MPEC 2016-G02 : 2009 HA21
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M.P.E.C. 2016-G02 Issued 2016 Apr. 1, 01:54 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2009 HA21
Revision to MPEC 2009-H26
Additional Observations:
K09H21A C2016 03 31.40229 13 06 54.97 -15 07 02.5 19.3 rREG002G45
K09H21A C2016 03 31.40779 13 06 52.96 -15 06 38.7 18.9 rREG002G45
K09H21A C2016 03 31.41308 13 06 51.03 -15 06 15.6 19.0 rREG002G45
K09H21A C2016 03 31.41837 13 06 49.09 -15 05 53.5 18.7 rREG002G45
K09H21A KC2016 04 01.02970 13 03 21.14 -14 23 25.8 qEG002J95
K09H21A KC2016 04 01.03441 13 03 19.53 -14 23 06.1 qEG002J95
K09H21A KC2016 04 01.04006 13 03 17.59 -14 22 43.4 18.6 RqEG002J95
Observer details:
G45 Space Surveillance Telescope, Atom Site. Observers M. Blythe, R. Brungard,
P. Festler, T. McVey, J. Paige, G. Spitz. Measurers M. Cornell, A. Klein,
J. Ruprecht, G. Ushomirsky, J. Varey, D. Woods. 3.5-m f/1 reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160331 G45 2.54+ 0.31- 160401 J95 2.52+ 0.36- MPO157537 -1.0 day
Orbital elements:
2009 HA21 PHA, Earth MOID = 0.0465 AU
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5 MPC
M 352.95138 (2000.0) P Q
n 0.55827188 Peri. 219.80401 +0.41948873 -0.90648727
a 1.4607376 Node 205.50237 +0.85869533 +0.41342977
e 0.7287696 Incl. 6.40937 +0.29440028 +0.08577091
P 1.77 H 20.6 G 0.15 U 6
Residuals in seconds of arc
090420 G96 0.7- 0.1- 090421 G96 0.7+ 0.1- 090424 291 0.3- 0.1-
090420 G96 0.1- 0.1+ 090421 G96 0.1- 0.7- 090429 291 1.1+ 0.3+
090420 G96 0.5+ 0.2+ 090421 G96 0.4+ 0.5- 090429 291 0.7- 0.3+
090420 G96 0.2+ 0.5+ 090421 G96 0.1+ 1.0- 090429 291 0.5+ 0.4+
090420 G96 0.1- 0.5+ 090423 H55 0.3- 1.2- 160331 G45 0.8+ 0.1+
090420 G96 0.1- 0.4+ 090423 H55 0.3- 0.6- 160331 G45 0.7+ 0.2+
090420 G96 0.1- 0.1+ 090423 H55 1.7- 0.3- 160331 G45 0.6+ 0.6+
090420 G96 0.0 0.3+ 090423 474 0.1- 0.5- 160331 G45 0.3+ 0.1-
090420 H01 0.1- 0.1+ 090423 474 0.4+ 0.3- 160401 J95 0.2- 0.2-
090420 H01 0.1- 0.0 090423 474 0.6- 0.5- 160401 J95 0.1- 0.2+
090420 H01 0.1- 0.1+ 090424 291 0.6+ 0.0 160401 J95 0.2- 0.2-
090420 H01 0.1- 0.1+ 090424 291 0.0 0.7+
Ephemeris:
2009 HA21 a,e,i = 1.46, 0.73, 6 q = 0.3962
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2016 03 02 20 47 48.5 -33 25 08 0.2112 0.8373 38.9 132.0 22.7
...
2016 03 17 16 11 53.6 -38 56 07 0.1445 1.0476 107.5 65.0 18.8
...
2016 03 25 13 59 04.5 -24 35 38 0.1797 1.1512 146.4 28.7 18.4
...
2016 03 31 13 09 20.8 -15 35 44 0.2316 1.2252 166.3 11.2 18.6
2016 04 01 13 03 31.4 -14 24 57 0.2416 1.2372 168.8 9.0 18.6
2016 04 02 12 58 12.8 -13 19 06 0.2520 1.2491 171.1 7.1 18.6
...
2016 04 08 12 34 35.1 -08 10 59 0.3201 1.3189 171.7 6.3 19.2
...
2016 04 16 12 17 07.6 -04 02 30 0.4234 1.4074 159.2 14.7 20.3
...
2016 05 01 12 05 28.1 -00 33 02 0.6445 1.5604 140.6 24.2 21.7
A. U. Tomatic (C) Copyright 2016 MPC M.P.E.C. 2016-G02
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