[Iaude] MPEC X197: 2020 HR3 [a=1.09,e=0.34,i=8.3,H=24.0]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sat Dec 11 09:07:48 EST 2021
M.P.E.C. 2021-X197 Issued 2021 December 11, 14:06 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 HR3
Revision to MPEC 2020-H108
Additional Observations:
K20H03R KC2021 12 05.45085208 37 01.96 +46 41 48.8 22.41GVEX197I52
K20H03R KC2021 12 05.45622208 36 59.86 +46 42 04.1 22.53GVEX197I52
K20H03R KC2021 12 05.46159208 36 57.72 +46 42 18.7 22.84GVEX197I52
K20H03R KC2021 12 05.46696408 36 56.52 +46 42 26.9 21.53GVEX197I52
K20H03R C2021 12 06.34404 08 31 29.27 +47 21 48.7 22.9 GVEX197I52
K20H03R C2021 12 06.34941 08 31 27.17 +47 22 03.0 22.5 GVEX197I52
Observer details:
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. 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, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos, B. Gray.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
211205 I52 0.05+ 0.05+ 211206 I52 0.05+ 0.05+ MPO546171 +0.03 days
Orbital elements:
2020 HR3 Earth MOID = 0.0042 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 114.19146 (2000.0) P Q
n 0.86591883 Peri. 279.38474 +0.82769241 +0.55110516
a 1.0901458 Node 47.25824 -0.44149100 +0.75592581
e 0.3410801 Incl. 8.28829 -0.34642599 +0.35335431
P 1.14 H 24.04 G 0.15 U 2
Residuals in seconds of arc
200421 G96 (0.8- 0.4-) 200422 I52 0.6+ 0.7- 200425 I52 0.0 0.1-
200421 G96 0.1- 0.5+ 200422 I52 0.0 0.3+ 200427 V06 0.3+ 0.0
200421 F52 0.1+ 0.0 200422 I52 0.8+ 0.4+ 200427 V06 0.2+ 0.2-
200421 G96 0.2- 0.2- 200422 H21 0.2+ 0.3- 200427 V06 0.0 0.1-
200421 F52 0.1- 0.2+ 200422 H21 0.3- 0.1+ 200427 V06 0.0 0.0
200421 F52 0.1- 0.0 200422 H21 0.5- 0.2- 200513 V06 0.1+ 0.2+
200421 F52 0.1+ 0.0 200422 H21 0.3- 0.2+ 200513 V06 0.1- 0.1-
200421 V06 0.1- 0.0 200422 246 0.7- 1.0+ 200513 V06 0.0 0.1-
200421 V06 0.1+ 0.3- 200422 246 1.4+ 0.0 211205 I52 0.1- 0.0
200421 V06 0.2- 0.1+ 200422 246 1.2- 0.4+ 211205 I52 0.2+ 0.4+
200421 246 0.3+ 0.4- 200422 033 0.3- 0.1- 211205 I52 0.1- 0.2+
200421 246 0.5- 0.2+ 200422 033 0.3+ 0.5- 211205 I52 (9.4+ 6.5-)
200421 246 0.9+ 0.4+ 200422 033 0.0 0.4- 211206 I52 0.2- 0.1-
200421 246 0.9- 0.7- 200425 I52 0.0 0.3- 211206 I52 0.2+ 0.5-
200421 246 1.0- 0.5+ 200425 I52 0.1+ 0.1-
200422 I52 0.2- 0.0 200425 I52 0.2- 0.1-
Ephemeris:
2020 HR3 a,e,i = 1.09, 0.34, 8 q = 0.7183
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 11 10 23 32.5 +19 55 11 0.1613 0.9704 78.3 92.3 23.3
...
2021 11 26 09 27 36.9 +37 52 57 0.1728 1.0588 110.1 61.1 22.5
...
2021 12 04 08 45 49.2 +45 32 15 0.1857 1.1041 125.6 46.6 22.4
...
2021 12 10 08 07 26.7 +49 43 39 0.1999 1.1368 135.8 37.1 22.3
2021 12 11 08 00 37.4 +50 15 56 0.2027 1.1421 137.4 35.7 22.3
2021 12 12 07 53 43.9 +50 45 19 0.2056 1.1474 138.8 34.4 22.3
...
2021 12 18 07 12 13.0 +52 40 49 0.2261 1.1784 146.1 27.8 22.4
...
2021 12 26 06 22 55.7 +52 53 05 0.2611 1.2175 150.5 23.5 22.7
...
2022 01 10 05 27 51.0 +49 26 31 0.3496 1.2836 144.3 26.6 23.5
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-X197
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