[Iaude] MPEC H50: 2015 KJ122 [a=0.79,e=0.75,i=5.1,H=22.0,PHA]
mpec at si.edu
mpec at si.edu
Sun Apr 23 09:37:41 EDT 2017
M.P.E.C. 2017-H50 Issued 2017 Apr. 23, 13:34 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
2015 KJ122
Revision to MPEC 2015-K116
Additional Observations:
K15KC2J KC2017 04 21.59783817 01 25.65 -10 14 01.0 19.8 RtEH050474
K15KC2J KC2017 04 21.60023617 01 24.48 -10 13 56.4 20.1 RtEH050474
K15KC2J KC2017 04 21.60351217 01 22.86 -10 13 50.8 20.1 RtEH050474
K15KC2J KC2017 04 21.60590917 01 21.68 -10 13 46.7 20.1 RtEH050474
K15KC2J C2017 04 22.46229 16 54 23.72 -09 48 47.6 20.7 RoEH050926
K15KC2J C2017 04 22.46585 16 54 21.92 -09 48 41.1 20.6 RoEH050926
K15KC2J C2017 04 22.46940 16 54 20.13 -09 48 34.7 20.6 RoEH050926
K15KC2J KC2017 04 22.53105716 53 51.49 -09 46 00.5 20.5 RtEH050474
K15KC2J KC2017 04 22.53345416 53 50.28 -09 45 56.3 20.4 RtEH050474
K15KC2J KC2017 04 22.53585116 53 49.07 -09 45 51.8 20.4 RtEH050474
K15KC2J C2017 04 23.45291 16 46 14.36 -09 18 18.7 21.2 RoEH050926
K15KC2J C2017 04 23.45696 16 46 12.30 -09 18 11.1 21.5 RoEH050926
K15KC2J C2017 04 23.46100 16 46 10.25 -09 18 03.8 21.6 RoEH050926
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.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170421 474 14.2+ 5.2- 170423 926 17.3+ 5.7- MPO342336 -0.0021 day
Orbital elements:
2015 KJ122 PHA, Earth MOID = 0.0317 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 13.38697 (2000.0) P Q
n 1.41616774 Peri. 229.67727 +0.53508749 -0.84470712
a 0.7853434 Node 188.00103 +0.79941438 +0.51099649
e 0.7503054 Incl. 5.06926 +0.27316299 +0.15922459
P 0.70 H 22.0 G 0.15 U 6
Residuals in seconds of arc
150519 F51 0.1+ 0.2- 150524 926 0.3- 0.1+ 150613 291 0.0 0.0
150519 F51 1.1+ 0.3- 150524 926 0.2- 0.1+ 150613 291 0.4- 0.7-
150520 291 0.3- 0.0 150527 291 0.2- 0.2+ 150613 291 0.1- 0.0
150520 291 0.4- 0.2+ 150527 291 0.0 0.0 170421 474 0.1- 0.2-
150520 291 0.0 0.2- 150527 291 0.1+ 0.2- 170421 474 0.0 0.2+
150520 926 0.1+ 0.2- 150527 926 0.0 0.0 170421 474 0.0 0.0
150520 926 0.0 0.1- 150527 926 0.2- 0.2+ 170421 474 0.0 0.1-
150520 568 0.4- 0.1- 150527 926 0.2- 0.1+ 170422 926 0.2+ 0.2+
150520 568 0.4- 0.0 150529 291 0.1- 0.1- 170422 926 0.0 0.2+
150520 568 0.3- 0.1- 150529 291 0.0 0.0 170422 926 0.1- 0.1+
150520 568 0.4- 0.0 150529 291 0.1- 0.0 170422 474 0.2+ 0.1-
150520 568 0.6- 0.0 150606 291 0.5+ 0.4+ 170422 474 0.0 0.3-
150520 568 0.5- 0.0 150606 291 0.2- 0.2+ 170422 474 0.2- 0.1-
150520 568 0.4- 0.1- 150606 291 0.7+ 0.4+ 170423 926 0.0 0.3+
150520 568 0.5- 0.0 150609 H21 0.0 0.0 170423 926 0.1+ 0.3+
150520 568 0.5- 0.0 150609 H21 0.4+ 0.5+ 170423 926 0.2+ 0.0
150524 926 0.2+ 0.4- 150609 H21 0.5- 0.5+
Ephemeris:
2015 KJ122 a,e,i = 0.79, 0.75, 5 q = 0.1961
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 03 24 19 33 23.5 -17 49 36 0.3814 0.9452 71.1 86.4 22.8
...
2017 04 08 18 32 13.6 -15 15 26 0.3074 1.0980 100.2 63.8 21.9
...
2017 04 16 17 43 40.1 -12 42 59 0.2748 1.1634 119.4 48.7 21.3
...
2017 04 22 16 58 10.4 -10 02 23 0.2603 1.2059 135.9 35.4 20.9
2017 04 23 16 49 59.7 -09 32 00 0.2591 1.2125 138.8 33.1 20.9
2017 04 24 16 41 42.2 -09 00 49 0.2584 1.2189 141.7 30.8 20.8
...
2017 04 30 15 51 15.1 -05 45 07 0.2627 1.2545 157.9 17.6 20.5
...
2017 05 08 14 50 29.6 -01 49 12 0.2933 1.2943 164.6 11.9 20.6
...
2017 05 23 13 38 34.0 +02 03 28 0.4081 1.3469 138.9 29.6 22.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-H50
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