MPEC 2007-J31 : 2007 JW2
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M.P.E.C. 2007-J31 Issued 2007 May 10, 18:31 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 JW2
Observations:
K07J02W* C2007 05 07.59725 15 30 07.39 -16 33 10.3 18.6 R EJ031D29
K07J02W C2007 05 07.61661 15 30 03.78 -16 33 13.0 19.1 R EJ031D29
K07J02W C2007 05 07.63422 15 30 00.46 -16 33 15.9 19.3 R EJ031D29
K07J02W C2007 05 07.65026 15 29 57.44 -16 33 17.9 19.5 R EJ031D29
K07J02W C2007 05 09.93079 15 23 02.37 -16 38 12.4 19.2 V EJ031595
K07J02W C2007 05 09.93908 15 23 00.81 -16 38 13.7 19.2 V EJ031595
K07J02W C2007 05 09.94650 15 22 59.39 -16 38 14.3 EJ031595
K07J02W C2007 05 10.33646 15 21 49.24 -16 38 58.5 19.0 V EJ031G96
K07J02W C2007 05 10.34047 15 21 48.49 -16 38 59.0 18.9 V EJ031G96
K07J02W C2007 05 10.34295 15 21 48.06 -16 38 59.3 18.9 V EJ031G96
K07J02W C2007 05 10.34698 15 21 47.30 -16 38 59.8 18.8 V EJ031G96
K07J02W C2007 05 10.34946 15 21 46.83 -16 39 01.4 18.3 V EJ031G96
K07J02W C2007 05 10.35349 15 21 46.11 -16 39 00.5 19.1 V EJ031G96
K07J02W C2007 05 10.35603 15 21 45.64 -16 39 00.7 19.0 V EJ031G96
K07J02W C2007 05 10.36006 15 21 44.92 -16 39 01.1 19.0 V EJ031G96
K07J02W 5C2007 05 10.36678 15 21 43.80 -16 39 02.4 19.0 R EJ031673
K07J02W 5C2007 05 10.36991 15 21 43.27 -16 39 02.4 EJ031673
K07J02W 5C2007 05 10.37800 15 21 41.75 -16 39 03.4 EJ031673
K07J02W 5C2007 05 10.38078 15 21 41.23 -16 39 03.6 EJ031673
K07J02W C2007 05 10.39474 15 21 38.50 -16 39 04.7 18.8 R EJ031H36
K07J02W C2007 05 10.40078 15 21 37.44 -16 39 04.9 17.9 R EJ031H36
K07J02W C2007 05 10.41299 15 21 35.05 -16 39 06.5 18.5 R EJ031H36
K07J02W C2007 05 10.54773 15 21 12.03 -16 39 19.7 19.2 V EJ031D35
K07J02W C2007 05 10.54913 15 21 11.78 -16 39 19.6 18.9 V EJ031D35
K07J02W C2007 05 10.55051 15 21 11.54 -16 39 20.2 19.1 V EJ031D35
Observer details:
595 Farra d'Isonzo. Observers E. Pettarin, G. Lombardi. Measurer E. Pettarin.
0.40-m f/4.5 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. Mayes. 0.6-m
reflector + CCD.
D29 Purple Mountain Observatory, XuYi Station. Observers H. B. Zhao,
J. S. Yao, Y. Z. Wu, M. Wang, G. T. Zhaori, R. Q. Hong, L. F. Hu.
Measurers H. B. Zhao, H. Lu, G. T. Zhaori, Y. Xia, F. Zeng. 1.04-m f/1.8
Schmidt + CCD.
D35 Lulin Observatory. Observers Q.-z. Ye, H.-C. Lin, C.-S. Lin, C.-y. Shih.
Measurer Q.-z. Ye. 0.41-m f/8.8 Ritchey-Chretien + 2Kx2K CCD + f/6.25
focal reducer.
G96 Mt. Lemmon Survey. Observer E. C. Beshore. Measurers E. C. Beshore,
E. J. Christensen, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.30-m
Schmidt-Cassegrain + CCD.
Orbital elements:
2007 JW2 Earth MOID = 0.2195 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 69.45799 (2000.0) P Q
n 0.63928808 Peri. 26.51415 +0.20599537 -0.94189805
a 1.3345606 Node 52.78478 +0.82821329 +0.02341006
e 0.6567196 Incl. 19.46070 +0.52118006 +0.33508212
P 1.54 H 18.1 G 0.15 U 9
Residuals in seconds of arc
070507 D29 0.1- 0.2- 070510 G96 0.0 0.2- 070510 673 0.3+ 0.1-
070507 D29 0.2+ 0.0 070510 G96 0.3- 0.3- 070510 H36 0.4+ 0.3+
070507 D29 0.0 0.3- 070510 G96 0.5- 1.6- 070510 H36 0.9+ 0.7+
070507 D29 0.1- 0.1+ 070510 G96 0.3- 0.3- 070510 H36 1.6- 0.3+
070509 595 0.7+ 1.0+ 070510 G96 0.3- 0.2- 070510 D35 0.1- 0.1+
070509 595 0.1+ 0.7+ 070510 G96 0.1- 0.2- 070510 D35 0.0 0.4+
070509 595 0.8- 0.9+ 070510 673 0.4+ 0.4- 070510 D35 0.2+ 0.1-
070510 G96 0.1- 0.1- 070510 673 1.0+ 0.1-
070510 G96 0.3- 0.2- 070510 673 0.4+ 0.2-
Ephemeris:
2007 JW2 a,e,i = 1.33, 0.66, 19 q = 0.4581
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 05 10 15 22.83 -16 38.2 0.776 1.785 175.8 2.4 19.1
2007 05 20 14 55.10 -16 50.4 0.844 1.845 167.8 6.7 19.6
2007 05 30 14 33.44 -16 55.8 0.940 1.900 153.2 13.9 20.2
2007 06 09 14 18.58 -17 03.7 1.059 1.950 140.2 19.5 20.7
2007 06 19 14 09.91 -17 19.6 1.195 1.995 128.8 23.4 21.1
2007 06 29 14 06.39 -17 45.6 1.343 2.036 118.6 26.0 21.5
2007 07 09 14 06.94 -18 21.2 1.499 2.072 109.4 27.6 21.8
Kyle E. Smalley (C) Copyright 2007 MPC M.P.E.C. 2007-J31
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