MPEC 2009-H57 : 2009 HT58
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M.P.E.C. 2009-H57 Issued 2009 Apr. 26, 22:18 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 HT58
Observations:
K09H58T* C2009 04 24.20962 13 23 29.62 -03 51 14.7 19.7 V EH057G96
K09H58T C2009 04 24.21647 13 23 26.28 -03 53 19.2 19.9 V EH057G96
K09H58T C2009 04 24.22332 13 23 22.92 -03 55 24.8 20.2 V EH057G96
K09H58T C2009 04 24.23012 13 23 19.57 -03 57 28.5 EH057G96
K09H58T C2009 04 24.26439 13 23 02.65 -04 07 54.8 19.7 V EH057G96
K09H58T C2009 04 24.26491 13 23 02.36 -04 08 04.3 19.9 V EH057G96
K09H58T C2009 04 24.26542 13 23 02.14 -04 08 13.4 19.9 V EH057G96
K09H58T C2009 04 24.26593 13 23 01.86 -04 08 22.8 19.9 V EH057G96
K09H58T C2009 04 24.31903 13 22 35.56 -04 24 31.8 19.5 R EH057854
K09H58T C2009 04 24.32308 13 22 33.57 -04 25 45.0 19.5 R EH057854
K09H58T C2009 04 24.32715 13 22 31.68 -04 27 01.3 19.5 R EH057854
K09H58T C2009 04 24.35164 13 22 19.52 -04 34 29.8 20.1 V EH057G96
K09H58T C2009 04 24.35215 13 22 19.23 -04 34 39.5 19.8 V EH057G96
K09H58T C2009 04 24.35267 13 22 18.98 -04 34 49.0 20.0 V EH057G96
K09H58T C2009 04 24.35321 13 22 18.76 -04 34 58.6 19.6 V EH057G96
K09H58T C2009 04 24.40097 13 21 55.47 -04 49 32.6 19.9 V EH057G96
K09H58T C2009 04 24.40148 13 21 55.22 -04 49 41.4 19.9 V EH057G96
K09H58T C2009 04 24.40198 13 21 54.97 -04 49 51.4 20.1 V EH057G96
K09H58T C2009 04 24.40251 13 21 54.72 -04 50 01.1 19.9 V EH057G96
K09H58T C2009 04 25.19274 13 16 06.88 -08 54 41.3 20.0 V EH057G96
K09H58T C2009 04 25.19326 13 16 06.63 -08 54 50.7 20.2 V EH057G96
K09H58T C2009 04 25.19378 13 16 06.34 -08 55 00.5 19.8 V EH057G96
K09H58T C2009 04 25.89993 13 10 34.66 -12 37 16.6 EH057J95
K09H58T C2009 04 25.90462 13 10 32.20 -12 38 44.6 EH057J95
K09H58T C2009 04 25.90965 13 10 29.63 -12 40 20.4 19.9 R EH057J95
K09H58T tC2009 04 26.18905 13 08 18.29 -14 07 48.8 20.1 V EH057291
K09H58T tC2009 04 26.19286 13 08 16.15 -14 09 06.0 20.3 V EH057291
K09H58T C2009 04 26.26396 13 07 38.02 -14 31 30.0 19.5 V EH057G96
K09H58T 5C2009 04 26.26794 13 07 37.09 -14 32 46.9 20.2 R EH057673
K09H58T C2009 04 26.27015 13 07 34.71 -14 33 26.8 19.0 V EH057G96
K09H58T 5C2009 04 26.27211 13 07 34.84 -14 34 07.2 EH057673
K09H58T C2009 04 26.27641 13 07 31.44 -14 35 23.1 20.3 V EH057G96
K09H58T 5C2009 04 26.28183 13 07 29.62 -14 37 10.2 EH057673
K09H58T 5C2009 04 26.28738 13 07 26.57 -14 38 52.6 EH057673
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.61-m f/16
Cassegrain + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observers A. R. Gibbs, R. E. Hill. 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.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 HT58 Earth MOID = 0.0567 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 27.69398 (2000.0) P Q
n 0.63166110 Peri. 190.03298 -0.72266279 +0.66939313
a 1.3452819 Node 34.08267 -0.61095696 -0.50206709
e 0.2119652 Incl. 17.90157 -0.32324925 -0.54757783
P 1.56 H 25.2 G 0.15 U 7
Residuals in seconds of arc
090424 G96 0.2- 0.3- 090424 G96 0.3- 0.3- 090425 J95 0.3- 0.1-
090424 G96 0.0 0.2+ 090424 G96 0.2- 0.3- 090426 291 0.2+ 0.4+
090424 G96 0.1+ 0.4- 090424 G96 0.4+ 0.0 090426 291 (1.6- 4.5-)
090424 G96 0.0 0.1+ 090424 G96 0.0 0.0 090426 G96 1.2- 1.3-
090424 G96 0.1+ 0.2- 090424 G96 0.1- 0.6+ 090426 673 1.2+ 0.4+
090424 G96 0.4- 0.2- 090424 G96 0.2- 0.3- 090426 G96 1.0- 1.2-
090424 G96 0.1+ 0.0 090424 G96 0.1- 0.3- 090426 673 0.9+ 1.1-
090424 G96 0.3- 0.1- 090425 G96 0.0 0.1- 090426 G96 0.4+ 0.7+
090424 854 0.3- 1.2+ 090425 G96 0.2+ 0.3+ 090426 673 0.8+ 0.5-
090424 854 (0.1- 2.1+) 090425 G96 0.2- 0.3+ 090426 673 0.3- 1.9+
090424 854 1.7+ 0.2+ 090425 J95 0.4+ 0.4-
090424 G96 0.3+ 0.0 090425 J95 0.5- 0.4+
Ephemeris:
2009 HT58 a,e,i = 1.35, 0.21, 18 q = 1.0601
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 04 19 13 57.13 +18 27.9 0.0717 1.067 150.3 27.8 20.9
2009 04 20 13 51.37 +14 54.9 0.0685 1.066 153.6 24.7 20.7
2009 04 21 13 45.28 +11 00.2 0.0656 1.066 157.1 21.5 20.5
2009 04 22 13 38.85 +06 44.0 0.0631 1.065 160.5 18.4 20.3
2009 04 23 13 32.09 +02 07.5 0.0611 1.064 163.6 15.5 20.1
2009 04 24 13 24.98 -02 46.2 0.0596 1.064 165.7 13.5 20.0
2009 04 25 13 17.53 -07 52.7 0.0586 1.063 166.1 13.2 19.9
2009 04 26 13 09.75 -13 06.3 0.0582 1.062 164.4 14.8 20.0
2009 04 27 13 01.66 -18 20.2 0.0584 1.062 161.2 17.8 20.1
2009 04 28 12 53.26 -23 27.6 0.0591 1.062 157.2 21.6 20.2
2009 04 29 12 44.59 -28 22.5 0.0604 1.061 152.8 25.7 20.4
2009 04 30 12 35.66 -33 00.0 0.0622 1.061 148.5 29.8 20.6
2009 05 01 12 26.50 -37 17.0 0.0645 1.061 144.2 33.7 20.8
2009 05 02 12 17.16 -41 11.7 0.0672 1.060 140.3 37.4 21.0
2009 05 03 12 07.66 -44 43.8 0.0703 1.060 136.6 40.8 21.2
2009 05 04 11 58.05 -47 53.9 0.0737 1.060 133.3 43.8 21.4
2009 05 05 11 48.37 -50 43.3 0.0773 1.060 130.2 46.6 21.5
2009 05 06 11 38.66 -53 13.5 0.0812 1.060 127.5 49.0 21.7
2009 05 07 11 28.97 -55 26.5 0.0852 1.060 125.0 51.2 21.9
2009 05 08 11 19.34 -57 23.9 0.0895 1.060 122.8 53.2 22.0
2009 05 09 11 09.81 -59 07.5 0.0938 1.061 120.8 54.9 22.2
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-H57
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