MPEC 2018-K39 : 2015 KJ19
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M.P.E.C. 2018-K39 Issued 2018 May 20, 02:17 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2015 KJ19
Revision to MPEC 2015-K50
Additional Observations:
K15K19J C2018 05 19.28118 13 54 22.59 +21 01 24.2 18.2 GUEK039703
K15K19J C2018 05 19.28641 13 54 27.07 +20 59 17.2 18.8 GUEK039703
K15K19J C2018 05 19.29165 13 54 31.27 +20 57 13.8 UEK039703
K15K19J C2018 05 19.29688 13 54 35.57 +20 55 06.6 18.3 GUEK039703
K15K19J C2018 05 19.34672 13 55 16.56 +20 35 19.0 17.9 GUEK039I52
K15K19J C2018 05 19.34691 13 55 16.70 +20 35 15.0 18.2 GUEK039I52
K15K19J C2018 05 19.34709 13 55 16.85 +20 35 10.7 18.1 GUEK039I52
K15K19J C2018 05 19.34727 13 55 16.99 +20 35 06.2 18.2 GUEK039I52
K15K19J C2018 05 19.42680 13 56 21.87 +20 03 59.4 17.6 GUEK039I52
K15K19J C2018 05 19.42698 13 56 22.02 +20 03 55.4 17.6 GUEK039I52
K15K19J C2018 05 19.42716 13 56 22.14 +20 03 50.9 17.6 GUEK039I52
K15K19J C2018 05 19.42735 13 56 22.31 +20 03 46.7 17.4 GUEK039I52
K15K19J C2018 05 19.51727 13 57 43.86 +19 29 57.8 19.1 RrEK039P93
K15K19J C2018 05 19.51842 13 57 44.77 +19 29 33.2 18.9 RrEK039P93
K15K19J C2018 05 19.51900 13 57 45.21 +19 29 19.4 18.7 RrEK039P93
K15K19J KC2018 05 19.85206 14 01 57.36 +17 29 20.2 17.6 RqEK039A17
K15K19J KC2018 05 19.85369 14 01 58.50 +17 28 46.2 17.9 RqEK039A17
K15K19J KC2018 05 19.85532 14 01 59.63 +17 28 12.3 17.9 RqEK039A17
K15K19J KC2018 05 19.85861 14 02 01.88 +17 27 04.5 17.9 RqEK039A17
K15K19J KC2018 05 19.87032 14 02 09.66 +17 23 15.0 18.6 RqEK039160
K15K19J KC2018 05 19.87272 14 02 11.31 +17 22 25.8 18.6 RqEK039160
K15K19J KC2018 05 19.87473 14 02 12.69 +17 21 44.5 18.6 RqEK039160
K15K19J KC2018 05 19.87675 14 02 14.05 +17 21 03.0 18.7 RqEK039160
K15K19J KC2018 05 19.87878 14 02 15.40 +17 20 22.1 18.1 RqEK039160
Observer details:
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
703 Catalina Sky Survey. Observer B. M. Africano. Measurers B. M. Africano,
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
F. C. Shelly. 0.68-m Schmidt + 10K CCD.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer B. M. Africano.
Measurers B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs,
A. D. Grauer, H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson,
G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
P93 Space Tracking and Communications Center, JAXA. Observers T. Nimura,
A. Asami. 1.0-m f/3.0 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
180519 703 6.90+ 3.00- 180519 160 6.29+ 2.83- MPO369260 -0.46 day
Orbital elements:
2015 KJ19 Earth MOID = 0.0361 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 357.88538 (2000.0) P Q
n 0.32881721 Peri. 29.68774 -0.71954915 -0.69314314
a 2.0788972 Node 106.36793 +0.62810513 -0.67566753
e 0.7447299 Incl. 2.53549 +0.29619750 -0.25104975
P 3.00 H 22.4 G 0.15 U 2
Residuals in seconds of arc
150520 703 0.1+ 0.3- 150521 I52 0.1+ 0.4+ 150525 I52 0.0 0.2+
150520 703 (1.9+ 0.6-) 150521 I52 0.0 0.2+ 150525 I52 0.0 0.2+
150520 703 0.8- 0.8+ 150521 I52 0.1- 0.4+ 150525 I52 0.2+ 0.2+
150520 703 0.2+ 0.5- 150521 300 0.8+ 0.2+ 150527 H21 0.2- 0.4+
150520 H01 0.0 0.2- 150521 300 0.4+ 0.0 150527 H21 0.1- 0.2+
150520 H01 0.1+ 0.3- 150521 300 0.5- 0.4- 150527 H21 0.1- 0.2+
150520 H01 0.1- 0.3- 150521 300 0.4- 0.7+ 150527 204 0.3+ 0.3-
150520 H01 0.0 0.3- 150521 B18 0.3+ 0.2- 150527 204 0.6- 0.1-
150520 291 0.1+ 0.4+ 150521 B18 0.2+ 0.0 150528 807 0.1- 1.0-
150520 291 0.0 0.6+ 150521 B18 0.0 0.3+ 150528 807 0.1- 0.9-
150520 291 0.3+ 0.3+ 150521 B74 0.4+ 0.0 150528 807 0.1+ 0.3-
150520 I52 0.2+ 0.9+ 150521 J95 0.4- 0.1+ 150528 H21 0.5+ 0.6+
150520 I52 0.2+ 0.4+ 150521 J95 0.3+ 0.0 150528 H21 0.1+ 0.5-
150520 I52 0.6+ 0.6+ 150521 B74 0.8+ 0.3- 150528 H21 0.3+ 0.2+
150520 I52 0.3+ 0.3+ 150521 J95 0.1- 0.2- 150612 H21 0.8+ 0.8-
150520 300 0.1- 0.0 150521 B74 0.5+ 0.8+ 150612 H21 0.6+ 0.3+
150520 300 0.4+ 0.1- 150522 H21 0.1- 0.1- 150618 568 0.0 0.0
150520 300 0.2+ 0.4- 150522 H21 0.2- 0.0 150618 568 0.0 0.0
150520 300 0.7- 0.9+ 150522 H21 0.3- 0.1- 180519 703 0.1- 0.3+
150520 300 0.6- 0.0 150522 H21 0.3- 0.1- 180519 703 (2.0+ 1.1-)
150520 104 0.1+ 0.1+ 150522 H21 0.2- 0.0 180519 703 0.1+ 1.3+
150520 104 0.1+ 0.5- 150522 I52 0.4+ 0.6- 180519 703 0.2- 0.6-
150520 104 0.0 0.4- 150522 I52 0.2+ 0.2+ 180519 I52 0.3+ 0.6-
150520 511 0.7+ 0.3- 150522 I52 0.1+ 0.2+ 180519 I52 0.1+ 0.1-
150520 511 0.8- 0.3+ 150522 926 0.2- 0.5+ 180519 I52 0.1+ 0.1-
150520 511 0.7+ 0.6- 150522 I52 0.2+ 0.2- 180519 I52 0.0 0.4-
150520 511 0.2- 0.3- 150522 926 0.2- 0.3+ 180519 I52 0.3+ 0.3-
150520 511 (0.3+ 1.7-) 150522 926 0.4+ 0.3+ 180519 I52 0.4+ 0.1-
150520 511 0.4- 0.5- 150522 926 0.4+ 0.1+ 180519 I52 0.0 0.4-
150520 511 0.3- 0.1- 150522 926 0.5+ 0.2- 180519 I52 0.2+ 0.2-
150520 511 0.6- 0.5+ 150522 926 0.1- 0.2+ 180519 P93 0.6- 1.1+
150520 511 0.6- 0.1+ 150522 474 0.4- 0.1- 180519 P93 (0.1- 2.3+)
150520 511 0.4- 0.2- 150522 474 0.4- 0.3- 180519 P93 (0.1- 1.5+)
150520 511 0.3+ 1.5- 150522 474 0.3+ 0.0 180519 A17 0.3- 0.5+
150520 511 0.2+ 0.5- 150522 474 0.4+ 0.3- 180519 A17 0.0 0.0
150520 511 0.3- 0.2+ 150522 474 0.2- 0.7+ 180519 A17 0.3+ 0.4-
150520 J95 0.2- 0.5- 150525 926 0.2- 0.3+ 180519 A17 0.3+ 0.7-
150520 J95 0.1- 0.1- 150525 926 0.4+ 0.4+ 180519 160 0.9- 0.2-
150520 J95 0.0 0.0 150525 926 0.3+ 0.2+ 180519 160 0.5- 0.3-
150520 I93 0.3- 0.1- 150525 703 1.2+ 0.9+ 180519 160 0.1- 0.5-
150520 I93 0.1+ 0.3- 150525 703 0.5- 0.6+ 180519 160 0.1- 0.7-
150520 I93 0.2+ 0.3- 150525 703 0.3+ 0.1+ 180519 160 0.4- 0.1-
150521 I52 0.2- 0.3+ 150525 I52 0.2+ 0.1-
Ephemeris:
2015 KJ19 a,e,i = 2.08, 0.74, 3 q = 0.5307
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 04 20 03 17 40.2 +23 00 22 0.3734 0.6801 23.9 143.3 26.7
...
2018 05 05 03 48 28.7 +33 42 55 0.1510 0.8708 22.4 153.8 27.2
...
2018 05 13 06 27 12.2 +61 06 17 0.05864 0.9772 54.2 123.1 21.3
...
2018 05 19 13 50 05.7 +22 58 42 0.06854 1.0565 129.4 47.7 18.5
2018 05 20 14 03 38.5 +16 40 49 0.07875 1.0696 135.7 41.4 18.6
2018 05 21 14 13 24.3 +11 49 51 0.08990 1.0826 140.2 36.7 18.8
...
2018 05 27 14 40 57.3 -02 28 34 0.1657 1.1603 150.6 25.4 20.0
...
2018 06 04 14 54 33.6 -08 59 20 0.2765 1.2613 150.0 23.7 21.2
...
2018 06 19 15 08 41.7 -13 41 51 0.5032 1.4422 141.0 26.3 22.9
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-K39
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