MPEC 2009-U68 : 2009 HW77
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M.P.E.C. 2009-U68 Issued 2009 Oct. 23, 02:52 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
2009 HW77
Additional Observations:
K09H77W C2008 03 10.42621 13 48 49.35 -01 35 21.8 21.1 V EU068G96
K09H77W C2008 03 10.43696 13 48 49.28 -01 35 21.1 21.2 V EU068G96
K09H77W C2008 03 10.44760 13 48 49.14 -01 35 20.9 21.4 V EU068G96
K09H77W C2008 03 10.45838 13 48 49.03 -01 35 20.1 21.0 V EU068G96
K09H77W C2008 03 27.25247 13 45 47.47 -01 19 45.5 20.9 V EU068691
K09H77W C2008 03 27.26763 13 45 47.29 -01 19 44.2 20.8 V EU068691
K09H77W C2008 03 27.28280 13 45 47.09 -01 19 43.2 20.7 V EU068691
K09H77W C2008 04 01.24699 13 44 45.04 -01 15 03.3 20.9 V EU068691
K09H77W C2008 04 01.26982 13 44 44.76 -01 15 02.3 21.1 V EU068691
K09H77W C2008 04 01.28496 13 44 44.57 -01 15 01.3 21.2 V EU068691
K09H77W C2008 04 04.24286 13 44 06.30 -01 12 16.6 20.7 V EU068691
K09H77W C2008 04 04.26378 13 44 06.05 -01 12 16.3 20.8 V EU068691
K09H77W C2008 04 04.28542 13 44 05.76 -01 12 14.7 20.8 V EU068691
K09H77W C2009 05 01.91252 14 10 58.60 -07 04 17.5 19.8 R EU068069
K09H77W C2009 05 01.94088 14 10 58.18 -07 04 16.5 20.0 R EU068069
K09H77W C2009 05 25.25433 14 06 08.24 -06 54 24.2 22.0 V EU068G96
K09H77W C2009 05 25.26224 14 06 08.17 -06 54 23.9 20.8 V EU068G96
K09H77W C2009 05 25.27634 14 06 07.99 -06 54 24.1 21.5 V EU068G96
K09H77W C2009 05 25.28440 14 06 07.92 -06 54 24.0 21.9 V EU068G96
Observer details:
069 Baldone. Observer I. Eglitis. Measurer K. Cernis. 0.80-m f/3.0
Schmidt + CCD.
691 Steward Observatory, Kitt Peak. Observers T. H. Bressi, R. S. McMillan.
0.9-m Spacewatch telescope.
G96 Mt. Lemmon Survey. Observers S. M. Larson, R. A. Kowalski. Measurers
E. C. Beshore, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson. 1.5-m reflector + CCD.
Orbital elements:
2009 HW77
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 10.61568 (2000.0) P Q
n 0.00991448 Peri. 140.77151 -0.95741229 +0.16533430
a 21.4596589 Node 50.42554 -0.27327049 -0.78351940
e 0.4189427 Incl. 17.88353 +0.09319312 -0.59896738
P 99.41 H 9.8 G 0.15 U 4
Residuals in seconds of arc
080310 G96 0.2- 0.0 080404 691 0.5- 0.3+ 090428 069 1.7- 0.1-
080310 G96 0.3+ 0.2+ 080404 691 0.0 0.5- 090428 069 0.1- 0.2-
080310 G96 0.3- 0.2- 080404 691 0.1- 0.1- 090501 069 0.5- 0.5-
080310 G96 0.4- 0.0 090425 069 0.3+ 0.3+ 090501 069 1.0- 0.5-
080327 691 0.1+ 0.1- 090425 069 0.3+ 0.4+ 090525 G96 0.0 0.1+
080327 691 0.2+ 0.3+ 090425 069 0.6+ 0.6- 090525 G96 0.2+ 0.3+
080327 691 0.1+ 0.5+ 090425 069 0.1+ 0.2+ 090525 G96 0.1- 0.1-
080401 691 0.1- 0.0 090425 069 0.6+ 0.1- 090525 G96 0.2+ 0.1-
080401 691 0.2+ 0.3- 090428 069 0.5+ 0.4+
080401 691 0.3+ 0.1- 090428 069 0.7+ 0.7+
Ephemeris:
2009 HW77 a,e,i = 21.46, 0.42, 18 q = 12.469
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 12 05 14 39.50 -11 53.6 13.715 12.888 31.8 2.3 21.3
2009 12 15 14 42.59 -12 11.0 13.622 12.896 41.1 2.9 21.3
2009 12 25 14 45.42 -12 26.6 13.507 12.904 50.5 3.4 21.3
2010 01 04 14 47.91 -12 40.3 13.375 12.912 60.0 3.8 21.3
2010 01 14 14 50.02 -12 52.0 13.229 12.920 69.6 4.1 21.3
2010 01 24 14 51.69 -13 01.5 13.073 12.928 79.4 4.3 21.3
2010 02 03 14 52.89 -13 08.8 12.913 12.936 89.2 4.4 21.3
2010 02 13 14 53.58 -13 13.9 12.751 12.945 99.1 4.3 21.3
2010 02 23 14 53.75 -13 16.9 12.595 12.953 109.1 4.1 21.2
2010 03 05 14 53.40 -13 17.7 12.448 12.961 119.2 3.8 21.2
2010 03 15 14 52.57 -13 16.7 12.315 12.970 129.4 3.4 21.1
2010 03 25 14 51.28 -13 14.1 12.202 12.978 139.6 2.9 21.1
2010 04 04 14 49.62 -13 10.1 12.112 12.987 149.9 2.2 21.0
2010 04 14 14 47.65 -13 05.1 12.048 12.995 160.1 1.5 21.0
2010 04 24 14 45.47 -12 59.6 12.012 13.004 170.2 0.8 20.9
2010 05 04 14 43.19 -12 54.0 12.006 13.013 177.1 0.2 20.8
2010 05 14 14 40.91 -12 48.7 12.030 13.022 168.5 0.9 20.9
2010 05 24 14 38.75 -12 44.2 12.083 13.030 158.5 1.6 21.0
2010 06 03 14 36.79 -12 41.0 12.164 13.039 148.5 2.3 21.1
2010 06 13 14 35.13 -12 39.3 12.269 13.048 138.6 2.9 21.1
2010 06 23 14 33.84 -12 39.5 12.397 13.057 128.8 3.5 21.2
2010 07 03 14 32.97 -12 41.8 12.542 13.067 119.1 3.9 21.2
2010 07 13 14 32.55 -12 46.3 12.702 13.076 109.5 4.2 21.3
2010 07 23 14 32.61 -12 53.0 12.871 13.085 100.0 4.4 21.3
2010 08 02 14 33.15 -13 01.8 13.044 13.094 90.6 4.4 21.4
2010 08 12 14 34.16 -13 12.8 13.218 13.104 81.3 4.4 21.4
2010 08 22 14 35.62 -13 25.7 13.388 13.113 72.1 4.2 21.4
2010 09 01 14 37.50 -13 40.3 13.550 13.123 63.0 3.9 21.4
2010 09 11 14 39.77 -13 56.5 13.700 13.132 53.9 3.6 21.4
2010 09 21 14 42.39 -14 13.8 13.835 13.142 44.8 3.1 21.4
2010 10 01 14 45.30 -14 32.2 13.951 13.152 35.8 2.6 21.4
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-U68
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