MPEC 2019-U285 : 2019 US12
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M.P.E.C. 2019-U285 Issued 2019 October 31, 11:24 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
2019 US12
Observations:
K19U12S C2016 08 07.49489622 24 21.682-19 11 52.30 22.7 GVEU285F51
K19U12S C2016 08 07.50593922 24 20.709-19 11 55.28 22.3 GVEU285F51
K19U12S C2016 08 11.50168322 18 41.926-19 33 18.79 23.7 GVEU285F51
K19U12S C2016 08 11.51306522 18 40.937-19 33 21.95 23.0 GVEU285F51
K19U12S C2016 08 11.52445122 18 39.914-19 33 25.54 22.2 GVEU285F51
K19U12S C2018 07 10.48159221 07 33.404-33 57 59.57 21.8 GVEU285F51
K19U12S C2018 07 10.49064221 07 32.416-33 58 02.21 22.1 GVEU285F51
K19U12S C2018 07 10.49968021 07 31.421-33 58 05.51 21.9 GVEU285F51
K19U12S C2018 07 10.50872621 07 30.447-33 58 08.45 21.8 GVEU285F51
K19U12S C2019 10 08.38868402 48 34.692+31 00 16.58 22.6 GVEU285F51
K19U12S C2019 10 08.39919102 48 34.050+31 00 23.28 22.1 GVEU285F51
K19U12S C2019 10 08.40968302 48 33.400+31 00 30.09 22.1 GVEU285F51
K19U12S C2019 10 19.35639602 34 01.711+32 45 34.86 22.5 GVEU285F51
K19U12S C2019 10 19.37031002 34 00.250+32 45 41.86 21.6 GVEU285F51
K19U12S C2019 10 19.38496702 33 58.715+32 45 49.63 21.8 GVEU285F51
K19U12S* C2019 10 28.36125102 16 23.564+33 48 26.74 21.54wUEU285F51
K19U12S C2019 10 28.37304302 16 21.933+33 48 30.65 21.03wUEU285F51
K19U12S C2019 10 28.38484602 16 20.306+33 48 34.41 21.55wUEU285F51
K19U12S C2019 10 28.39672702 16 18.653+33 48 38.47 21.02wUEU285F51
K19U12S C2019 10 29.17415 02 14 34.68 +33 52 30.3 21.0 GVEU285I52
K19U12S C2019 10 29.17581 02 14 34.42 +33 52 30.4 20.9 GVEU285I52
K19U12S C2019 10 29.17747 02 14 34.22 +33 52 30.7 20.6 GVEU285I52
K19U12S KC2019 10 29.21651 02 14 28.67 +33 52 44.4 oEU285711
K19U12S KC2019 10 29.22019 02 14 28.14 +33 52 45.2 oEU285711
K19U12S KC2019 10 29.22426 02 14 27.57 +33 52 46.5 oEU285711
K19U12S 1C2019 10 29.24503 02 14 24.81 +33 52 48.6 LEU285658
K19U12S 1C2019 10 29.24712 02 14 24.54 +33 52 49.2 LEU285658
K19U12S 1C2019 10 29.25127 02 14 24.00 +33 52 50.6 LEU285658
K19U12S 1C2019 10 29.25334 02 14 23.68 +33 52 51.2 LEU285658
K19U12S 1C2019 10 29.25543 02 14 23.43 +33 52 51.9 LEU285658
K19U12S C2019 10 30.19833 02 12 14.32 +33 57 15.3 21.2 GVEU285I52
K19U12S C2019 10 30.20000 02 12 14.13 +33 57 15.9 21.0 GVEU285I52
K19U12S C2019 10 30.20167 02 12 13.85 +33 57 15.8 21.3 GVEU285I52
K19U12S C2019 10 30.20333 02 12 13.68 +33 57 16.8 20.9 GVEU285I52
K19U12S 1C2019 10 30.27919 02 12 02.92 +33 57 33.8 LEU285658
K19U12S 1C2019 10 30.28059 02 12 02.72 +33 57 34.2 LEU285658
K19U12S 1C2019 10 30.28203 02 12 02.51 +33 57 34.5 LEU285658
K19U12S 1C2019 10 30.28343 02 12 02.30 +33 57 34.9 LEU285658
K19U12S 1C2019 10 30.28485 02 12 02.08 +33 57 35.2 LEU285658
K19U12S C2019 10 31.18459 02 09 56.63 +34 01 21.4 21.1 GVEU285I52
K19U12S C2019 10 31.18625 02 09 56.41 +34 01 21.9 21.2 GVEU285I52
K19U12S C2019 10 31.18792 02 09 56.16 +34 01 21.7 21.8 GVEU285I52
Observer details:
658 National Research Council of Canada. Observer D. D. Balam. 1.82-m
reflector + CCD.
711 McDonald Observatory, Fort Davis. Observers J. G. Ries, A. Assaf.
Measurer J. G. Ries. 2.1-m reflector + CCD + focal reducer.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, E.
Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien +
CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers T. A. Pruyne, D.
Rankin. 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.
Orbital elements:
2019 US12 Earth MOID = 0.0996 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 Veres
M 218.17232 (2000.0) P Q
n 0.43645580 Peri. 166.19410 -0.92745399 -0.37288957
a 1.7212444 Node 351.74685 +0.32192026 -0.75814228
e 0.4938813 Incl. 11.23695 +0.19025363 -0.53495201
P 2.26 H 20.0 G 0.15 U 2
Residuals in seconds of arc
160807 F51 0.6+ 0.4- 191019 F51 0.0 0.0 191029 658 0.1+ 0.4+
160807 F51 0.1+ 0.2+ 191028 F51 0.0 0.1- 191029 658 0.6+ 0.5+
160811 F51 0.3- 0.2- 191028 F51 0.0 0.1- 191030 I52 0.6- 0.1-
160811 F51 0.0 0.2+ 191028 F51 0.1+ 0.1- 191030 I52 0.0 0.0
160811 F51 0.2- 0.1+ 191028 F51 0.0 0.1+ 191030 I52 0.5- 0.5-
180710 F51 0.0 0.3- 191029 I52 0.1+ 0.4+ 191030 I52 0.4+ 0.0
180710 F51 0.0 0.2+ 191029 I52 0.2- 0.0 191030 658 0.2+ 0.3-
180710 F51 0.1- 0.0 191029 I52 0.1+ 0.3- 191030 658 0.1+ 0.3-
180710 F51 0.1+ 0.1+ 191029 711 0.1- 0.6+ 191030 658 0.1+ 0.4-
191008 F51 0.0 0.1+ 191029 711 0.3- 0.3+ 191030 658 0.0 0.3-
191008 F51 0.1+ 0.0 191029 711 0.3- 0.3+ 191030 658 0.3- 0.4-
191008 F51 0.2+ 0.1+ 191029 658 0.3- 0.4+ 191031 I52 0.5- 0.1-
191019 F51 0.0 0.2+ 191029 658 0.0 0.3+ 191031 I52 0.2- 0.1-
191019 F51 0.0 0.1- 191029 658 0.4+ 0.5+ 191031 I52 0.3- 0.7-
Ephemeris:
2019 US12 a,e,i = 1.72, 0.49, 11 q = 0.8712
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 10 01 02 54 12.4 +29 41 08 1.0313 1.8846 136.0 21.7 22.5
...
2019 10 16 02 39 17.7 +32 15 44 0.8594 1.7946 150.3 16.0 21.8
...
2019 10 24 02 25 32.1 +33 21 37 0.7853 1.7443 156.8 13.0 21.4
...
2019 10 30 02 12 41.4 +33 56 23 0.7391 1.7055 159.6 11.7 21.2
2019 10 31 02 10 22.3 +34 00 38 0.7322 1.6990 159.8 11.7 21.2
2019 11 01 02 08 00.5 +34 04 25 0.7256 1.6924 159.8 11.7 21.2
...
2019 11 07 01 53 07.1 +34 16 19 0.6906 1.6525 158.2 12.9 21.0
...
2019 11 15 01 32 29.6 +34 02 20 0.6569 1.5980 151.6 17.1 21.0
...
2019 11 30 00 58 35.4 +32 20 08 0.6280 1.4922 133.9 28.4 21.1
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-U285
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