[Iaude] MPEC S88: 2012 JU4 [a=1.79,e=0.28,i=17.1,H=20.9]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Wed Sep 20 10:33:19 EDT 2017
M.P.E.C. 2017-S88 Issued 2017 Sept. 20, 14:29 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 http://www.minorplanetcenter.net/ ISSN 1523-6714
2012 JU4
Revision to MPEC 2012-J48
Additional Observations:
K12J04U KC2017 09 18.92599100 10 11.537+33 12 39.53 21.7 GUES088J04
K12J04U KC2017 09 18.93590400 10 11.001+33 12 25.82 22.4 GUES088J04
K12J04U KC2017 09 18.94581800 10 10.454+33 12 13.18 21.3 GUES088J04
K12J04U KC2017 09 19.91993800 09 20.115+32 50 02.43 20.9 GUES088J04
K12J04U KC2017 09 19.92985100 09 19.565+32 49 49.09 22.1 GUES088J04
K12J04U KC2017 09 19.93976500 09 18.972+32 49 35.88 22.0 GUES088J04
Observer details:
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers
M. Micheli, D. Koschny, A. Knoefel, M. Busch, E. Schwab. 1.0-m f/4.4
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170918 J04 0.08- 0.00- 170919 J04 0.08- 0.00- MPO234432 +0.060 day
Orbital elements:
2012 JU4 Earth MOID = 0.3666 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 42.23163 (2000.0) P Q
n 0.41075316 Peri. 60.31881 +0.22361092 +0.95297330
a 1.7923195 Node 224.17527 -0.96453880 +0.18616439
e 0.2755794 Incl. 17.06944 -0.14022504 +0.23913323
P 2.40 H 20.9 G 0.15 U 3
Residuals in seconds of arc
120428 G96 0.1- 0.1- 120513 G96 0.4- 0.1- 120527 G96 0.1- 0.4-
120428 G96 0.3- 0.1- 120514 291 0.3+ 0.1+ 120527 G96 0.3+ 0.5-
120428 G96 0.0 0.8- 120514 291 0.1+ 0.2+ 120527 G96 0.0 0.3+
120428 G96 0.2+ 0.1- 120514 291 0.1+ 0.2- 120615 291 0.4- 0.5-
120513 G96 0.3- 0.3- 120514 033 0.5- 0.8+ 120615 291 0.2+ 0.4+
120513 G96 0.2- 0.0 120514 033 0.9+ 0.4- 120615 291 0.4+ 0.1+
120513 G96 0.0 0.2- 120517 G96 0.1- 0.2+ 170918 J04 0.2- 0.4+
120513 G96 0.1+ 0.4- 120517 G96 0.1+ 0.4- 170918 J04 0.0 0.3-
120513 G96 0.6+ 0.7+ 120517 G96 0.6- 0.3- 170918 J04 0.2+ 0.1+
120513 G96 0.1+ 0.4- 120517 G96 0.2+ 0.6+ 170919 J04 0.1+ 0.3-
120513 291 0.0 0.2+ 120527 H21 1.2- 0.0 170919 J04 0.2+ 0.2-
120513 G96 0.4- 0.1+ 120527 H21 1.2- 0.4- 170919 J04 0.3- 0.0
120513 291 0.3+ 0.1+ 120527 G96 0.1+ 0.1-
120513 291 0.0 0.1+ 120527 H21 0.7- 0.2+
Ephemeris:
2012 JU4 a,e,i = 1.79, 0.28, 17 q = 1.2984
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 08 21 00 25 17.3 +38 43 44 0.6764 1.4635 118.9 37.3 22.4
...
2017 09 05 00 20 48.9 +37 12 01 0.6437 1.5138 131.6 29.9 22.1
...
2017 09 13 00 15 08.9 +35 12 45 0.6336 1.5419 139.1 25.3 22.0
...
2017 09 19 00 10 07.0 +33 11 02 0.6315 1.5633 144.7 21.8 21.9
2017 09 20 00 09 15.3 +32 48 14 0.6316 1.5669 145.7 21.2 21.9
2017 09 21 00 08 23.5 +32 24 46 0.6320 1.5706 146.6 20.6 21.9
...
2017 09 27 00 03 20.8 +29 51 36 0.6377 1.5923 151.6 17.4 21.9
...
2017 10 05 23 57 33.9 +26 03 36 0.6563 1.6216 156.0 14.5 21.9
...
2017 10 20 23 51 53.5 +18 45 20 0.7279 1.6768 152.9 15.7 22.2
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-S88
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