MPEC 2020-C02 : 2015 DJ155
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M.P.E.C. 2020-C02 Issued 2020 February 1, 02:48 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 DJ155
Revision to MPEC 2015-D50
Additional Observations:
K15DF5J C2020 01 31.17365 06 36 40.24 +63 46 03.4 18.8 GVEC002703
K15DF5J C2020 01 31.17899 06 36 57.83 +63 44 49.6 18.7 GVEC002703
K15DF5J C2020 01 31.18436 06 37 15.39 +63 43 36.2 19.4 GVEC002703
K15DF5J C2020 01 31.18973 06 37 33.18 +63 42 22.4 19.0 GVEC002703
K15DF5J C2020 01 31.24306 06 40 26.39 +63 29 47.1 18.4 GVEC002I52
K15DF5J C2020 01 31.24361 06 40 28.14 +63 29 39.4 18.5 GVEC002I52
K15DF5J C2020 01 31.24416 06 40 29.99 +63 29 31.5 18.6 GVEC002I52
K15DF5J C2020 01 31.24472 06 40 31.76 +63 29 23.4 18.5 GVEC002I52
K15DF5J C2020 01 31.72456 07 06 02.66 +61 24 31.4 18.5 VVEC002033
K15DF5J C2020 01 31.72514 07 06 04.31 +61 24 22.4 18.5 VVEC002033
K15DF5J C2020 01 31.72571 07 06 05.94 +61 24 13.7 18.5 VVEC002033
K15DF5J KC2020 01 31.77199 07 08 18.57 +61 12 17.9 VEC002204
K15DF5J KC2020 01 31.77591 07 08 29.47 +61 11 16.2 18.6 GVEC002204
K15DF5J KC2020 01 31.78132 07 08 44.34 +61 09 51.2 VEC002204
K15DF5J KC2020 01 31.78524 07 08 55.20 +61 08 49.0 VEC002204
K15DF5J C2020 01 31.84735 07 11 41.99 +60 51 57.3 18.5 VVEC002033
K15DF5J C2020 01 31.84792 07 11 43.50 +60 51 48.2 18.2 VVEC002033
K15DF5J C2020 01 31.84847 07 11 44.99 +60 51 39.0 18.3 VVEC002033
K15DF5J KC2020 01 31.87637 07 13 01.45 +60 44 23.4 19.2 VqEC002C77
K15DF5J KC2020 01 31.87934 07 13 09.35 +60 43 34.4 19.3 VqEC002C77
K15DF5J KC2020 01 31.88234 07 13 17.15 +60 42 44.6 18.9 VqEC002C77
K15DF5J KC2020 01 31.92114707 14 59.16 +60 32 00.1 18.7 GVEC002C95
K15DF5J KC2020 01 31.92590 07 15 10.22 +60 30 32.7 VEC002587
K15DF5J KC2020 01 31.92664 07 15 12.12 +60 30 20.2 VEC002587
K15DF5J KC2020 01 31.92924 07 15 18.85 +60 29 36.4 18.8 GVEC002587
K15DF5J KC2020 01 31.93178607 15 26.68 +60 29 01.3 17.6 GVEC002C95
K15DF5J KC2020 01 31.94240407 15 54.09 +60 26 01.6 18.7 GVEC002C95
K15DF5J KC2020 01 31.94544 07 16 04.42 +60 25 13.0 19.0 VqEC002958
K15DF5J KC2020 01 31.94901 07 16 13.46 +60 24 12.2 19.0 VqEC002958
K15DF5J KC2020 01 31.95628 07 16 32.19 +60 22 08.8 18.5 VqEC002958
K15DF5J C2020 01 31.98409 07 17 39.87 +60 13 38.1 18.3 VVEC002033
K15DF5J C2020 01 31.98464 07 17 41.31 +60 13 28.5 18.2 VVEC002033
K15DF5J C2020 01 31.98521 07 17 42.73 +60 13 18.8 18.2 VVEC002033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector + CCD.
587 Sormano. Observers A. Testa, G. Ventre. Measurer A. Testa. 0.5-m f/6.8
reflector + CCD.
703 Catalina Sky Survey. Observer T. A. Pruyne. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman,
F. C. Shelly, K. W. Wierzchos. 0.68-m Schmidt + 10K CCD.
958 Observatoire de Dax. Observer P. Dupouy. 0.51-m f/6 reflector + CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/4.0 reflector + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m f/3.2
Newtonian reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
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
200131 703 9.75- 0.39- 200131 033 9.31- 1.75- MPO349336 -0.33 days
Orbital elements:
2015 DJ155 Earth MOID = 0.0326 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 58.54489 (2000.0) P Q
n 0.39425967 Peri. 126.76797 -0.09051222 -0.99505838
a 1.8419640 Node 328.35182 +0.88713504 -0.06193368
e 0.4827014 Incl. 4.46204 +0.45254719 -0.07760828
P 2.50 H 23.9 G 0.15 U 1
Residuals in seconds of arc
150219 G96 0.4- 0.2+ 150221 G96 0.1+ 0.4+ 200131 204 0.2- 0.1+
150219 G96 0.2- 0.4+ 150221 G96 0.0 0.2+ 200131 204 0.1+ 0.2-
150219 G96 0.1- 0.1+ 150226 705 0.3- 0.3- 200131 033 0.2- 0.3-
150219 G96 0.1+ 0.3+ 150226 705 0.9+ 0.3- 200131 033 0.3- 0.1-
150219 G96 0.1- 0.2- 150226 705 1.1- 0.8+ 200131 033 0.2- 0.3-
150219 G96 0.0 0.2+ 150325 568 0.1- 0.0 200131 C77 0.2+ 0.4+
150219 G96 0.0 0.3+ 150325 568 0.1+ 0.0 200131 C77 0.8+ 0.3+
150219 204 0.2- 0.5- 200131 703 0.1+ 0.1+ 200131 C77 0.1+ 0.1-
150219 033 0.8+ 0.6- 200131 703 0.1+ 0.5- 200131 C95 0.2+ 0.0
150219 033 0.1+ 0.5- 200131 703 0.6- 0.1+ 200131 587 0.4+ 0.0
150219 204 0.1- 0.3+ 200131 703 0.5+ 0.5+ 200131 587 0.2+ 0.0
150219 204 0.1- 0.4- 200131 I52 0.3- 0.1- 200131 587 0.2+ 0.1+
150219 033 0.3+ 0.2- 200131 I52 0.4- 0.1+ 200131 C95 0.2+ 0.2+
150219 033 0.2- 0.1+ 200131 I52 0.1+ 0.2+ 200131 C95 0.4+ 0.0
150220 G96 0.2- 0.1- 200131 I52 0.1- 0.1+ 200131 958 0.4+ 0.8+
150220 G96 0.6+ 0.2+ 200131 033 0.4- 0.3- 200131 958 0.6- 0.3+
150220 G96 0.3- 0.3+ 200131 033 0.4- 0.3- 200131 958 0.1+ 0.1-
150220 H36 0.6- 0.6- 200131 033 0.4- 0.1- 200131 033 0.3- 0.2-
150220 H36 0.7+ 0.5+ 200131 204 0.3+ 0.2- 200131 033 0.1- 0.3-
150221 G96 0.3+ 0.2- 200131 204 0.5+ 0.2- 200131 033 0.4- 0.1-
Ephemeris:
2015 DJ155 a,e,i = 1.84, 0.48, 4 q = 0.9528
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 02 22 52 15.8 +19 54 37 0.1442 0.9528 73.6 98.0 23.1
...
2020 01 17 23 26 09.1 +34 35 06 0.07768 0.9668 75.3 100.3 21.9
...
2020 01 25 00 47 51.0 +55 42 26 0.04767 0.9879 92.9 84.3 20.2
...
2020 01 31 06 26 11.3 +64 23 36 0.03921 1.0093 127.3 50.9 18.8
2020 02 01 07 18 28.5 +60 08 59 0.03997 1.0133 133.8 44.5 18.6
2020 02 02 07 55 57.0 +55 11 58 0.04138 1.0174 140.0 38.5 18.6
...
2020 02 08 09 24 59.2 +29 54 14 0.05978 1.0442 165.4 13.8 18.7
...
2020 02 16 09 54 06.4 +14 33 21 0.09750 1.0852 178.1 1.7 19.2
...
2020 03 02 10 10 06.1 +05 06 24 0.1858 1.1742 169.4 9.0 21.2
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-C02
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