MPEC 2009-H21 : 2009 HT2
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M.P.E.C. 2009-H21 Issued 2009 Apr. 20, 17:12 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 HT2
Observations:
K09H02T* C2009 04 18.38289 13 33 35.13 -05 30 05.5 21.0 V EH021G96
K09H02T C2009 04 18.38369 13 33 35.56 -05 30 20.0 20.5 V EH021G96
K09H02T C2009 04 18.38450 13 33 36.10 -05 30 35.2 20.1 V EH021G96
K09H02T C2009 04 18.38530 13 33 36.54 -05 30 46.6 20.4 V EH021G96
K09H02T C2009 04 18.39223 13 33 40.53 -05 32 46.2 20.2 V EH021G96
K09H02T C2009 04 18.39293 13 33 41.00 -05 32 58.5 20.6 V EH021G96
K09H02T C2009 04 18.39361 13 33 41.29 -05 33 08.9 20.4 V EH021G96
K09H02T C2009 04 18.39429 13 33 41.79 -05 33 22.2 20.9 V EH021G96
K09H02T C2009 04 18.42653 13 34 00.98 -05 42 34.9 21.7 V EH021G96
K09H02T C2009 04 18.42711 13 34 01.30 -05 42 45.3 20.9 V EH021G96
K09H02T C2009 04 18.42769 13 34 01.70 -05 42 55.8 21.1 V EH021G96
K09H02T C2009 04 18.42825 13 34 01.92 -05 43 05.4 20.6 V EH021G96
K09H02T C2009 04 18.43021 13 34 03.21 -05 43 39.1 20.4 V EH021G96
K09H02T C2009 04 18.43077 13 34 03.46 -05 43 48.2 20.7 V EH021G96
K09H02T C2009 04 19.28740 13 43 30.68 -09 52 06.5 20.5 V EH021G96
K09H02T C2009 04 19.28791 13 43 30.93 -09 52 16.1 20.2 V EH021G96
K09H02T C2009 04 19.28843 13 43 31.29 -09 52 25.5 20.9 V EH021G96
K09H02T C2009 04 19.28883 13 43 31.47 -09 52 32.1 20.5 V EH021G96
K09H02T C2009 04 19.99736 13 51 25.85 -13 19 19.9 19.9 V EH021B21
K09H02T C2009 04 20.00541 13 51 30.93 -13 21 39.9 19.9 V EH021B21
K09H02T FC2009 04 20.01314 13 51 37.80 -13 24 01.7 EH021J95
K09H02T C2009 04 20.01346 13 51 36.07 -13 23 59.9 20.4 V EH021B21
K09H02T FC2009 04 20.02183 13 51 43.35 -13 26 31.9 20.7 R EH021J95
K09H02T C2009 04 20.27554 13 54 40.17 -14 39 35.6 19.6 V EH021G96
K09H02T C2009 04 20.27612 13 54 40.57 -14 39 45.9 20.4 V EH021G96
K09H02T C2009 04 20.27657 13 54 40.82 -14 39 53.2 20.2 V EH021G96
K09H02T C2009 04 20.30049 13 54 55.23 -14 46 52.1 20.1 R EH021H01
K09H02T C2009 04 20.30600 13 54 58.65 -14 48 27.7 20.0 R EH021H01
K09H02T C2009 04 20.31086 13 55 01.72 -14 49 51.8 19.9 R EH021H01
K09H02T C2009 04 20.31122 13 55 01.96 -14 49 58.3 19.9 R EH021H01
Observer details:
B21 Gaisberg Observatory, Schaerding. Observer R. Gierlinger. 0.7-m f/3.1
Newtonian reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. 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.
H01 Magdalena Ridge Observatory, Socorro. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 HT2 Earth MOID = 0.0514 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 13.68235 (2000.0) P Q
n 0.22568642 Peri. 178.69080 -0.88204981 +0.46534311
a 2.6717702 Node 29.40307 -0.43363169 -0.74054150
e 0.6048506 Incl. 8.64349 -0.18425982 -0.48482376
P 4.37 H 26.5 G 0.15 U 8
Residuals in seconds of arc
090418 G96 0.7+ 0.4+ 090418 G96 0.7+ 0.2- 090420 J95 0.5- 0.9-
090418 G96 0.1+ 0.4- 090418 G96 1.0- 0.2- 090420 B21 0.7+ 1.2+
090418 G96 1.0+ 1.7- 090418 G96 0.7+ 0.2- 090420 J95 0.3- 0.2+
090418 G96 0.6+ 0.7+ 090418 G96 0.5- 0.3+ 090420 G96 0.0 0.4-
090418 G96 0.8- 0.1+ 090419 G96 0.6+ 0.4+ 090420 G96 0.5+ 0.6-
090418 G96 0.1+ 0.1- 090419 G96 0.2- 0.3- 090420 G96 0.0 0.1-
090418 G96 1.6- 1.2+ 090419 G96 0.5+ 0.6- 090420 H01 0.6+ 0.2+
090418 G96 0.1- 0.5- 090419 G96 0.4- 0.2- 090420 H01 0.0 0.2+
090418 G96 0.4+ 0.7+ 090419 B21 0.7+ 1.2+ 090420 H01 0.3+ 0.4+
090418 G96 0.0 0.3+ 090420 B21 0.3+ 1.3+ 090420 H01 0.5+ 0.2+
Ephemeris:
2009 HT2 a,e,i = 2.67, 0.60, 9 q = 1.0557
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 04 19 13 40.32 -08 26.4 0.0514 1.056 176.8 3.1 20.5
2009 04 21 14 03.04 -18 05.2 0.0517 1.056 173.4 6.3 20.7
2009 04 23 14 27.09 -27 06.1 0.0539 1.057 164.3 14.9 21.1
2009 04 25 14 51.88 -34 51.2 0.0578 1.059 156.3 22.4 21.5
2009 04 27 15 16.68 -41 06.2 0.0632 1.062 149.8 28.5 21.9
2009 04 29 15 40.75 -45 55.5 0.0697 1.065 144.7 33.1 22.2
Sonia Keys (C) Copyright 2009 MPC M.P.E.C. 2009-H21
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- B01 (the abbreviated form)
