MPEC 2021-J233 : 2021 JG7
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M.P.E.C. 2021-J233 Issued 2021 May 15, 18:50 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 JG7
Observations:
K21J07G C2021 04 10.49347214 56 49.111-11 34 04.67 22.54GVEJ233F51
K21J07G C2021 04 10.50468614 56 48.964-11 33 56.19 22.72GVEJ233F51
K21J07G C2021 04 10.51589714 56 48.819-11 33 47.85 22.50GVEJ233F51
K21J07G C2021 04 10.52708814 56 48.652-11 33 39.36 23.29GVEJ233F51
K21J07G C2021 05 01.35541 14 46 27.39 -05 42 46.2 VEJ233G96
K21J07G C2021 05 01.36189 14 46 27.09 -05 42 38.2 VEJ233G96
K21J07G C2021 05 01.36751 14 46 26.79 -05 42 31.4 20.6 GVEJ233G96
K21J07G C2021 05 01.37402 14 46 26.41 -05 42 23.0 VEJ233G96
K21J07G* C2021 05 08.40036 14 40 21.669-03 08 26.85 21.5 wUEJ233F51
K21J07G C2021 05 08.41234 14 40 20.921-03 08 10.19 21.2 wUEJ233F51
K21J07G C2021 05 08.42429 14 40 20.202-03 07 54.03 21.5 wUEJ233F51
K21J07G C2021 05 08.43629 14 40 19.455-03 07 37.48 21.5 wUEJ233F51
K21J07G C2021 05 10.29499 14 38 34.99 -02 24 56.3 VEJ233G96
K21J07G C2021 05 10.30529 14 38 34.37 -02 24 41.8 VEJ233G96
K21J07G C2021 05 13.39447214 35 36.925-01 12 26.60 21.63wUEJ233F51
K21J07G C2021 05 13.40754914 35 36.082-01 12 08.27 21.44wUEJ233F51
K21J07G C2021 05 13.42058714 35 35.255-01 11 49.94 21.48wUEJ233F51
K21J07G |C2021 05 14.09030 14 34 56.89 -00 55 48.9 21.3 GVEJ233807
K21J07G |C2021 05 14.09454 14 34 56.62 -00 55 43.0 21.2 GVEJ233807
K21J07G |C2021 05 14.09860 14 34 56.38 -00 55 37.1 21.3 GVEJ233807
K21J07G KC2021 05 14.13417014 34 54.31 -00 55 04.0 20.9 VuEJ233H21
K21J07G KC2021 05 14.14455214 34 53.66 -00 54 49.6 21.6 VuEJ233H21
K21J07G KC2021 05 14.15274914 34 53.15 -00 54 37.8 20.9 VuEJ233H21
K21J07G KC2021 05 14.21378714 34 49.68 -00 53 10.3 21.20GVEJ233I52
K21J07G KC2021 05 14.21793814 34 49.33 -00 53 04.9 21.1 VqEJ233858
K21J07G KC2021 05 14.21798414 34 49.37 -00 53 04.2 21.17GVEJ233I52
K21J07G KC2021 05 14.21966514 34 49.22 -00 53 02.2 21.0 VqEJ233858
K21J07G KC2021 05 14.22218014 34 49.13 -00 52 57.6 21.20GVEJ233I52
K21J07G 2C2021 05 14.93194814 34 08.050-00 36 09.77 21.2 GVEJ233J04
K21J07G 1C2021 05 14.93469 14 34 07.44 -00 36 10.8 21.4 VVEJ233033
K21J07G 1C2021 05 14.93758 14 34 07.25 -00 36 06.8 21.3 VVEJ233033
K21J07G 1C2021 05 14.94047 14 34 07.07 -00 36 02.6 21.5 VVEJ233033
K21J07G 2C2021 05 14.94185014 34 07.411-00 35 55.75 21.4 GVEJ233J04
K21J07G 1C2021 05 14.94336 14 34 06.90 -00 35 58.8 21.4 VVEJ233033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 1.00-m f/10.0 astrograph + CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien
+ CCD.
G96 Mt. Lemmon Survey. Observers D. Rankin, H. Groeller. Measurers E. J.
Christensen, B. Gray, D. Rankin, F. C. Shelly. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + 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.
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers M.
Micheli, D. Fohring, R. Kresken, D. Koschny, L. Conversi, A. Knofel,
M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
Orbital elements:
2021 JG7 Earth MOID = 0.1807 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 314.89502 (2000.0) P Q
n 0.19028377 Peri. 105.92798 +0.55511669 +0.83005522
a 2.9936537 Node 198.09787 -0.81368156 +0.52859963
e 0.6355742 Incl. 9.90238 -0.17253343 +0.17773791
P 5.18 H 20.96 G 0.15 U 6
Residuals in seconds of arc
210410 F51 0.2- 0.0 210510 G96 0.4- 0.1+ 210514 858 0.1+ 0.3-
210410 F51 0.0 0.1+ 210510 G96 0.1- 0.3+ 210514 I52 0.3- 0.2-
210410 F51 0.2+ 0.1- 210513 F51 0.0 0.1+ 210514 858 0.1+ 0.0
210410 F51 0.0 0.1- 210513 F51 0.0 0.0 210514 I52 0.2+ 0.4+
210501 G96 0.4- 0.4+ 210513 F51 0.1+ 0.1- 210514 J04 0.1+ 0.4+
210501 G96 0.2+ 0.3+ 210514 807 0.2- 0.1- 210514 033 0.0 0.2+
210501 G96 0.1+ 0.0 210514 807 0.2- 0.2- 210514 033 0.2- 0.0
210501 G96 0.5- 0.3+ 210514 807 0.1+ 0.1- 210514 033 0.2- 0.2+
210508 F51 0.1+ 0.2- 210514 H21 0.3- 0.3+ 210514 J04 0.1- 0.3+
210508 F51 0.1- 0.1+ 210514 H21 0.3- 0.0 210514 033 0.0 0.2-
210508 F51 0.2+ 0.1- 210514 H21 0.2- 0.2+
210508 F51 0.0 0.0 210514 I52 0.3+ 0.4-
Ephemeris:
2021 JG7 a,e,i = 2.99, 0.64, 10 q = 1.0910
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 15 14 55 43.9 -10 33 04 0.8114 1.7860 159.5 11.3 22.5
...
2021 04 30 14 47 30.9 -06 10 37 0.6619 1.6635 170.3 5.8 21.6
...
2021 05 08 14 40 43.8 -03 17 29 0.6015 1.5987 165.5 9.1 21.5
...
2021 05 14 14 35 01.8 -00 58 05 0.5647 1.5507 158.8 13.6 21.5
2021 05 15 14 34 03.7 -00 34 27 0.5592 1.5428 157.6 14.4 21.5
2021 05 16 14 33 05.7 -00 10 46 0.5540 1.5348 156.4 15.3 21.5
...
2021 05 22 14 27 25.3 +02 11 00 0.5260 1.4878 148.9 20.6 21.4
...
2021 05 30 14 20 47.8 +05 12 24 0.4971 1.4265 139.0 27.8 21.5
...
2021 06 14 14 14 25.3 +09 57 35 0.4603 1.3186 122.0 40.8 21.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J233
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