MPEC 2023-N23 : 2019 UN12
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M.P.E.C. 2023-N23 Issued 2023 July 7, 18:49 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 UN12
Revision to MPEC 2019-U282
Additional Observations:
K19U12N C2019 11 04.48288304 10 05.52 +22 18 17.1 18.83cVEN023T05
K19U12N C2019 11 04.48623704 10 05.77 +22 18 14.3 18.89cVEN023T05
K19U12N C2019 11 04.49192604 10 06.13 +22 18 10.1 19.35cVEN023T05
K19U12N C2019 11 04.50430804 10 07.04 +22 17 59.9 18.96cVEN023T05
K19U12N C2019 11 07.54219604 16 56.304+21 15 45.84 17.96wUEN023F51
K19U12N C2019 11 07.55603904 16 58.549+21 15 18.71 18.02wUEN023F51
K19U12N C2019 11 07.58355204 17 03.097+21 14 23.83 18.03wUEN023F51
K19U12N C2019 11 08.48653904 20 34.46 +20 40 31.3 17.27oVEN023T05
K19U12N C2019 11 08.49634604 20 36.72 +20 40 05.2 17.35oVEN023T05
K19U12N C2019 11 08.50030504 20 37.62 +20 39 54.0 17.41oVEN023T05
K19U12N C2019 11 08.51102904 20 40.04 +20 39 25.0 17.35oVEN023T05
K19U12N C2019 11 08.54963404 20 48.92 +20 37 37.2 17.41oVEN023T05
K19U12N C2019 11 10.40215904 33 57.42 +18 22 38.4 16.43oVEN023T08
K19U12N C2019 11 10.40542304 33 59.36 +18 22 16.1 16.24oVEN023T08
K19U12N C2019 11 10.41111004 34 02.71 +18 21 37.2 16.21oVEN023T08
K19U12N C2019 11 10.42103504 34 08.60 +18 20 29.1 16.06oVEN023T08
K19U12N C2023 07 06.15966 12 16 34.75 +37 21 27.9 20.9 GVEN023I52
K19U12N C2023 07 06.16770 12 16 53.92 +37 20 17.4 20.4 GVEN023I52
K19U12N C2023 07 06.17575 12 17 13.15 +37 19 06.9 20.7 GVEN023I52
K19U12N C2023 07 06.18381 12 17 32.40 +37 17 56.0 20.8 GVEN023I52
K19U12N 7C2023 07 06.95001712 47 42.024+35 11 53.44 20.6 GXEN023Z84
K19U12N 7C2023 07 06.96529112 48 17.156+35 09 02.51 20.5 GXEN023Z84
K19U12N 7C2023 07 06.98057012 48 52.268+35 06 10.72 20.4 GXEN023Z84
K19U12N KC2023 07 07.15647412 55 36.066+34 33 29.48 20.40GVEN023I52
K19U12N KC2023 07 07.15825712 55 40.051+34 33 08.64 20.13GVEN023I52
K19U12N KC2023 07 07.16003912 55 44.044+34 32 48.26 19.69GVEN023I52
K19U12N KC2023 07 07.16183012 55 48.040+34 32 26.95 20.22GVEN023I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer K. W. Wierzchos.
Measurers B. Gray, D. Rankin, F. C. Shelly, E. J. Christensen, D. Fay, J.
B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K.
Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, A.
Serrano, K. W. Wierzchos. 1.0-m f/2.0 prime focus + CCD, 1.0-m prime
focus + CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, J. Tonry, A. Heinze, H.
Weiland, H. Flewelling. Measurers L. Denneau, J. Tonry, A. Heinze, H.
Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, J. Robinson, D. Young,
N. Erasmus. 0.5-m reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze, H.
Weiland, H. Flewelling. Measurers L. Denneau, J. Tonry, A. Heinze, H.
Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, J. Robinson, D. Young,
N. Erasmus. 0.5-m reflector + CCD.
Z84 Calar Alto-Schmidt. Observers R. Kresken, F. Ocana, M. Micheli, L.
Conversi. Measurers F. Ocana, R. Kresken, M. Micheli. 0.8-m f/3
Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
191104 T05 0+ 0+ 230707 I52 79+ 20+ E2020-T88 -9.66 days
Orbital elements:
2019 UN12 PHA, Earth MOID = 0.0111 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 333.82633 (2000.0) P Q
n 0.29059880 Peri. 301.71782 -0.96053077 -0.27134415
a 2.2573912 Node 222.62479 +0.27586954 -0.90089991
e 0.8458963 Incl. 5.19030 +0.03573005 -0.33875020
P 3.39 H 21.91 G 0.15 U 0
Residuals in seconds of arc
191023 G96 0.0 0.1- 191105 J43 0.2- 0.1- 191109 291 0.3+ 0.2-
191023 G96 0.1+ 0.0 191105 J43 0.2- 0.1+ 191109 291 0.1+ 0.1-
191023 G96 0.1- 0.1+ 191105 J43 0.1- 0.0 191109 291 0.1- 0.2-
191026 F51 0.2+ 0.0 191105 J43 0.0 0.1- 191110 K87 0.1+ 0.1+
191026 F51 0.0 0.1- 191105 G96 0.0 0.0 191110 K87 0.1- 0.1+
191026 F51 0.1+ 0.2- 191105 G96 0.1+ 0.0 191110 K87 0.3- 0.3+
191028 F51 0.1+ 0.1- 191105 695 0.1+ 0.0 191110 T08 0.0 0.1-
191028 F51 0.0 0.0 191105 695 0.2+ 0.1- 191110 T08 0.2+ 0.2-
191028 F51 0.1+ 0.1- 191105 691 0.2- 0.0 191110 T08 0.1- 0.2-
191028 F51 0.2- 0.0 191105 691 0.1- 0.1+ 191110 T08 0.0 0.0
191029 I52 0.3- 0.1- 191105 691 0.1- 0.4+ 191111 J95 0.1- 0.0
191029 I52 0.4+ 0.1- 191106 W85 0.0 0.1- 191111 J95 0.1- 0.3+
191029 I52 0.0 0.3- 191106 W85 0.0 0.1- 191111 J95 0.0 0.1-
191030 I52 0.1- 0.1+ 191106 W85 0.0 0.1+ 191111 J95 0.4- 0.1+
191030 I52 0.1+ 0.2- 191106 W85 0.0 0.0 191112 F65 0.4+ 0.6-
191030 I52 0.0 0.1- 191106 W85 0.1+ 0.1- 191112 F65 0.2+ 0.5-
191030 I52 0.2+ 0.1+ 191107 204 0.1- 0.1- 191112 F65 0.3+ 0.4-
191031 K87 0.4+ 0.0 191107 204 0.1- 0.0 191113 J95 0.3- 0.5+
191031 K87 0.3- 0.2+ 191107 204 0.0 0.0 191113 J95 0.1- 0.1+
191031 K87 0.2+ 0.2- 191107 703 0.1+ 0.3+ 191113 J95 0.1- 0.2+
191101 291 0.0 0.1- 191107 703 0.4- 0.3+ 191113 J95 0.1- 0.2+
191101 291 0.0 0.0 191107 703 0.4- 0.3+ 191113 J95 0.1- 0.2+
191101 T12 0.1- 0.0 191107 703 0.7- 0.4+ 191113 Z80 0.9+ 0.3-
191101 Q63 0.2- 0.2+ 191107 F51 0.0 0.1- 191113 Z80 0.7+ 0.1-
191101 Q63 0.2- 0.0 191107 F51 0.1+ 0.0 191113 Z80 0.8+ 0.2-
191101 Q63 0.0 0.2- 191107 F51 0.1+ 0.0 191113 Z80 0.1+ 0.2-
191101 Q63 0.1- 0.1+ 191108 T05 0.5- 0.0 191113 Z80 0.4+ 0.2-
191102 691 0.1- 0.0 191108 T05 0.1+ 0.3+ 191113 Z80 0.1- 0.9-
191102 691 0.2- 0.1+ 191108 T05 0.2+ 0.2- 191113 Z80 0.6+ 0.3-
191102 691 0.1+ 0.0 191108 T05 0.0 0.0 191113 Z80 0.5+ 0.3-
191103 691 0.1+ 0.4+ 191108 T05 0.3- 0.5- 191113 Z80 0.7+ 0.1-
191103 691 0.2- 0.3+ 191109 J43 0.1- 0.2+ 230706 I52 0.0 0.1+
191103 691 0.1- 0.0 191109 J43 0.6+ 0.1- 230706 I52 0.2- 0.1-
191104 691 0.1- 0.0 191109 J43 0.1- 0.2+ 230706 I52 0.1+ 0.0
191104 691 0.0 0.1+ 191109 J43 0.3- 0.5+ 230706 I52 0.2+ 0.0
191104 T05 0.1+ 0.5+ 191109 703 0.3- 0.1+ 230706 Z84 0.1+ 0.2-
191104 T05 0.3+ 0.3+ 191109 703 0.3- 0.0 230706 Z84 0.3+ 0.1-
191104 T05 0.3- 0.7+ 191109 291 0.0 0.1- 230706 Z84 0.2+ 0.0
191104 T05 0.3+ 0.3+ 191109 703 0.4- 0.4- 230707 I52 0.3+ 0.0
191104 695 0.2+ 0.1+ 191109 291 0.0 0.2- 230707 I52 0.1+ 0.1-
191104 695 0.2+ 0.1+ 191109 703 0.2+ 0.7- 230707 I52 0.1- 0.3+
191104 695 0.2+ 0.1+ 191109 291 0.1+ 0.1- 230707 I52 0.4- 0.1-
Ephemeris:
2019 UN12 a,e,i = 2.26, 0.85, 5 q = 0.3479
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 07 06 24 32.9 +23 38 43 0.6425 0.4654 19.9 132.0 25.2
...
2023 06 22 07 23 06.2 +30 02 50 0.3097 0.7320 19.6 152.2 27.6
...
2023 06 30 08 55 51.7 +37 49 49 0.1795 0.8730 33.7 139.7 24.7
...
2023 07 06 12 10 11.3 +37 43 43 0.1262 0.9746 67.1 106.0 21.3
2023 07 07 12 49 39.6 +35 03 14 0.1249 0.9912 74.8 98.3 20.9
2023 07 08 13 26 14.0 +31 38 32 0.1263 1.0077 82.3 90.5 20.6
...
2023 07 14 15 41 07.7 +10 35 12 0.1789 1.1042 115.0 56.5 20.4
...
2023 07 22 16 44 33.0 -02 32 49 0.3025 1.2273 128.5 40.4 21.4
...
2023 08 06 17 28 11.5 -10 44 32 0.5764 1.4423 127.9 33.7 22.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-N23
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