MPEC 2021-J109 : 2021 JU2
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M.P.E.C. 2021-J109 Issued 2021 May 9, 06:25 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 JU2
Observations:
K21J02U* C2021 05 07.26611413 28 39.71 +14 05 55.4 22.32GVEJ109G96
K21J02U C2021 05 07.27135313 28 41.73 +14 06 39.3 20.87GVEJ109G96
K21J02U C2021 05 07.27659513 28 43.77 +14 07 24.7 21.46GVEJ109G96
K21J02U C2021 05 07.28183613 28 45.89 +14 08 08.7 21.05GVEJ109G96
K21J02U KC2021 05 07.37791013 29 24.60 +14 21 47.3 20.49GVEJ109I52
K21J02U KC2021 05 07.38126713 29 25.98 +14 22 16.2 20.64GVEJ109I52
K21J02U KC2021 05 07.38462413 29 27.43 +14 22 44.3 20.62GVEJ109I52
K21J02U KC2021 05 07.38798313 29 28.82 +14 23 13.9 20.16GVEJ109I52
K21J02U bC2021 05 07.93664613 33 52.48 +15 44 59.3 20.9 GVEJ109L01
K21J02U bC2021 05 07.93902913 33 53.57 +15 45 21.6 21.1 GVEJ109L01
K21J02U bC2021 05 07.94184513 33 54.80 +15 45 47.5 21.2 GVEJ109L01
K21J02U bC2021 05 07.94444413 33 56.05 +15 46 11.1 21.0 GVEJ109L01
K21J02U bC2021 05 07.94704413 33 57.22 +15 46 35.4 21.1 GVEJ109L01
K21J02U KC2021 05 08.10573813 35 22.51 +16 11 36.8 21.0 VuEJ109H21
K21J02U KC2021 05 08.11569313 35 27.11 +16 13 11.9 20.7 VuEJ109H21
K21J02U KC2021 05 08.16465513 35 53.22 +16 21 12.7 20.56GVEJ109I52
K21J02U KC2021 05 08.16700813 35 54.31 +16 21 36.4 20.03GVEJ109I52
K21J02U KC2021 05 08.16977813 35 55.64 +16 22 02.2 20.89GVEJ109I52
K21J02U KC2021 05 08.17145713 35 56.41 +16 22 18.4 20.61GVEJ109I52
K21J02U KC2021 05 08.18366413 36 01.42 +16 24 11.3 21.1 VqEJ109858
K21J02U KC2021 05 08.18919413 36 03.92 +16 25 04.7 20.5 VqEJ109858
K21J02U KC2021 05 08.19472513 36 06.56 +16 25 58.0 21.4 VqEJ109858
K21J02U C2021 05 09.16069913 45 13.06 +19 10 01.9 20.7 GVEJ109H01
K21J02U C2021 05 09.16409013 45 14.96 +19 10 38.8 20.7 GVEJ109H01
K21J02U KC2021 05 09.16745913 45 16.70 +19 11 13.4 20.8 VqEJ109858
K21J02U KC2021 05 09.17299913 45 19.78 +19 12 13.4 20.8 VqEJ109858
K21J02U C2021 05 09.17650713 45 21.95 +19 12 54.8 20.5 GVEJ109H01
K21J02U KC2021 05 09.17853613 45 22.90 +19 13 14.4 20.8 VqEJ109858
K21J02U C2021 05 09.18144513 45 24.72 +19 13 48.9 20.6 GVEJ109H01
K21J02U KC2021 05 09.19349313 45 32.12 +19 16 03.6 20.12GVEJ109I52
K21J02U KC2021 05 09.19475213 45 32.81 +19 16 17.8 20.47GVEJ109I52
K21J02U KC2021 05 09.19601113 45 33.51 +19 16 31.2 20.14GVEJ109I52
K21J02U KC2021 05 09.19727013 45 34.24 +19 16 45.2 20.29GVEJ109I52
Observer details:
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + 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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2021 JU2 Earth MOID = 0.0380 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 315.88799 (2000.0) P Q
n 0.26115514 Peri. 50.32151 -0.20737065 +0.97763301
a 2.4240244 Node 207.76981 -0.91901651 -0.20697873
e 0.5888651 Incl. 4.31888 -0.33527013 -0.03732967
P 3.77 H 25.47 G 0.15 U 9
Residuals in seconds of arc
210507 G96 0.2+ 0.4+ 210507 L01 0.9+ 0.3- 210509 H01 0.1+ 0.1+
210507 G96 0.3- 0.3- 210507 L01 0.8+ 0.1- 210509 H01 0.0 0.1-
210507 G96 0.4- 0.4+ 210508 H21 0.3+ 0.4+ 210509 858 0.4+ 0.1+
210507 G96 0.3+ 0.2- 210508 H21 0.1- 0.1+ 210509 858 0.1- 0.5-
210507 I52 0.1- 0.2- 210508 I52 0.2- 0.4- 210509 H01 0.1- 0.0
210507 I52 0.5- 0.0 210508 I52 0.3- 0.6+ 210509 858 0.1- 0.0
210507 I52 0.4+ 0.5- 210508 I52 0.2+ 0.4- 210509 H01 0.1- 0.1+
210507 I52 0.1+ 0.5+ 210508 I52 0.0 0.4- 210509 I52 0.1+ 0.1-
210507 L01 0.2+ 0.0 210508 858 0.6+ 0.0 210509 I52 0.1- 0.3+
210507 L01 0.4+ 0.2+ 210508 858 0.5- 0.0 210509 I52 0.2- 0.1-
210507 L01 0.2- 0.1+ 210508 858 0.4+ 0.0 210509 I52 0.1+ 0.0
Ephemeris:
2021 JU2 a,e,i = 2.42, 0.59, 4 q = 0.9966
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 09 12 37 29.1 -08 28 12 0.2267 1.2263 171.8 6.7 23.2
...
2021 04 24 12 45 09.0 -02 27 54 0.1323 1.1290 157.5 19.9 22.3
...
2021 05 02 13 02 05.6 +04 49 12 0.08909 1.0852 149.2 28.4 21.7
...
2021 05 08 13 34 25.2 +15 55 54 0.06076 1.0571 140.9 37.0 21.0
2021 05 09 13 43 31.0 +18 41 59 0.05663 1.0529 139.0 39.0 20.9
2021 05 10 13 54 25.3 +21 49 50 0.05275 1.0488 136.8 41.3 20.8
...
2021 05 16 16 16 43.8 +46 34 44 0.03867 1.0272 113.6 64.4 20.7
...
2021 05 24 21 22 10.1 +44 48 26 0.05488 1.0069 82.4 94.5 22.6
...
2021 06 08 23 09 33.1 +27 32 15 0.1231 0.9979 78.5 94.5 24.3
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J109
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