MPEC 2018-Y99 : 2018 PL28
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M.P.E.C. 2018-Y99 Issued 2018 Dec. 31, 00:57 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
2018 PL28
Revision to MPEC 2018-S37
Additional Observations:
K18P28L KC2015 02 20.61834811 48 04.259+23 17 50.69 23.0 GVEY099F51
K18P28L KC2015 02 23.39479211 46 31.301+23 23 01.78 22.9 GVEY099F51
K18P28L C2016 01 16.55342012 00 49.301+01 01 42.59 22.4 GVEY099F51
K18P28L C2016 01 16.56554312 00 49.064+01 01 40.14 22.3 GVEY099F51
K18P28L C2016 01 16.57765912 00 48.842+01 01 38.12 22.2 GVEY099F51
K18P28L C2016 01 16.58985012 00 48.607+01 01 36.18 22.5 GVEY099F51
K18P28L KC2016 01 21.65635811 59 02.674+00 47 50.96 21.9 GVEY099F51
K18P28L C2016 02 10.49651911 48 33.951+00 06 01.03 22.2 GVEY099F51
K18P28L C2016 02 10.50761211 48 33.495+00 05 59.59 22.1 GVEY099F51
K18P28L C2016 02 10.51869011 48 33.045+00 05 58.70 22.1 GVEY099F51
K18P28L C2016 03 11.30518 11 23 55.24 -00 25 39.4 21.5 VqEY099G96
K18P28L C2016 03 11.30927 11 23 54.96 -00 25 40.0 21.7 VqEY099G96
K18P28L C2016 03 11.31336 11 23 54.79 -00 25 39.5 21.7 VqEY099G96
K18P28L C2016 03 11.31745 11 23 54.55 -00 25 40.0 21.7 VqEY099G96
K18P28L C2016 03 16.26216 11 19 15.74 -00 28 39.0 20.4 VqEY099G96
K18P28L C2016 03 16.26509 11 19 15.55 -00 28 39.1 21.8 VqEY099G96
K18P28L C2016 03 16.26802 11 19 15.39 -00 28 39.0 21.1 VqEY099G96
K18P28L C2016 03 16.27094 11 19 15.24 -00 28 38.9 21.7 VqEY099G96
K18P28L C2016 04 02.34210811 03 28.153-00 38 31.67 21.0 GVEY099F51
K18P28L C2016 04 02.35458811 03 27.477-00 38 32.34 21.1 GVEY099F51
K18P28L C2016 04 05.35841211 00 50.304-00 40 35.93 21.7 GVEY099F51
K18P28L C2016 04 05.37226811 00 49.564-00 40 36.46 21.7 GVEY099F51
K18P28L C2016 04 05.39963111 00 48.153-00 40 37.71 21.3 GVEY099F51
K18P28L KC2016 04 30.29492210 42 54.701-01 09 04.44 22.3 GVEY099F51
Observer details:
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, L. Denneau,
H. Flewelling, E. Magnier. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observers A. R. Gibbs, G. J. Leonard. Measurers
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
F. C. Shelly. 1.5-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
150220 F51 0.00+ 0.03- 160430 F51 0.01- 0.04- MPO452069 -0.071 day
Orbital elements:
2018 PL28
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 7.39946 (2000.0) P Q
n 0.01140351 Peri. 275.11980 +0.04457495 +0.98704567
a 19.5483665 Node 350.78181 +0.12207542 -0.15850193
e 0.8625730 Incl. 74.17489 -0.99151937 +0.02485914
P 86.43 H 14.8 G 0.15 U 0
Residuals in seconds of arc
150220 F51 0.3+ 0.3- 180818 K88 0.1- 0.1+ 180908 Q62 0.4- 0.1-
150223 F51 0.1- 0.2+ 180818 K88 0.2- 0.5+ 180909 I52 0.5- 0.2-
160116 F51 0.0 0.2+ 180818 K88 0.3- 0.2+ 180909 I52 0.0 0.2+
160116 F51 0.0 0.2- 180818 K88 0.0 0.1+ 180909 I52 0.2- 0.6-
160116 F51 0.1+ 0.2- 180819 K88 0.1- 0.1- 180909 I52 0.3+ 0.0
160116 F51 0.2+ 0.0 180819 K88 0.0 0.0 180910 I52 0.5- 0.1-
160121 F51 0.2+ 0.0 180819 K88 0.1+ 0.3+ 180910 I52 0.1+ 0.2+
160210 F51 0.1+ 0.1+ 180831 695 0.1- 0.5+ 180910 I52 0.1+ 0.3-
160210 F51 0.0 0.2- 180831 695 0.4- 0.3+ 180910 I52 0.6+ 0.1-
160210 F51 0.1+ 0.1- 180831 I52 0.3- 0.5+ 180911 I52 0.0 0.0
160311 G96 0.4+ 0.1+ 180831 I52 0.4- 0.3+ 180911 I52 0.4+ 0.2+
160311 G96 0.3- 0.4- 180831 I52 0.1- 0.1+ 180911 I52 0.0 0.0
160311 G96 0.6+ 0.3+ 180901 V06 0.3- 0.1- 180911 I52 0.1- 0.1+
160311 G96 0.5+ 0.1- 180901 V06 0.1+ 0.1+ 180912 291 0.4+ 0.8+
160316 G96 0.3+ 0.4- 180901 V06 0.0 0.1+ 180912 291 0.0 0.2+
160316 G96 0.1- 0.4- 180903 K63 0.0 0.6- 180912 291 0.1- 0.1+
160316 G96 0.1+ 0.2- 180903 K63 0.2+ 0.7- 180913 G96 0.8- 0.3-
160316 G96 0.3+ 0.0 180903 K63 0.3- 0.7- 180913 G96 0.4+ 0.6+
160402 F51 0.0 0.1+ 180904 691 0.6- 0.1- 180913 G96 0.3+ 1.0-
160402 F51 0.1- 0.0 180904 691 0.1+ 0.2+ 180913 G96 0.5+ 0.6-
160405 F51 0.1+ 0.1+ 180904 691 0.3- 0.1+ 180914 691 0.4- 0.5+
160405 F51 0.1- 0.1+ 180904 I52 0.9+ 0.1+ 180914 691 0.1- 0.1+
160405 F51 0.2+ 0.1+ 180904 I52 0.1- 0.0 180914 691 0.1+ 0.4+
160430 F51 0.2+ 0.0 180904 I52 0.7+ 0.2+ 180915 711 0.3+ 0.3+
180807 F51 0.0 0.2- 180904 I52 0.0 0.1+ 180915 711 0.2+ 0.3-
180807 F51 0.1+ 0.1- 180905 291 0.2- 0.1+ 180915 711 0.3- 0.1+
180807 F51 0.1+ 0.1- 180905 291 0.6- 0.4+ 180915 691 0.2+ 0.1+
180809 J04 0.0 0.1- 180905 291 0.4- 0.5+ 180915 691 0.1- 0.6-
180809 J04 0.0 0.2- 180906 I52 0.4- 0.4- 180915 691 0.9- 0.1-
180809 J04 0.2+ 0.1- 180906 I52 0.0 0.6+ 180916 033 0.1+ 0.0
180810 734 0.2+ 0.5- 180906 I52 0.2- 0.2- 180916 033 0.0 0.0
180810 734 1.3- 0.4+ 180906 I52 0.2+ 0.8+ 180916 033 0.2- 0.1-
180811 L01 0.2+ 0.8+ 180906 I52 0.1+ 0.4- 180916 033 0.0 0.1+
180811 L01 0.2- 0.2- 180906 I52 0.1+ 0.2- 180916 033 0.1- 0.1+
180811 L01 0.3- 0.5+ 180906 I52 0.3+ 0.1- 180916 033 0.0 0.0
180814 Q62 0.7+ 0.0 180906 I52 0.6- 0.3- 180917 033 0.3- 0.1-
180814 Q62 0.1+ 0.6+ 180907 691 0.1+ 0.3+ 180917 033 0.1- 0.1-
180815 807 0.2- 0.7- 180907 691 0.2- 0.0 180917 033 0.5- 0.2-
180815 807 0.3- 0.2- 180907 691 0.3- 0.1+ 180917 033 0.2- 0.2-
180815 807 0.2- 0.2- 180907 I52 0.3+ 0.1+ 180917 I52 0.7+ 0.1+
180817 K88 0.1- 0.1+ 180907 I52 0.1+ 0.1- 180917 I52 0.2+ 0.2-
180817 K88 0.0 0.1+ 180907 I52 0.3+ 0.3- 180917 I52 0.3- 0.2-
180817 K88 0.3- 0.2- 180907 I52 0.4+ 0.5- 180918 I52 0.6+ 1.1-
180817 F51 0.0 0.3- 180908 I52 0.1- 0.1+ 180918 I52 0.3+ 0.0
180817 F51 0.0 0.2- 180908 I52 0.7+ 0.1- 180918 I52 0.3+ 1.1+
180817 F51 0.1+ 0.2- 180908 I52 0.6- 0.8+ 181213 568 0.0 0.1+
180817 F51 0.1- 0.2- 180908 I52 0.4+ 1.0+ 181213 568 0.0 0.0
180818 K88 0.1- 0.3+ 180908 Q62 0.7- 0.0
Ephemeris:
2018 PL28 a,e,i = 19.55, 0.86, 74 q = 2.6865
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 01 22 41 37.6 -00 08 40 5.0459 5.1977 93.4 10.9 22.6
...
2018 12 16 22 43 05.5 +00 50 40 5.3962 5.2971 79.0 10.5 22.7
...
2018 12 24 22 44 50.0 +01 26 05 5.5787 5.3500 71.6 10.0 22.8
...
2018 12 30 22 46 30.5 +01 54 17 5.7119 5.3897 66.1 9.6 22.9
2018 12 31 22 46 48.9 +01 59 06 5.7338 5.3963 65.2 9.5 22.9
2019 01 01 22 47 07.8 +02 03 58 5.7555 5.4029 64.3 9.4 22.9
...
2019 01 07 22 49 10.1 +02 33 57 5.8832 5.4425 59.0 8.9 22.9
...
2019 01 15 22 52 14.6 +03 15 55 6.0455 5.4953 52.0 8.1 23.0
...
2019 01 30 22 58 51.7 +04 40 11 6.3204 5.5942 39.4 6.4 23.0
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-Y99
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