MPEC 2012-H23 : 2012 HJ1
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M.P.E.C. 2012-H23 Issued 2012 Apr. 19, 16:33 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 HJ1
Observations:
K12H01J* C2012 04 16.38162 15 11 59.35 -06 33 26.2 19.5 VrEH023703
K12H01J C2012 04 16.38745 15 11 58.84 -06 33 27.7 19.6 VrEH023703
K12H01J C2012 04 16.39333 15 11 58.23 -06 33 30.1 19.9 VrEH023703
K12H01J C2012 04 16.39918 15 11 57.62 -06 33 34.0 19.2 VrEH023703
K12H01J C2012 04 16.43268 15 11 54.12 -06 33 48.8 18.7 VrEH023703
K12H01J C2012 04 16.44699 15 11 52.63 -06 33 57.1 19.2 VrEH023703
K12H01J C2012 04 16.45419 15 11 51.84 -06 34 00.6 19.5 VrEH023703
K12H01J C2012 04 16.46713 15 11 50.42 -06 34 07.3 19.7 VrEH023703
K12H01J C2012 04 16.47093 15 11 50.06 -06 34 08.9 19.7 VrEH023703
K12H01J C2012 04 16.47472 15 11 49.59 -06 34 10.7 19.1 VrEH023703
K12H01J C2012 04 16.47853 15 11 49.27 -06 34 12.9 18.7 VrEH023703
K12H01J |C2012 04 17.19941 15 10 35.19 -06 39 54.9 19.8 VoEH023807
K12H01J |C2012 04 17.20147 15 10 34.97 -06 39 55.8 19.9 VoEH023807
K12H01J |C2012 04 17.20353 15 10 34.73 -06 39 56.9 19.8 VoEH023807
K12H01J |C2012 04 17.20560 15 10 34.51 -06 39 58.1 19.5 VoEH023807
K12H01J KC2012 04 17.32556 15 10 21.58 -06 41 09.0 19.0 VtEH023H21
K12H01J KC2012 04 17.33235 15 10 20.84 -06 41 12.5 18.8 VtEH023H21
K12H01J KC2012 04 17.33915 15 10 20.10 -06 41 15.6 19.1 VtEH023H21
K12H01J C2012 04 17.42910 15 10 10.43 -06 41 59.8 18.8 RoEH023H01
K12H01J C2012 04 17.43677 15 10 09.59 -06 42 03.6 18.7 RoEH023H01
K12H01J C2012 04 17.44358 15 10 08.85 -06 42 07.0 18.9 RoEH023H01
K12H01J C2012 04 17.45334 15 10 07.78 -06 42 11.9 18.8 RoEH023H01
K12H01J |C2012 04 18.15906 15 08 52.16 -06 47 58.9 19.9 VoEH023807
K12H01J |C2012 04 18.16111 15 08 51.95 -06 47 59.6 19.7 VoEH023807
K12H01J |C2012 04 18.16317 15 08 51.70 -06 48 00.7 20.1 VoEH023807
K12H01J |C2012 04 18.16523 15 08 51.48 -06 48 01.9 20.4 VoEH023807
K12H01J |C2012 04 18.17139 15 08 50.80 -06 48 05.0 19.4 VoEH023807
K12H01J |C2012 04 18.17344 15 08 50.54 -06 48 06.0 19.7 VoEH023807
K12H01J |C2012 04 18.17507 15 08 50.37 -06 48 06.7 19.9 VoEH023807
K12H01J IC2012 04 18.27208 15 08 39.53 -06 49 07.5 18.6 RuEH023H36
K12H01J KC2012 04 18.27653 15 08 39.11 -06 49 09.8 18.9 RuEH023H36
K12H01J KC2012 04 18.28545 15 08 38.07 -06 49 15.0 19.1 RuEH023H36
K12H01J C2012 04 18.38480 15 08 26.91 -06 50 05.4 18.8 VrEH023703
K12H01J C2012 04 18.38714 15 08 26.55 -06 50 06.4 18.9 VrEH023703
K12H01J C2012 04 18.38949 15 08 26.30 -06 50 07.4 18.7 VrEH023703
K12H01J C2012 04 18.39184 15 08 25.98 -06 50 09.6 19.1 VrEH023703
K12H01J C2012 04 18.46270 15 08 17.94 -06 50 45.8 18.6 RoEH023H01
K12H01J C2012 04 18.47446 15 08 16.60 -06 50 51.9 18.5 RoEH023H01
K12H01J C2012 04 18.47994 15 08 15.98 -06 50 54.8 18.6 RoEH023H01
K12H01J C2012 04 18.48557 15 08 15.35 -06 50 57.5 18.5 RoEH023H01
K12H01J KC2012 04 18.58902 15 08 04.24 -06 51 38.9 18.9 RoEH023474
K12H01J KC2012 04 18.59183 15 08 03.91 -06 51 40.3 18.8 RoEH023474
K12H01J KC2012 04 18.59466 15 08 03.57 -06 51 41.8 18.7 RoEH023474
K12H01J KC2012 04 19.14185 15 07 02.07 -06 56 31.1 19.8 RuEH023821
K12H01J KC2012 04 19.14427 15 07 01.80 -06 56 32.4 19.9 RuEH023821
K12H01J KC2012 04 19.14860 15 07 01.28 -06 56 34.8 19.9 RuEH023821
K12H01J C2012 04 19.55939 15 06 13.70 -07 00 12.7 18.7 RoEH023474
K12H01J C2012 04 19.56009 15 06 13.63 -07 00 12.8 18.6 RoEH023474
K12H01J C2012 04 19.56080 15 06 13.53 -07 00 13.2 18.4 RoEH023474
K12H01J C2012 04 19.56150 15 06 13.44 -07 00 13.9 18.7 RoEH023474
K12H01J C2012 04 19.56221 15 06 13.36 -07 00 14.2 18.9 RoEH023474
K12H01J C2012 04 19.56292 15 06 13.29 -07 00 14.5 18.8 RoEH023474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
703 Catalina Sky Survey. Observers A. D. Grauer, R. E. Hill. 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.
807 Cerro Tololo. Observers R. Holmes, T. Linder, V. Hoette. Measurers
R. Holmes, T. Linder. 0.41-m f/11 Ritchey-Chretien + CCD.
821 Cordoba-Bosque Alegre. Observers C. Colazo, P. Guzzo. Measurer C. Colazo.
1.54-m f/4.8 reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, S. Foglia, T. Vorobjov. 0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
Orbital elements:
2012 HJ1 PHA, Earth MOID = 0.0333 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 302.16242 (2000.0) P Q
n 0.33949363 Peri. 290.93919 +0.81417144 +0.44914538
a 2.0350807 Node 44.72846 -0.09394143 +0.72727761
e 0.6156994 Incl. 31.52398 -0.57297458 +0.51897563
P 2.90 H 17.6 G 0.15 U 9
Residuals in seconds of arc
120416 703 1.4- 0.6- 120417 H01 0.2+ 0.1- 120418 H01 0.1- 0.0
120416 703 0.1+ 0.7+ 120417 H01 0.2+ 0.1- 120418 H01 0.2- 0.1-
120416 703 0.2+ 1.1+ 120417 H01 0.2+ 0.1- 120418 H01 0.1- 0.1-
120416 703 0.3+ 0.0 120417 H01 0.2+ 0.1- 120418 H01 0.0 0.1+
120416 703 0.6+ 1.3+ 120418 807 0.1- 0.3- 120418 474 0.3+ 0.1-
120416 703 0.8+ 0.1- 120418 807 0.2+ 0.1+ 120418 474 0.2+ 0.1-
120416 703 0.3+ 0.1- 120418 807 0.1- 0.0 120418 474 0.0 0.1-
120416 703 0.7- 0.6- 120418 807 0.1+ 0.1- 120419 821 0.3- 0.0
120416 703 0.1- 0.4- 120418 807 0.4+ 0.0 120419 821 0.1- 0.0
120416 703 1.2- 0.4- 120418 807 0.1- 0.0 120419 821 0.3- 0.1-
120416 703 0.0 0.8- 120418 807 0.1+ 0.2+ 120419 474 0.1+ 0.1-
120417 807 0.3+ 0.0 120418 H36 0.7- 0.6+ 120419 474 0.3+ 0.1+
120417 807 0.4+ 0.1+ 120418 H36 0.6+ 0.6+ 120419 474 0.1+ 0.1+
120417 807 0.2+ 0.0 120418 H36 0.2+ 0.0 120419 474 0.0 0.2-
120417 807 0.2+ 0.1- 120418 703 0.5+ 0.1+ 120419 474 0.1+ 0.1-
120417 H21 0.1+ 0.1- 120418 703 0.9- 0.3+ 120419 474 0.3+ 0.0
120417 H21 0.1+ 0.3- 120418 703 0.6- 0.5+
120417 H21 0.1+ 0.0 120418 703 1.4- 0.5-
Ephemeris:
2012 HJ1 a,e,i = 2.04, 0.62, 32 q = 0.7821
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 03 20 15 34 18.6 -04 09 32 1.3095 2.0586 125.9 23.1 20.8
...
2012 04 04 15 27 29.8 -05 12 49 1.0597 1.9454 141.6 18.6 20.1
...
2012 04 12 15 18 41.3 -06 00 45 0.9416 1.8826 151.1 14.9 19.7
...
2012 04 18 15 09 09.3 -06 46 41 0.8619 1.8343 158.8 11.4 19.3
2012 04 19 15 07 18.0 -06 55 20 0.8494 1.8261 160.1 10.8 19.2
2012 04 20 15 05 22.0 -07 04 18 0.8372 1.8180 161.4 10.1 19.2
...
2012 04 26 14 52 05.7 -08 04 55 0.7696 1.7684 169.3 6.0 18.7
...
2012 05 04 14 29 59.7 -09 45 20 0.6957 1.7007 172.8 4.3 18.3
...
2012 05 19 13 38 06.2 -13 47 18 0.6119 1.5694 149.3 19.2 18.5
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-H23
Read MPEC 2012-H22
Read MPEC 2012-H24
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)