MPEC 2012-H09 : 2012 HE
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M.P.E.C. 2012-H09 Issued 2012 Apr. 17, 00:26 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 HE
Observations:
K12H00E* C2012 04 16.33256 13 17 45.92 +20 46 09.5 19.3 VrEH009703
K12H00E C2012 04 16.33814 13 17 49.34 +20 45 14.1 19.8 VrEH009703
K12H00E C2012 04 16.34379 13 17 52.72 +20 44 20.6 19.8 VrEH009703
K12H00E C2012 04 16.34949 13 17 56.14 +20 43 24.6 20.0 VrEH009703
K12H00E C2012 04 16.40337 13 18 29.55 +20 34 30.5 19.7 VrEH009703
K12H00E C2012 04 16.41005 13 18 33.76 +20 33 23.6 19.2 VrEH009703
K12H00E C2012 04 16.41693 13 18 38.30 +20 32 13.5 19.1 VrEH009703
K12H00E C2012 04 16.42377 13 18 42.48 +20 31 04.9 19.8 VrEH009703
K12H00E C2012 04 16.60565 13 21 04.62 +20 00 43.9 19.8 RoEH009300
K12H00E C2012 04 16.60913 13 21 06.80 +20 00 07.7 19.8 RoEH009300
K12H00E C2012 04 16.61215 13 21 08.76 +19 59 37.3 19.8 RoEH009300
K12H00E C2012 04 16.61516 13 21 10.66 +19 59 05.5 20.1 RoEH009300
K12H00E C2012 04 16.61817 13 21 12.68 +19 58 34.8 19.9 RoEH009300
K12H00E KC2012 04 16.95406 13 25 31.92 +18 56 55.1 19.4 VvEH009I93
K12H00E KC2012 04 16.96228 13 25 37.81 +18 55 21.5 19.5 VvEH009I93
K12H00E KC2012 04 16.96860 13 25 42.33 +18 54 09.2 19.4 VvEH009I93
Observer details:
300 Bisei Spaceguard Center--BATTeRS. Observers S. Okumura, T. Sakamoto.
1.0-m f/3.0 reflector + CCD.
703 Catalina Sky Survey. Observer A. D. Grauer. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
0.68-m Schmidt + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/5.0 reflector + CCD.
Orbital elements:
2012 HE Earth MOID = 0.0123 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 343.70603 (2000.0) P Q
n 0.30876715 Peri. 196.21907 -0.65745513 +0.74984982
a 2.1679470 Node 32.78271 -0.67524174 -0.54273891
e 0.5355238 Incl. 7.85658 -0.33436708 -0.37836453
P 3.19 H 25.6 G 0.15 U 8
Residuals in seconds of arc
120416 703 0.0 0.2+ 120416 703 1.8+ 0.2- 120416 300 0.4+ 0.2+
120416 703 0.6+ 1.1- 120416 703 1.0- 0.5+ 120416 I93 0.2- 0.2+
120416 703 0.0 0.4+ 120416 300 0.6+ 0.2- 120416 I93 0.1+ 0.0
120416 703 0.7- 0.0 120416 300 0.2- 0.5- 120416 I93 0.1+ 0.2-
120416 703 0.2- 0.1+ 120416 300 0.1- 0.4+
120416 703 0.5- 0.4+ 120416 300 0.7- 0.3-
Ephemeris:
2012 HE a,e,i = 2.17, 0.54, 8 q = 1.0070
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 03 18 12 05 30.3 +31 19 23 0.1980 1.1701 149.4 25.6 23.6
...
2012 04 02 12 16 30.4 +31 54 38 0.1117 1.0903 142.5 33.9 22.4
...
2012 04 10 12 35 21.1 +29 20 29 0.06912 1.0568 141.5 36.2 21.4
...
2012 04 16 13 14 07.3 +21 37 45 0.03900 1.0368 147.7 31.1 20.0
2012 04 17 13 26 05.1 +18 50 07 0.03435 1.0339 150.5 28.6 19.6
2012 04 18 13 41 06.1 +15 06 04 0.02993 1.0311 154.1 25.2 19.2
...
2012 04 24 17 34 19.8 -38 48 54 0.01923 1.0176 127.6 51.6 19.0
...
2012 05 02 21 56 01.2 -47 12 00 0.05231 1.0079 88.6 88.5 22.3
...
2012 05 17 23 00 14.7 -42 53 24 0.1255 1.0162 88.7 84.2 24.1
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-H09
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