[Iaude] MPEC S85: 2021 JH7 [a=2.13,e=0.53,i=64.8,H=19.78]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Sep 19 10:12:29 EDT 2023
M.P.E.C. 2023-S85 Issued 2023 September 19, 14:11 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 JH7
Revision to MPEC 2021-J234
Additional Observations:
K21J07H C2015 11 17.43621305 03 39.965+03 51 29.04 23.29GVES085F51
K21J07H C2015 11 17.44926305 03 37.799+03 51 43.72 22.66GVES085F51
K21J07H C2015 12 01.45680504 25 06.249+08 28 00.15 22.41GVES085F51
K21J07H C2015 12 01.49112404 25 00.612+08 28 40.31 21.53GVES085F51
K21J07H C2015 12 02.50084604 22 17.808+08 48 33.57 22.46GVES085F51
K21J07H C2015 12 03.35619104 20 01.491+09 05 18.63 21.98GVES085F51
K21J07H C2015 12 03.36823004 19 59.562+09 05 32.59 22.41GVES085F51
K21J07H C2015 12 04.31776204 17 29.312+09 24 02.96 22.05GVES085F51
K21J07H C2015 12 04.33120304 17 27.157+09 24 18.34 VES085F51
K21J07H C2015 12 05.45619904 14 30.807+09 46 04.74 22.72GVES085F51
K21J07H C2015 12 05.46824104 14 28.932+09 46 18.79 22.64GVES085F51
K21J07H C2015 12 05.48020004 14 27.032+09 46 32.09 22.56GVES085F51
K21J07H C2015 12 05.49226804 14 25.144+09 46 45.97 22.55GVES085F51
K21J07H C2015 12 08.46001104 06 53.571+10 43 15.31 23.84GVES085F51
K21J07H C2015 12 08.47120704 06 51.871+10 43 27.99 23.96GVES085F51
K21J07H C2015 12 12.45953803 57 18.511+11 56 51.64 22.22GVES085F51
K21J07H C2018 05 15.42569 20 59 24.70 -16 40 34.8 20.0 GVES085G96
K21J07H C2018 05 15.43757 20 59 29.83 -16 42 29.2 20.1 GVES085G96
K21J07H C2018 05 15.44350 20 59 32.38 -16 43 25.0 19.6 GVES085G96
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers B. Gray, D. Rankin,
F. C. Shelly. 1.5-m reflector + 10K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
151117 F51 2.2- 12.8- 180515 G96 30.8- 35.3- E2021-WA8 +0.05 days
Orbital elements:
2021 JH7 Earth MOID = 0.1001 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 242.09502 (2000.0) P Q
n 0.31600782 Peri. 226.38571 +0.06075131 +0.51741729
a 2.1347032 Node 70.56703 -0.43010478 +0.78525992
e 0.5318114 Incl. 64.84194 -0.90073257 -0.34006793
P 3.12 H 19.78 G 0.15 U 0
Residuals in seconds of arc
151117 F51 0.0 0.1+ 210513 H01 0.0 0.0 210529 I52 0.5- 0.1+
151117 F51 0.3- 0.1- 210513 H01 0.0 0.0 210601 F51 0.1+ 0.0
151201 F51 0.2- 0.3+ 210513 H01 0.1- 0.0 210601 F51 0.0 0.1+
151201 F51 0.0 0.1- 210513 H01 0.0 0.0 210602 G96 0.0 0.4-
151202 F51 0.1- 0.6+ 210513 I52 0.2+ 0.0 210602 G96 0.1+ 0.0
151203 F51 0.0 0.2+ 210513 I52 0.2- 0.2- 210602 G96 0.0 0.1+
151203 F51 0.2+ 0.0 210513 I52 0.1+ 0.1+ 210602 G96 0.2+ 0.3-
151204 F51 0.2- 0.3+ 210513 J04 0.2- 0.2- 210607 I52 0.1+ 0.1-
151204 F51 0.2- 0.0 210514 H21 0.0 0.2+ 210607 I52 0.0 0.1-
151205 F51 0.3- 0.2+ 210514 H21 0.0 0.3+ 210607 I52 0.2- 0.2-
151205 F51 0.1+ 0.4+ 210514 H21 0.1+ 0.1- 210612 I52 0.3+ 0.2+
151205 F51 0.1- 0.1- 210514 I52 0.2- 0.2- 210612 I52 0.1- 0.1-
151205 F51 0.2+ 0.1- 210514 I52 0.2+ 0.1+ 210612 I52 0.1+ 0.1+
151208 F51 0.1+ 0.1- 210514 I52 0.1- 0.0 210612 I52 0.2+ 0.1+
151208 F51 0.0 0.0 210514 I52 0.3- 0.1- 210613 I52 0.4- 0.3-
151212 F51 0.5- 0.3+ 210514 033 0.2- 0.1+ 210613 I52 0.5- 0.0
180515 G96 0.2+ 0.5- 210514 033 0.5- 0.0 210613 I52 0.2+ 0.2-
180515 G96 0.1+ 0.1- 210514 033 0.4- 0.2+ 210613 I52 0.6+ 0.1-
180515 G96 0.1- 1.5+ 210515 J04 0.1+ 0.2- 210622 I52 0.6+ 0.1+
210429 F51 0.2- 0.0 210515 J04 0.4+ 0.4+ 210622 I52 0.2- 0.0
210429 F51 0.0 0.2- 210515 J04 0.1- 0.1- 210628 807 0.3- 0.3+
210429 F51 0.2- 0.1+ 210523 I52 0.3- 0.0 210628 807 0.2- 0.2+
210430 G96 0.2+ 0.5- 210523 I52 0.7- 0.2+ 210628 807 0.6- 0.0
210504 F51 0.0 0.0 210523 I52 0.1- 1.7+ 210629 807 1.2+ 0.3-
210504 F51 0.1+ 0.0 210523 I52 0.2- 0.6- 210629 807 0.0 0.1+
210504 F51 0.1+ 0.1- 210524 I52 0.0 0.0 210629 807 0.4- 0.5+
210513 G96 0.1+ 0.1+ 210524 I52 0.3- 0.0 211129 807 0.0 0.2+
210513 G96 0.4+ 0.3- 210524 I52 1.0- 0.2- 211129 807 0.0 0.1+
210513 G96 0.1+ 0.0 210529 I52 0.2- 0.3- 211129 807 0.0 0.1+
210513 G96 0.1- 0.3+ 210529 I52 0.2+ 0.4+
Ephemeris:
2021 JH7 a,e,i = 2.13, 0.53, 65 q = 0.9994
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 20 10 01 02.9 +60 10 25 3.6396 3.0483 47.5 14.2 25.8
...
2023 09 04 10 44 23.1 +58 59 40 3.5295 3.0074 51.5 15.2 25.8
...
2023 09 12 11 07 18.7 +58 17 15 3.4653 2.9842 53.8 15.8 25.7
...
2023 09 18 11 24 23.6 +57 43 45 3.4150 2.9661 55.6 16.2 25.7
2023 09 19 11 27 13.7 +57 38 03 3.4065 2.9630 55.9 16.3 25.7
2023 09 20 11 30 03.7 +57 32 19 3.3980 2.9599 56.2 16.4 25.7
...
2023 09 26 11 46 59.1 +56 57 21 3.3459 2.9410 58.0 16.8 25.6
...
2023 10 04 12 09 21.1 +56 09 28 3.2750 2.9149 60.5 17.4 25.6
...
2023 10 19 12 50 39.0 +54 38 26 3.1392 2.8630 64.9 18.4 25.5
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-S85
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