MPEC 2007-T69 : 1993 TQ2
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M.P.E.C. 2007-T69 Issued 2007 Oct. 10, 22:41 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
1993 TQ2
Revision to MPEC 1993-X03
Additional Observations:
J93T02Q C2007 09 08.46041 02 43 13.94 +14 52 01.9 21.1 V ET069G96
J93T02Q C2007 09 08.46552 02 43 14.44 +14 52 06.3 21.6 V ET069G96
J93T02Q C2007 09 08.47052 02 43 14.88 +14 52 10.0 21.1 V ET069G96
J93T02Q C2007 09 08.47549 02 43 15.27 +14 52 14.6 21.5 V ET069G96
J93T02Q C2007 10 07.38053 03 26 34.75 +22 56 30.6 20.3 V ET069691
J93T02Q C2007 10 07.39817 03 26 36.12 +22 56 52.9 20.2 V ET069691
J93T02Q C2007 10 07.41582 03 26 37.49 +22 57 14.6 20.2 V ET069691
J93T02Q C2007 10 07.49577 03 26 43.73 +22 58 54.1 ET069291
J93T02Q C2007 10 07.49973 03 26 44.02 +22 58 59.0 20.6 V ET069291
J93T02Q C2007 10 07.50373 03 26 44.33 +22 59 04.0 20.7 V ET069291
J93T02Q C2007 10 08.36210 03 27 58.16 +23 17 09.9 20.5 V ET069291
J93T02Q C2007 10 08.37071 03 27 58.83 +23 17 20.9 20.5 V ET069291
J93T02Q C2007 10 08.38041 03 27 59.58 +23 17 33.6 20.6 V ET069291
Observer details:
291 LPL/Spacewatch II. Observers T. H. Bressi, J. V. Scotti. 1.8-m f/2.7
reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer T. H. Bressi. 0.9-m f/3
reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers E. C. Beshore,
A. Boattini, 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
070908 G96 1.97+ 0.88+ 071008 291 3.63+ 1.28+ MPC 23247 -1.9 day
Orbital elements:
1993 TQ2 Earth MOID = 0.1982 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 339.78573 (2000.0) P Q
n 0.35249165 Peri. 77.43830 -0.01547363 -0.99957744
a 1.9847394 Node 13.52094 +0.87165464 -0.02554247
e 0.4209218 Incl. 6.04144 +0.48987627 +0.01387517
P 2.80 H 20.0 G 0.15 U 2
Residuals in seconds of arc
931011 691 0.2- 0.1+ 931106 691 0.3+ 0.1+ 070908 G96 0.4+ 0.1-
931011 691 0.5- 0.6+ 931106 691 0.7+ 0.1+ 070908 G96 1.0+ 0.1+
931011 691 0.5- 0.5- 931108 658 0.1+ 0.6- 070908 G96 0.8+ 0.4-
931016 691 0.1+ 0.1- 931108 658 1.0+ 0.0 070908 G96 0.0 0.1+
931016 691 0.1- 0.0 931111 801 1.3+ 1.3- 071007 691 0.1+ 0.2+
931016 691 0.2- 0.7- 931117 801 0.6+ 0.4+ 071007 691 0.1+ 0.3+
931020 691 0.7- 0.4+ 931117 801 0.6+ 0.4- 071007 691 0.0 0.1-
931020 691 0.0 0.4- 940112 104 1.0+ 0.6+ 071007 291 0.0 0.1+
931020 691 0.1+ 0.4+ 940112 104 0.2- 0.4+ 071007 291 0.3- 0.1+
931024 691 0.0 0.2- 940112 104 1.4+ 0.1- 071007 291 0.4- 0.2+
931024 691 0.0 0.0 940114 658 1.1- 0.0 071008 291 0.1- 0.0
931027 413 0.3- 0.1- 940114 658 1.3- 0.1+ 071008 291 0.0 0.1-
931027 413 0.3- 0.1- 940114 658 1.2- 0.1+ 071008 291 0.0 0.2+
Ephemeris:
1993 TQ2 a,e,i = 1.98, 0.42, 6 q = 1.1493
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 10 07 03 26.03 +22 48.6 0.468 1.384 138.2 28.8 20.3
2007 10 17 03 39.92 +26 36.1 0.393 1.334 143.7 26.3 19.8
2007 10 27 03 53.43 +31 10.3 0.331 1.288 148.6 23.7 19.3
2007 11 06 04 07.05 +36 35.3 0.282 1.247 152.0 21.9 18.8
2007 11 16 04 21.76 +42 41.2 0.245 1.212 152.8 21.9 18.4
2007 11 26 04 39.68 +48 57.7 0.219 1.184 151.0 23.9 18.2
2007 12 06 05 03.32 +54 34.3 0.204 1.163 147.7 26.9 18.1
2007 12 16 05 34.39 +58 31.5 0.198 1.152 144.8 29.5 18.1
2007 12 26 06 11.37 +60 05.1 0.200 1.150 143.3 30.8 18.1
2008 01 05 06 47.66 +59 03.8 0.207 1.157 143.6 30.3 18.2
2008 01 15 07 17.56 +55 49.8 0.223 1.173 145.1 28.7 18.3
2008 01 25 07 40.39 +51 07.9 0.246 1.198 146.8 26.8 18.6
2008 02 04 07 58.01 +45 46.1 0.279 1.230 147.3 25.6 18.8
2008 02 14 08 12.97 +40 21.8 0.323 1.268 146.0 25.8 19.2
2008 02 24 08 27.07 +35 19.3 0.380 1.312 142.8 27.1 19.7
2008 03 05 08 41.07 +30 49.2 0.448 1.360 138.4 28.9 20.2
2008 03 15 08 55.43 +26 51.6 0.529 1.411 133.4 30.8 20.7
2008 03 25 09 10.29 +23 22.5 0.622 1.465 128.1 32.4 21.2
2008 04 04 09 25.55 +20 16.3 0.725 1.520 122.7 33.6 21.6
2008 04 14 09 41.18 +17 27.4 0.839 1.576 117.4 34.4 22.0
Sonia Keys (C) Copyright 2007 MPC M.P.E.C. 2007-T69
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