54.0 0.818 1.511 113.2 37.0 21.3
2007 11 26 22 47.80 +06 33.8 0.894 1.466 102.4 41.1 21.5
2007 12 06 22 47.93 +07 32.2 0.966 1.415 92.9 44.1 21.7
2007 12 16 22 52.23 +08 48.0 1.031 1.355 84.5 46.3 21.8
2007 12 26 22 59.75 +10 20.1 1.082 1.289 77.0 48.1 21.8
2008 01 05 23 09.82 +12 07.1 1.117 1.214 70.3 49.7 21.8
2008 01 15 23 22.03 +14 07.7 1.133 1.131 64.2 51.5 21.7
Sonia Keys (C) Copyright 2007 MPC M.P.E.C. 2007-S31
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