MPEC 2023-F57 : 2018 HB
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M.P.E.C. 2023-F57 Issued 2023 March 19, 14:08 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
2018 HB
Revision to MPEC 2018-H36
Additional Observations:
K18H00B C2010 04 11.40309813 08 02.248-24 10 11.49 20.09GVEF057F51
K18H00B C2010 04 11.41279713 07 56.816-24 10 21.85 20.38GVEF057F51
K18H00B C2010 04 17.37785412 10 44.241-25 11 38.80 19.41GVEF057F51
K18H00B C2010 04 17.38643012 10 38.986-25 11 39.39 20.07GVEF057F51
K18H00B KC2023 03 18.39575011 25 47.626+48 28 47.42 20.66GVEF057I52
K18H00B KC2023 03 18.39863711 25 45.872+48 28 37.96 20.95GVEF057I52
K18H00B KC2023 03 18.40151311 25 44.180+48 28 28.78 20.57GVEF057I52
K18H00B KC2023 03 18.40439811 25 42.438+48 28 19.34 21.10GVEF057I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
Measurers 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, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly,
K. W. Wierzchos. 1.0-m prime focus + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100411 F51 0.47+ 0.49+ 230318 I52 0.40+ 0.31+ MPO450738 -0.16 days
Orbital elements:
2018 HB Earth MOID = 0.1805 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 96.45097 (2000.0) P Q
n 1.35163494 Peri. 354.84071 +0.98543668 -0.14217553
a 0.8101457 Node 14.38249 +0.16633631 +0.69207230
e 0.5884028 Incl. 22.05656 +0.03530968 +0.70768782
P 0.73 H 22.14 G 0.15 U 1
Residuals in seconds of arc
100411 F51 0.1+ 0.1+ 180417 033 0.3+ 0.4+ 180421 I52 0.1- 0.0
100411 F51 0.4- 0.1+ 180417 033 0.1+ 0.6+ 180421 I52 0.1- 0.3-
100417 F51 0.2+ 0.3- 180417 033 0.0 0.3+ 180508 V06 0.1- 0.1-
100417 F51 0.1- 0.1+ 180417 033 0.4- 0.3+ 180508 V06 0.2+ 0.1-
180416 G96 0.1+ 0.0 180417 Z84 0.3- 0.1+ 180508 V06 0.1- 0.0
180416 G96 0.3+ 0.3- 180417 Z84 0.4- 0.0 180508 V06 0.2- 0.0
180416 G96 0.0 0.5+ 180417 Z84 0.4- 0.5+ 180510 291 0.1+ 0.1-
180416 I52 0.5- 0.8- 180417 Z84 0.2+ 0.6+ 180510 291 0.1+ 0.1+
180416 I52 0.4+ 1.0- 180418 I52 0.3+ 0.7- 180510 291 0.1+ 0.4+
180416 I52 0.0 0.1+ 180418 I52 0.2- 0.1- 230318 I52 0.0 0.1-
180416 I52 0.4+ 0.3+ 180418 I52 0.5+ 0.0 230318 I52 0.2- 0.1-
180417 H21 0.1- 0.1- 180418 I52 0.1- 0.8+ 230318 I52 0.2+ 0.1+
180417 H21 0.3- 0.5+ 180420 I52 0.2- 0.0 230318 I52 0.1+ 0.1+
180417 H21 0.2+ 0.3+ 180420 I52 0.4- 0.2-
180417 033 0.3+ 0.1- 180421 I52 0.4- 0.2+
Ephemeris:
2018 HB a,e,i = 0.81, 0.59, 22 q = 0.3335
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 17 16 50 11.6 +38 17 26 0.2867 1.0187 87.9 75.7 22.1
...
2023 03 04 14 35 27.2 +52 05 05 0.2489 1.1245 116.4 52.1 21.3
...
2023 03 12 12 41 55.3 +52 48 07 0.2554 1.1693 128.4 41.7 21.1
...
2023 03 18 11 29 45.3 +48 49 35 0.2756 1.1979 132.3 37.9 21.3
2023 03 19 11 20 02.1 +47 56 11 0.2802 1.2023 132.4 37.7 21.3
2023 03 20 11 10 59.0 +47 00 37 0.2851 1.2065 132.5 37.5 21.3
...
2023 03 26 10 29 10.2 +41 08 53 0.3206 1.2297 130.4 38.1 21.6
...
2023 04 03 09 57 40.5 +33 50 53 0.3807 1.2543 124.3 41.1 22.1
...
2023 04 18 09 36 08.0 +23 35 08 0.5148 1.2818 111.0 47.0 23.0
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-F57
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