MPEC 2006-J17 : 2005 GO21
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M.P.E.C. 2006-J17 Issued 2006 May 3, 13:13 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2005 GO21
Revision to MPEC 2005-G31
Additional Observations:
K05G21O C2006 05 02.36103 05 45 49.82 -06 10 31.2 17.8 V EJ017E12
K05G21O C2006 05 02.36156 05 45 49.93 -06 10 31.9 18.1 V EJ017E12
K05G21O C2006 05 02.36208 05 45 50.07 -06 10 32.7 17.9 V EJ017E12
K05G21O C2006 05 02.36262 05 45 50.25 -06 10 33.1 17.9 V EJ017E12
K05G21O C2006 05 02.36371 05 45 50.62 -06 10 35.0 18.0 V EJ017E12
K05G21O C2006 05 02.38181 05 45 56.01 -06 11 00.7 18.2 V EJ017E12
K05G21O C2006 05 03.37559 05 50 56.40 -06 34 39.3 17.6 V EJ017E12
K05G21O C2006 05 03.37612 05 50 56.58 -06 34 40.2 17.5 V EJ017E12
K05G21O C2006 05 03.37664 05 50 56.72 -06 34 41.2 17.5 V EJ017E12
K05G21O C2006 05 03.37718 05 50 56.90 -06 34 41.8 17.4 V EJ017E12
Observer details:
E12 Siding Spring Survey. Observer R. H. McNaught. 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. 0.5-m Uppsala Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
060502 E12 2.3+ 19.9- 060503 E12 2.3+ 19.8- MPO 77859 -0.0048 day
Orbital elements:
2005 GO21 PHA, Earth MOID = 0.0440 AU
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5 MPC
M 352.31877 (2000.0) P Q
n 1.50775729 Peri. 156.54832 +0.31662525 -0.85009464
a 0.7532083 Node 272.74243 +0.78988045 +0.48193440
e 0.3402143 Incl. 24.91670 +0.52520217 -0.21231660
P 0.65 H 16.5 G 0.15 U 4
Residuals in seconds of arc
050401 E12 0.1+ 0.1+ 050409 E12 0.2+ 0.2- 050430 413 0.0 0.2+
050401 E12 0.5+ 0.5+ 050410 E12 0.6+ 1.5- 050430 413 0.0 0.2+
050401 E12 0.3+ 0.1+ 050410 E12 0.1+ 0.2+ 050501 413 0.0 0.0
050401 E12 0.2- 0.0 050410 E12 0.3- 0.3+ 050508 E12 0.5- 0.1-
050402 E12 0.0 0.3+ 050410 E12 0.1+ 0.1- 050518 E12 0.6+ 0.2+
050402 E12 0.4- 0.2+ 050411 E12 0.4+ 0.7+ 050518 E12 0.0 0.3+
050402 E12 0.6+ 0.6+ 050411 E12 0.9+ 0.3+ 050518 E12 0.4- 0.3+
050402 E12 0.1+ 0.4- 050411 E12 0.3- 0.1+ 050518 E12 0.4- 0.2+
050402 E12 0.3+ 0.3+ 050411 E12 0.4- 0.0 050519 E12 0.0 0.2-
050402 E12 0.2+ 0.0 050415 413 0.0 0.1- 050519 E12 0.4- 0.4-
050402 E12 0.1- 0.1+ 050415 413 0.0 0.1- 060502 E12 0.4+ 0.1-
050402 E12 1.2- 0.4+ 050419 413 0.0 0.1+ 060502 E12 0.3- 0.0
050402 413 0.1- 0.0 050419 413 0.1- 0.0 060502 E12 0.6- 0.1-
050402 413 0.0 0.0 050421 413 0.0 0.0 060502 E12 0.3- 0.3+
050405 413 0.0 0.1- 050427 413 0.1- 0.1- 060502 E12 0.4+ 0.1-
050405 413 0.0 0.0 050427 413 0.1+ 0.1+ 060502 E12 0.1- 0.2+
050406 413 0.0 0.1- 050428 413 0.1+ 0.0 060503 E12 0.1+ 0.2+
050406 413 0.1- 0.2- 050428 413 0.0 0.1+ 060503 E12 0.4+ 0.0
050409 E12 0.0 0.1- 050429 413 0.1- 0.1- 060503 E12 0.2+ 0.2-
050409 E12 0.4- 0.8+ 050429 413 0.0 0.0 060503 E12 0.5+ 0.1-
050409 E12 0.3+ 0.6- 050429 413 0.0 0.0
Ephemeris:
2005 GO21 a,e,i = 0.75, 0.34, 25 q = 0.4970
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 04 25 05 08.67 -03 04.9 0.710 0.741 47.4 87.8 18.2
2006 05 05 05 59.13 -07 12.5 0.661 0.806 52.9 86.3 18.2
2006 05 15 06 49.84 -10 37.9 0.625 0.863 58.1 83.9 18.1
2006 05 25 07 41.44 -13 08.1 0.602 0.912 62.8 81.2 18.0
2006 06 04 08 33.72 -14 38.0 0.590 0.951 66.7 78.5 18.0
2006 06 14 09 25.58 -15 08.2 0.589 0.980 69.5 76.2 18.0
2006 06 24 10 15.65 -14 45.6 0.599 0.999 71.1 74.3 18.0
2006 07 04 11 02.74 -13 42.7 0.616 1.008 71.6 73.0 18.0
2006 07 14 11 46.12 -12 12.1 0.639 1.008 70.9 72.3 18.1
2006 07 24 12 25.58 -10 23.6 0.664 0.998 69.3 72.3 18.1
2006 08 03 13 01.32 -08 23.8 0.688 0.977 66.9 72.8 18.2
2006 08 13 13 33.52 -06 14.5 0.707 0.947 64.0 74.0 18.2
2006 08 23 14 02.32 -03 54.7 0.717 0.907 60.5 76.0 18.2
Kyle E. Smalley (C) Copyright 2006 MPC M.P.E.C. 2006-J17
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