[Iaude] MPEC B100: 2021 CJ16 [a=2.03,e=0.44,i=6.6,H=20.04]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Jan 23 09:29:56 EST 2024
M.P.E.C. 2024-B100 Issued 2024 January 23, 14:28 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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
2021 CJ16
Revision to MPEC 2021-E137
Additional Observations:
K21C16J &C2014 12 28.32728809 09 03.34 +26 54 09.0 WEB100W84
K21C16J &C2014 12 28.33312409 09 03.10 +26 54 11.3 WEB100W84
K21C16J C2015 01 24.41022008 39 06.780+30 02 13.44 22.71GVEB100F51
K21C16J C2015 01 24.42195408 39 05.685+30 02 18.11 22.75GVEB100F51
K21C16J C2015 01 27.51755708 34 27.329+30 20 36.18 23.47GVEB100F51
K21C16J C2015 02 13.31286608 09 13.005+31 24 55.92 23.11GVEB100F51
K21C16J C2015 02 13.32624408 09 11.841+31 24 56.89 22.87GVEB100F51
K21C16J C2024 01 21.63245512 40 14.792+05 02 59.94 23.23GVEB100F51
K21C16J C2024 01 21.64425712 40 15.641+05 02 56.35 22.46GVEB100F51
K21C16J C2024 01 21.65600212 40 16.487+05 02 52.59 23.03GVEB100F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
W84 Cerro Tololo-DECam. Observers D. Lang, N. Ross, A. Walker. Measurer S.
Deen. 4.0-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
141228 W84 45.2+ 14.8+ 240121 F51 40.3+ 22.7+ MPO782733 +0.00 days
Orbital elements:
2021 CJ16 Earth MOID = 0.1462 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 264.89328 (2000.0) P Q
n 0.34055720 Peri. 223.54156 -0.20246743 +0.97708967
a 2.0308414 Node 34.92905 -0.86416459 -0.14675416
e 0.4392934 Incl. 6.57850 -0.46068048 -0.15413954
P 2.89 H 20.04 G 0.15 U 2
Residuals in seconds of arc
141228 W84 0.0 0.2- 210311 I52 0.1+ 0.5+ 210331 I52 0.5+ 0.1+
141228 W84 0.0 0.2- 210311 I52 0.1- 0.4+ 210402 G96 0.3+ 0.0
150124 F51 0.2+ 0.4- 210313 033 0.0 0.3+ 210402 G96 0.4+ 0.2+
150124 F51 0.1- 0.2- 210313 033 0.3+ 0.0 210402 G96 0.1+ 0.1-
150127 F51 0.2+ 0.1+ 210313 033 0.4+ 0.0 210402 G96 0.2- 0.5-
150213 F51 0.1- 0.5+ 210313 J04 0.5+ 0.7- 210414 F51 0.1- 0.0
150213 F51 0.2- 0.1- 210318 711 0.5- 0.7+ 210414 F51 0.2+ 0.1+
210212 F52 0.3+ 0.1+ 210318 711 0.7- 0.6+ 210414 F51 0.0 0.1-
210212 F52 0.3+ 0.3+ 210318 711 0.5- 0.6+ 210414 F51 0.0 0.1+
210212 F52 0.2- 0.1- 210318 F51 0.1- 0.0 210528 695 0.2+ 0.2+
210311 G96 0.1- 0.3- 210318 F51 0.2+ 0.1+ 210528 695 0.1+ 0.0
210311 G96 0.3- 0.6- 210318 F51 0.0 0.1+ 210528 695 0.3- 0.2-
210311 G96 0.2+ 0.0 210318 F51 0.1+ 0.2+ 240121 F51 0.1+ 0.1+
210311 G96 0.2- 0.1+ 210331 I52 0.0 0.2- 240121 F51 0.0 0.1+
210311 I52 0.1+ 0.2+ 210331 I52 0.2+ 0.4+ 240121 F51 0.0 0.0
210311 I52 0.8+ 0.1- 210331 I52 0.0 0.4+
Ephemeris:
2021 CJ16 a,e,i = 2.03, 0.44, 7 q = 1.1387
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 12 24 12 00 26.6 +08 02 18 1.6180 1.9603 94.6 30.0 23.8
...
2024 01 08 12 22 09.0 +06 20 40 1.3760 1.8768 104.2 30.5 23.4
...
2024 01 16 12 32 59.9 +05 33 11 1.2518 1.8312 109.4 30.4 23.2
...
2024 01 22 12 40 42.4 +05 01 10 1.1616 1.7967 113.5 30.2 22.9
2024 01 23 12 41 57.0 +04 56 09 1.1469 1.7909 114.1 30.1 22.9
2024 01 24 12 43 11.0 +04 51 13 1.1322 1.7851 114.8 30.0 22.9
...
2024 01 30 12 50 17.9 +04 23 40 1.0459 1.7501 119.0 29.5 22.6
...
2024 02 07 12 58 55.4 +03 52 38 0.9359 1.7032 124.8 28.4 22.3
...
2024 02 22 13 11 34.6 +03 12 38 0.7480 1.6148 136.3 25.0 21.6
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-B100
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