MPEC 2021-J90 : 2021 JF2
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M.P.E.C. 2021-J90 Issued 2021 May 7, 22:47 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
2021 JF2
Observations:
K21J02F* C2021 05 06.38030615 42 44.69 +18 02 44.7 VEJ090G96
K21J02F C2021 05 06.38502115 42 45.28 +18 00 19.0 20.38GVEJ090G96
K21J02F C2021 05 06.39443115 42 46.52 +17 55 26.9 19.86GVEJ090G96
K21J02F C2021 05 06.41609115 42 48.64 +17 44 11.8 19.7 GVEJ090H01
K21J02F C2021 05 06.41965415 42 49.13 +17 42 22.2 20.0 GVEJ090H01
K21J02F C2021 05 06.43009815 42 50.64 +17 37 00.9 20.0 GVEJ090H01
K21J02F C2021 05 06.43685415 42 51.62 +17 33 33.0 20.2 GVEJ090H01
K21J02F KC2021 05 06.45407015 42 54.80 +17 24 55.0 19.67GVEJ090I52
K21J02F KC2021 05 06.45520115 42 54.93 +17 24 19.4 19.67GVEJ090I52
K21J02F KC2021 05 06.45633115 42 55.12 +17 23 45.1 19.83GVEJ090I52
K21J02F KC2021 05 06.45746215 42 55.27 +17 23 10.3 19.81GVEJ090I52
K21J02F KC2021 05 06.95004115 44 57.40 +13 21 35.9 20.4 GVEJ090B49
K21J02F KC2021 05 06.95418415 44 57.87 +13 19 40.2 20.3 GVEJ090B49
K21J02F KC2021 05 07.22825815 45 49.13 +11 13 09.2 uEJ090H21
K21J02F KC2021 05 07.23131715 45 49.46 +11 11 46.4 20.4 VuEJ090H21
K21J02F KC2021 05 07.23240215 45 49.57 +11 11 17.2 20.6 VuEJ090H21
K21J02F KC2021 05 07.29058115 46 01.23 +10 45 33.2 20.67GVEJ090I52
K21J02F KC2021 05 07.29115115 46 01.31 +10 45 17.5 19.94GVEJ090I52
K21J02F KC2021 05 07.29171715 46 01.37 +10 45 02.3 20.04GVEJ090I52
K21J02F KC2021 05 07.29228115 46 01.43 +10 44 46.5 19.96GVEJ090I52
K21J02F C2021 05 07.34858415 46 06.51 +10 19 42.0 19.95GVEJ090G96
K21J02F C2021 05 07.35369215 46 06.96 +10 17 22.3 19.64GVEJ090G96
K21J02F C2021 05 07.35878715 46 07.44 +10 15 10.7 19.97GVEJ090G96
K21J02F C2021 05 07.36388715 46 07.86 +10 12 54.4 20.18GVEJ090G96
K21J02F KC2021 05 07.46325515 46 17.69 +09 29 02.8 20.03GVEJ090I52
K21J02F KC2021 05 07.46424015 46 17.79 +09 28 37.4 19.88GVEJ090I52
K21J02F KC2021 05 07.46522515 46 17.91 +09 28 11.4 20.17GVEJ090I52
K21J02F KC2021 05 07.46621015 46 18.04 +09 27 45.9 20.04GVEJ090I52
K21J02F KC2021 05 07.88366715 47 47.92 +06 31 06.8 19.6 GVEJ090L06
K21J02F KC2021 05 07.88634415 47 48.21 +06 30 01.1 19.8 GVEJ090L06
K21J02F KC2021 05 07.88714815 47 48.27 +06 29 42.2 19.6 GVEJ090L06
Observer details:
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 reflector +
CCD.
G96 Mt. Lemmon Survey. Observer H. Groeller. 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. 1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
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.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36-m Schmidt-Cassegrain + CCD.
Orbital elements:
2021 JF2 Earth MOID = 0.0278 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 309.72424 (2000.0) P Q
n 0.49489841 Peri. 124.82815 -0.99497008 -0.01719923
a 1.5829189 Node 54.38311 -0.03025202 -0.88756030
e 0.4056511 Incl. 6.97258 +0.09549531 -0.46037039
P 1.99 H 26.28 G 0.15 U 8
Residuals in seconds of arc
210506 G96 0.0 1.6+ 210506 B49 0.1+ 0.8- 210507 G96 0.4+ 0.4+
210506 G96 0.3- 1.2+ 210506 B49 0.3- 0.3+ 210507 G96 0.2- 0.0
210506 G96 0.0 1.2- 210507 H21 0.1- 0.3+ 210507 I52 0.1- 0.7-
210506 H01 0.0 0.4- 210507 H21 0.0 0.3+ 210507 I52 0.3- 0.2-
210506 H01 0.1- 0.4- 210507 H21 0.0 0.5+ 210507 I52 0.2- 0.4-
210506 H01 0.0 0.4- 210507 I52 0.1- 0.0 210507 I52 0.0 0.1+
210506 H01 0.0 0.6- 210507 I52 0.3+ 0.5- 210507 L06 0.0 0.2-
210506 I52 0.4+ 0.3+ 210507 I52 0.4+ 0.5- 210507 L06 0.1- 0.8-
210506 I52 0.2- 0.5- 210507 I52 0.5+ 1.2- 210507 L06 0.5- 0.1-
210506 I52 0.2+ 0.2- 210507 G96 0.1+ 0.2-
210506 I52 0.0 0.3- 210507 G96 (0.0 3.7-)
Ephemeris:
2021 JF2 a,e,i = 1.58, 0.41, 7 q = 0.9408
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 07 04 18 59.3 +57 01 31 0.1370 0.9468 63.1 109.5 26.0
...
2021 04 22 05 04 18.4 +71 43 11 0.06633 0.9798 65.8 110.7 24.6
...
2021 04 30 14 14 16.5 +75 35 26 0.03470 1.0077 89.7 88.3 22.1
...
2021 05 06 15 41 17.4 +21 23 24 0.03054 1.0325 140.3 38.7 20.3
2021 05 07 15 45 00.9 +13 00 42 0.03271 1.0369 147.9 31.2 20.3
2021 05 08 15 47 58.5 +05 47 19 0.03550 1.0414 154.3 24.9 20.3
...
2021 05 14 15 57 27.6 -18 52 27 0.05969 1.0698 171.8 7.7 20.9
...
2021 05 22 16 01 49.9 -30 14 13 0.1001 1.1110 170.0 9.1 22.1
...
2021 06 06 16 05 27.6 -36 17 28 0.1881 1.1955 162.5 14.8 23.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J90
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