[Iaude] MPEC B158: 2012 PS4 [a=1.77,e=0.59,i=3.9,H=21.2,PHA]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Thu Jan 31 07:47:17 EST 2019
M.P.E.C. 2019-B158 Issued 2019 Jan. 31, 12:43 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 PS4
Revision to MPEC 2012-P22
Additional Observations:
K12P04S C2019 01 03.33164605 27 18.803+23 56 42.44 23.62GVEB158T14
K12P04S C2019 01 03.33421205 27 18.492+23 56 42.51 23.61GVEB158T14
K12P04S C2019 01 03.33684905 27 18.172+23 56 42.53 23.68GVEB158T14
K12P04S KC2019 01 08.35200805 17 41.153+23 57 10.74 24.63GVEB158T12
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m). Observer D. Hung. Measurer
D. J. Tholen. 2.24-m f/10.1 reflector + CCD.
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observer C. Wipper. Measurer
D. J. Tholen. 3.6-m f/4.1 reflector + MegaCam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
190103 T14 0.05- 0.01- 190108 T12 0.04- 0.01- MPO242008 +0.12 day
Orbital elements:
2012 PS4 PHA, Earth MOID = 0.0461 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 333.83298 (2000.0) P Q
n 0.41940074 Peri. 144.18666 -0.63568808 +0.76889806
a 1.7675970 Node 86.23991 -0.72327169 -0.56222861
e 0.5927301 Incl. 3.93808 -0.26977533 -0.30445816
P 2.35 H 21.2 G 0.15 U 2
Residuals in seconds of arc
120807 E12 0.1+ 0.1- 120809 E23 0.3- 0.1+ 120817 474 0.1- 0.2+
120807 E12 0.3+ 0.0 120809 E23 1.2- 0.8+ 120817 474 0.0 0.4+
120807 E12 0.1- 0.0 120809 E23 0.0 0.4+ 120817 E12 0.1+ 0.1-
120807 E12 0.3+ 0.1+ 120810 807 0.2+ 0.0 120821 E12 0.0 0.1-
120807 E12 0.4- 0.2- 120810 807 0.2+ 0.1- 120821 E12 0.1- 0.1-
120807 E12 0.1+ 0.0 120810 807 0.0 0.1+ 120822 474 0.1- 0.1+
120808 954 0.1+ 0.0 120810 807 0.1+ 0.0 120822 474 0.1+ 0.6+
120808 954 0.4- 0.1+ 120810 H36 0.3+ 0.1- 120822 474 0.0 0.2+
120808 954 0.0 0.1+ 120810 H36 0.0 0.1+ 120822 474 0.1+ 0.1+
120808 954 0.1+ 0.4+ 120810 H36 0.2+ 0.0 120822 474 0.4+ 0.1+
120808 D90 0.3- 0.1- 120810 E12 0.1- 0.1- 120822 474 0.1- 0.2+
120808 D90 0.4- 0.0 120810 E12 0.0 0.0 120823 474 0.1- 0.2+
120808 D90 0.3- 0.0 120812 D90 0.2- 0.0 120823 474 0.0 0.2+
120809 821 0.1- 0.0 120812 D90 0.1- 0.1- 120823 474 0.1- 0.2+
120809 821 0.1- 0.0 120812 D90 0.1+ 0.1+ 120823 474 0.1+ 0.2+
120809 821 0.1- 0.0 120813 E12 0.1+ 0.2- 120823 474 0.0 0.1+
120809 807 0.0 0.2+ 120813 E12 0.4+ 0.1- 120912 807 0.5- 0.3+
120809 807 0.0 0.1+ 120814 E12 0.1- 0.2- 120912 807 0.1- 0.1-
120809 807 0.1+ 0.1+ 120814 E12 0.1+ 0.2- 120912 807 0.0 0.1+
120809 807 0.2- 0.2+ 120816 E12 0.0 0.1- 190103 T14 0.0 0.1-
120809 E12 0.3- 0.1- 120816 E12 0.1- 0.0 190103 T14 0.0 0.1-
120809 E23 (1.3+ 2.1+) 120817 474 0.0 0.5+ 190103 T14 0.0 0.1-
120809 E23 0.6- 0.5+ 120817 474 0.1+ 0.4+ 190108 T12 0.0 0.1-
120809 E23 1.4+ 0.6+ 120817 474 0.0 0.3+
Ephemeris:
2012 PS4 a,e,i = 1.77, 0.59, 4 q = 0.7199
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 01 01 05 31 55.8 +23 55 46 1.1165 2.0784 163.6 7.7 23.6
...
2019 01 16 05 04 25.6 +23 54 54 1.1114 1.9814 142.0 17.8 23.8
...
2019 01 24 04 53 08.8 +23 51 08 1.1296 1.9268 131.3 22.6 24.0
...
2019 01 30 04 46 45.4 +23 49 06 1.1500 1.8845 123.8 25.8 24.1
2019 01 31 04 45 52.5 +23 48 54 1.1538 1.8773 122.5 26.3 24.1
2019 02 01 04 45 02.8 +23 48 46 1.1578 1.8702 121.3 26.7 24.1
...
2019 02 07 04 41 11.9 +23 49 20 1.1831 1.8263 114.4 29.5 24.2
...
2019 02 15 04 39 00.7 +23 54 18 1.2196 1.7659 105.8 32.6 24.2
...
2019 03 02 04 43 14.4 +24 16 56 1.2864 1.6470 91.7 37.0 24.3
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-B158
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