[Iaude] MPEC K71: 2018 JA3 [a=1.73,e=0.29,i=20.5,H=21.4]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue May 19 11:02:21 EDT 2020
M.P.E.C. 2020-K71 Issued 2020 May 19, 15:01 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 JA3
Revision to MPEC 2018-J84
Additional Observations:
K18J03A KC2020 05 17.27784307 40 18.199+38 01 22.77 24.76GVEK071T14
K18J03A KC2020 05 19.26329807 47 09.402+37 34 44.54 25.20GVEK071T14
Observer details:
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observers L. Wells, C. Crowder.
Measurer D. J. Tholen. 3.6-m f/4.1 reflector + MegaCam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
200517 T14 0.12- 0.01- 200519 T14 0.12- 0.02- MPO457151 -0.35 days
Orbital elements:
2018 JA3 Earth MOID = 0.2276 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 334.14025 (2000.0) P Q
n 0.43393287 Peri. 159.12726 -0.88508284 +0.39028093
a 1.7279096 Node 46.53243 -0.46098844 -0.65996055
e 0.2925332 Incl. 20.45152 -0.06417184 -0.64197576
P 2.27 H 21.4 G 0.15 U 2
Residuals in seconds of arc
180513 G96 0.1+ 0.1+ 180514 033 0.4- 0.1+ 180519 691 0.0 0.1+
180513 G96 0.1+ 0.1- 180515 673 0.1+ 0.0 180519 691 0.1- 0.4-
180513 G96 0.4- 0.2- 180515 673 0.3+ 0.0 180519 691 0.4- 0.7+
180513 G96 0.2- 0.2- 180515 H01 0.2- 0.0 180522 I52 0.2- 0.1+
180513 I52 0.3+ 0.0 180515 H01 0.1- 0.1- 180522 I52 0.5- 0.8-
180513 I52 0.3- 0.2+ 180515 H01 0.2- 0.1- 180522 I52 0.2- 0.2+
180513 I52 0.2- 0.3+ 180515 H01 0.1- 0.0 180522 I52 0.1- 0.3-
180513 I52 0.1- 0.3- 180515 I52 0.2+ 0.2- 180523 I52 0.3- 0.1+
180513 673 0.0 0.3- 180515 I52 0.0 0.1- 180523 I52 0.2- 0.9-
180513 673 0.0 0.0 180515 I52 0.1- 0.3+ 180523 I52 0.0 0.4-
180513 033 0.1- 0.5+ 180515 I52 0.1- 0.0 180523 I52 0.1- 0.1+
180513 033 0.2- 0.2+ 180516 H36 0.1- 0.2+ 180602 G96 0.6+ 0.0
180513 033 0.3+ 0.1+ 180516 H36 0.4- 0.2- 180602 G96 0.3- 0.5+
180513 033 0.1+ 0.1- 180516 H36 (1.1- 1.7-) 180602 G96 0.4- 0.8+
180513 033 0.2+ 0.3+ 180516 H36 1.1- 0.6- 180602 G96 0.3+ 0.6+
180513 033 0.2- 0.0 180516 G96 0.7- 0.1+ 180607 474 0.3+ 0.0
180513 033 0.1- 0.1+ 180516 G96 0.1- 0.2- 180607 474 0.0 0.1-
180513 J95 1.2+ 0.1+ 180516 G96 0.1- 0.5+ 180607 474 0.1+ 0.2-
180513 J95 0.1- 0.2+ 180516 G96 0.0 0.0 180607 474 0.1+ 0.3-
180514 033 0.1- 0.1- 180517 I52 0.5+ 0.2- 200517 T14 0.0 0.0
180514 033 0.2- 0.6- 180517 I52 0.1- 0.3- 200519 T14 0.0 0.0
180514 033 0.0 0.1- 180517 I52 0.5- 0.2-
Ephemeris:
2018 JA3 a,e,i = 1.73, 0.29, 20 q = 1.2224
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 04 19 06 05 05.7 +41 57 05 1.6032 1.4627 63.4 37.9 24.8
...
2020 05 04 06 54 44.6 +40 24 05 1.6321 1.4065 58.9 37.8 24.7
...
2020 05 12 07 22 06.8 +39 05 24 1.6425 1.3781 56.8 37.8 24.7
...
2020 05 18 07 42 48.0 +37 51 52 1.6486 1.3577 55.3 37.8 24.7
2020 05 19 07 46 15.1 +37 38 22 1.6495 1.3544 55.1 37.8 24.7
2020 05 20 07 49 42.1 +37 24 30 1.6504 1.3512 54.9 37.8 24.7
...
2020 05 26 08 10 22.4 +35 53 50 1.6549 1.3321 53.6 37.7 24.6
...
2020 06 03 08 37 41.8 +33 32 55 1.6598 1.3084 52.0 37.7 24.6
...
2020 06 18 09 27 35.7 +28 09 44 1.6676 1.2705 49.5 37.5 24.5
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-K71
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