[Iaude] MPEC Y68: 2021 JR57 [a=1.82,e=0.48,i=14.9,H=24.6]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Wed Dec 29 07:27:31 EST 2021
M.P.E.C. 2021-Y68 Issued 2021 December 29, 12:26 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
2021 JR57
Observations:
K21J57R* C2021 05 13.44281219 26 05.71 +57 11 15.5 20.50GVEY068G96
K21J57R C2021 05 13.44773319 26 29.80 +57 10 59.7 19.89GVEY068G96
K21J57R C2021 05 13.45265119 26 53.62 +57 10 42.5 19.95GVEY068G96
K21J57R KC2021 05 13.46861219 28 11.81 +57 09 44.2 VEY068I52
K21J57R KC2021 05 13.46917819 28 14.58 +57 09 42.2 19.78GVEY068I52
K21J57R KC2021 05 14.44231320 57 45.58 +53 48 30.6 19.7 GVEY068G96
K21J57R KC2021 05 14.44335620 57 51.29 +53 48 08.5 19.8 GVEY068G96
K21J57R KC2021 05 14.44416720 57 55.78 +53 47 51.0 19.4 GVEY068G96
Observer details:
G96 Mt. Lemmon Survey. Observers K. W. Wierzchos, 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, D. Parrott. 1.5-m
reflector + 10K CCD, 1.5-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer T. A. Pruyne.
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:
2021 JR57 Earth MOID = 0.0173 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 89.17555 (2000.0) P Q
n 0.39990801 Peri. 210.75270 -0.01973689 +0.97513363
a 1.8245789 Node 58.96376 -0.85690818 +0.09724544
e 0.4825210 Incl. 14.92872 -0.51509108 -0.19914249
P 2.46 H 24.65 G 0.15 U 9
Residuals in seconds of arc
210513 G96 0.1- 0.2- 210513 I52 0.0 0.1- 210514 G96 0.1- 0.1+
210513 G96 0.7+ 0.3+ 210513 I52 0.0 0.0 210514 G96 0.1+ 0.0
210513 G96 0.8- 0.0 210514 G96 0.0 0.1-
Ephemeris:
2021 JR57 a,e,i = 1.82, 0.48, 15 q = 0.9442
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 29 00 43 38.7 -06 20 04 1.2106 1.9089 120.3 26.5 27.7
...
2021 12 14 00 50 01.9 -02 35 05 1.4507 1.9941 108.4 27.9 28.2
...
2021 12 22 00 55 36.6 -00 41 38 1.5855 2.0376 102.4 28.1 28.4
...
2021 12 28 01 00 33.9 +00 40 43 1.6885 2.0692 98.0 28.1 28.6
2021 12 29 01 01 26.9 +00 54 14 1.7059 2.0744 97.3 28.0 28.6
2021 12 30 01 02 20.8 +01 07 41 1.7232 2.0796 96.6 28.0 28.7
...
2022 01 05 01 08 03.0 +02 27 15 1.8278 2.1101 92.3 27.8 28.8
...
2022 01 13 01 16 23.4 +04 10 20 1.9680 2.1496 86.8 27.2 29.0
...
2022 01 28 01 33 51.0 +07 14 47 2.2293 2.2198 76.7 25.6 29.3
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-Y68
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