MPEC 2021-J99 : 2021 JL2
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M.P.E.C. 2021-J99 Issued 2021 May 8, 11:57 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 JL2
Observations:
K21J02L* C2021 05 05.46237718 01 59.90 +25 43 34.2 20.40GVEJ099G96
K21J02L C2021 05 05.46761318 02 01.19 +25 43 56.4 21.13GVEJ099G96
K21J02L C2021 05 05.47287018 02 02.39 +25 44 18.3 20.56GVEJ099G96
K21J02L mC2021 05 06.44121518 06 02.42 +26 52 54.5 21.09GVEJ099G96
K21J02L C2021 05 06.44182418 06 02.59 +26 52 57.4 21.63GVEJ099G96
K21J02L mC2021 05 06.44649918 06 03.71 +26 53 17.4 21.40GVEJ099G96
K21J02L C2021 05 06.44711318 06 03.85 +26 53 20.1 21.14GVEJ099G96
K21J02L C2021 05 06.45236818 06 05.12 +26 53 42.4 20.89GVEJ099G96
K21J02L mC2021 05 06.45701018 06 06.25 +26 54 02.0 21.03GVEJ099G96
K21J02L C2021 05 06.45762218 06 06.40 +26 54 04.8 20.81GVEJ099G96
K21J02L KC2021 05 07.33942718 09 50.93 +27 56 44.7 20.82GVEJ099I52
K21J02L KC2021 05 07.34446518 09 52.16 +27 57 05.7 21.20GVEJ099I52
K21J02L KC2021 05 07.34698218 09 52.75 +27 57 17.0 22.15GVEJ099I52
K21J02L hC2021 05 08.01735818 12 45.85 +28 44 57.1 21.1 GVEJ099L01
K21J02L hC2021 05 08.04106618 12 51.85 +28 46 38.6 21.3 GVEJ099L01
K21J02L hC2021 05 08.04731118 12 53.52 +28 47 05.5 21.2 GVEJ099L01
K21J02L hC2021 05 08.05355518 12 55.04 +28 47 32.9 21.3 GVEJ099L01
K21J02L KC2021 05 08.31924818 14 04.76 +29 06 30.6 uEJ099H21
K21J02L KC2021 05 08.32181218 14 05.89 +29 06 42.4 VEJ099I52
K21J02L KC2021 05 08.32283118 14 05.68 +29 06 46.1 20.9 VuEJ099H21
K21J02L KC2021 05 08.32505818 14 06.23 +29 06 55.7 21.1 VuEJ099H21
K21J02L KC2021 05 08.32517218 14 06.78 +29 06 57.5 VEJ099I52
K21J02L KC2021 05 08.32651018 14 06.58 +29 07 01.9 20.8 VuEJ099H21
K21J02L C2021 05 08.34319418 14 11.33 +29 08 14.3 20.9 GVEJ099H01
K21J02L C2021 05 08.35011418 14 13.10 +29 08 44.0 20.9 GVEJ099H01
K21J02L KC2021 05 08.35073818 14 13.31 +29 08 47.1 21.30GVEJ099I52
K21J02L C2021 05 08.35936318 14 15.45 +29 09 23.8 21.2 GVEJ099H01
K21J02L C2021 05 08.36442018 14 16.74 +29 09 45.6 20.9 GVEJ099H01
Observer details:
G96 Mt. Lemmon Survey. Observers D. Rankin, 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 JL2 Earth MOID = 0.1632 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 301.77824 (2000.0) P Q
n 0.29088057 Peri. 111.32660 +0.50394950 +0.86193865
a 2.2559332 Node 189.53193 -0.86310188 +0.50007228
e 0.5662168 Incl. 19.63592 -0.03301589 +0.08360307
P 3.39 H 21.14 G 0.15 U 9
Residuals in seconds of arc
210505 G96 0.7- 0.0 210507 I52 0.5+ 0.1+ 210508 H21 0.0 0.3+
210505 G96 0.0 0.1+ 210507 I52 0.2+ 0.5- 210508 I52 0.4- 0.6+
210505 G96 0.5- 0.3- 210507 I52 0.3- 0.1- 210508 H21 0.3- 0.3+
210506 G96 0.1- 0.4- 210508 L01 0.2+ 0.2- 210508 H01 0.1+ 0.0
210506 G96 0.2+ 0.1- 210508 L01 0.0 0.5- 210508 H01 0.2+ 0.1-
210506 G96 0.1+ 0.0 210508 L01 1.1+ 0.4- 210508 I52 0.4- 0.0
210506 G96 0.1- 0.1+ 210508 L01 0.3+ 0.2+ 210508 H01 0.0 0.1-
210506 G96 0.1- 0.0 210508 H21 0.1+ 0.2+ 210508 H01 0.1+ 0.1-
210506 G96 0.0 0.1- 210508 I52 0.8- 0.0
210506 G96 0.1+ 0.0 210508 H21 0.2+ 0.3+
Ephemeris:
2021 JL2 a,e,i = 2.26, 0.57, 20 q = 0.9786
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 08 16 36 36.7 -00 09 34 0.6033 1.4482 127.2 33.4 22.2
...
2021 04 23 17 17 48.9 +12 03 44 0.4663 1.3323 125.7 37.8 21.6
...
2021 05 01 17 44 45.1 +20 33 40 0.4162 1.2725 120.9 42.8 21.4
...
2021 05 07 18 08 23.2 +27 32 36 0.3900 1.2292 115.7 47.7 21.3
2021 05 08 18 12 40.5 +28 43 47 0.3865 1.2222 114.7 48.6 21.3
2021 05 09 18 17 04.5 +29 55 02 0.3834 1.2152 113.7 49.6 21.3
...
2021 05 15 18 46 02.4 +36 56 15 0.3696 1.1743 107.2 55.3 21.3
...
2021 05 23 19 32 40.1 +45 22 49 0.3641 1.1236 98.2 63.1 21.4
...
2021 06 07 21 26 00.2 +55 28 46 0.3815 1.0443 83.7 75.0 21.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J99
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