[Iaude] MPEC J312: 2021 AE4 [a=1.16,e=0.16,i=15.8,H=21.78]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Wed May 15 14:21:58 EDT 2024
M.P.E.C. 2024-J312 Issued 2024 May 15, 18:20 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 AE4
Revision to MPEC 2021-A125
Additional Observations:
K21A04E <C2016 09 10.35172000 14 23.589-63 57 35.07 21.27iVEJ312W84
K21A04E <C2016 09 10.35308500 14 23.132-63 57 33.02 21.54rVEJ312W84
K21A04E <C2016 09 10.35444900 14 22.682-63 57 30.83 21.97gVEJ312W84
K21A04E &C2016 10 03.11569623 00 08.46 -50 05 19.1 WEJ312W84
K21A04E <C2016 10 03.11707923 00 08.311-50 05 15.60 22.27gVEJ312W84
Observer details:
W84 Cerro Tololo-DECam. Observers M.-Y. Wang, E. Kovacs, K. Story, D.
Hollowood, B. Nord. Measurers A. Coffinet, S. Deen. 4.0-m Reflector +
CCD, 4.0-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160910 W84 0.04- 0.03- 161003 W84 0.04- 0.01- MPO624180 +0.01 days
Orbital elements:
2021 AE4 PHA, Earth MOID = 0.0375 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 120.14656 (2000.0) P Q
n 0.78931285 Peri. 172.40175 -0.74000644 +0.63999821
a 1.1595868 Node 49.54246 -0.63051574 -0.55299696
e 0.1624537 Incl. 15.77571 -0.23418019 -0.53347601
P 1.25 H 21.78 G 0.15 U 1
Residuals in seconds of arc
160910 W84 0.1+ 0.0 210111 033 0.1- 0.4- 210224 291 0.2- 0.0
160910 W84 0.0 0.0 210111 033 0.2- 0.3- 210224 291 0.0 0.1-
160910 W84 0.0 0.1+ 210111 033 0.1- 0.4- 210224 291 0.2- 0.0
161003 W84 0.0 0.1+ 210116 I52 0.1+ 0.0 210226 695 0.1- 0.2+
161003 W84 0.1- 0.0 210116 I52 0.2+ 0.1- 210226 695 0.2+ 0.3+
210106 F51 0.1+ 0.3+ 210116 I52 0.0 0.1+ 210226 695 0.1+ 0.4+
210106 F51 0.1- 0.0 210116 I52 0.0 0.6- 210302 291 0.1- 0.1-
210106 F51 0.2+ 0.1+ 210118 291 0.2+ 0.1- 210302 291 0.0 0.0
210108 291 0.2+ 0.3- 210118 291 0.1- 0.0 210302 291 0.1- 0.0
210108 291 0.2+ 0.1- 210118 291 0.1- 0.0 210402 291 0.0 0.4+
210108 291 0.1+ 0.1- 210131 695 0.5- 0.3+ 210402 291 0.3+ 0.4-
210109 L01 0.2+ 0.1- 210131 695 0.5+ 0.6+ 210402 291 0.4- 0.1+
210109 L01 0.3- 0.1+ 210131 695 0.0 0.2+
210109 L01 0.3- 0.3- 210210 T12 0.0 0.1-
Ephemeris:
2021 AE4 a,e,i = 1.16, 0.16, 16 q = 0.9712
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 04 15 01 04 57.3 +00 14 07 2.2654 1.3000 11.8 9.1 24.7
...
2024 04 30 01 45 33.8 +05 25 42 2.2730 1.3205 14.3 10.9 24.8
...
2024 05 08 02 07 09.4 +08 04 22 2.2717 1.3292 15.8 11.9 24.9
...
2024 05 14 02 23 24.8 +09 59 14 2.2681 1.3346 17.0 12.8 24.9
2024 05 15 02 26 07.9 +10 18 01 2.2673 1.3354 17.2 12.9 24.9
2024 05 16 02 28 51.2 +10 36 40 2.2664 1.3362 17.4 13.1 25.0
...
2024 05 22 02 45 15.3 +12 26 15 2.2599 1.3405 18.7 14.0 25.0
...
2024 05 30 03 07 23.3 +14 45 33 2.2477 1.3447 20.4 15.2 25.0
...
2024 06 14 03 50 00.8 +18 43 09 2.2142 1.3480 23.7 17.7 25.1
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-J312
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