MPEC 2021-F77 : 2021 ES5
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M.P.E.C. 2021-F77 Issued 2021 March 22, 18:17 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 ES5
Observations:
K21E05S* C2021 03 15.42487 12 46 23.365-00 54 52.00 21.5 wUEF077F51
K21E05S C2021 03 15.43841 12 46 23.196-00 54 40.42 21.6 wUEF077F51
K21E05S C2021 03 15.45201 12 46 23.029-00 54 28.45 21.7 wUEF077F51
K21E05S 'C2021 03 19.11996 12 45 50.719+00 04 25.51 20.8 GVEF077309
K21E05S 'C2021 03 19.12118 12 45 50.700+00 04 26.73 20.9 GVEF077309
K21E05S 'C2021 03 19.12272 12 45 50.673+00 04 28.54 21.0 GVEF077309
K21E05S 'C2021 03 19.12393 12 45 50.645+00 04 29.53 20.9 GVEF077309
K21E05S 'C2021 03 19.12588 12 45 50.613+00 04 31.66 21.5 GVEF077309
K21E05S 'C2021 03 19.12710 12 45 50.592+00 04 32.95 21.5 GVEF077309
K21E05S 'C2021 03 19.13297 12 45 50.481+00 04 39.18 21.1 GVEF077309
K21E05S 'C2021 03 19.13418 12 45 50.457+00 04 40.31 21.1 GVEF077309
Observer details:
309 Cerro Paranal. Observers M. Altmann, D. Hestroffer, A. Cellino, P. Tanga,
F. Spoto, B. Carry, T. Lister, J. Marchant, S. Eggl, R. Smart. Measurers
C. Barache, S. Bouquillon, T. Carlucci, F. Taris, W. Thuillot, R. Mendez,
D. Souami. 2.6-m f/5.5 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
Orbital elements:
2021 ES5 PHA, Earth MOID = 0.0372 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Weryk
M 312.80158 (2000.0) P Q
n 0.26851961 Peri. 105.34550 +0.02688518 +0.99941383
a 2.3794982 Node 166.14316 -0.94774802 +0.03222598
e 0.6317521 Incl. 5.07696 -0.31788502 -0.01155349
P 3.67 H 21.7 G 0.15 U 7
Residuals in seconds of arc
210315 F51 0.0 0.1+ 210319 309 0.0 0.2+ 210319 309 0.0 0.1-
210315 F51 0.0 0.1- 210319 309 0.1- 0.1- 210322 G96 0.3+ 0.1+
210315 F51 0.0 0.0 210319 309 0.0 0.0 210322 G96 0.1- 0.1-
210319 309 0.0 0.1+ 210319 309 0.0 0.0 210322 G96 0.4- 0.1+
210319 309 0.0 0.0 210319 309 0.0 0.0 210322 G96 0.2+ 0.1-
Ephemeris:
2021 ES5 a,e,i = 2.38, 0.63, 5 q = 0.8762
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 02 20 12 40 35.3 -03 51 30 0.7781 1.6641 140.4 22.2 23.3
...
2021 03 07 12 46 01.8 -02 32 10 0.5727 1.5297 154.7 16.1 22.3
...
2021 03 15 12 46 25.0 -01 00 51 0.4771 1.4571 162.9 11.6 21.6
...
2021 03 21 12 45 22.8 +00 38 48 0.4120 1.4026 168.9 7.9 21.1
2021 03 22 12 45 05.5 +00 58 31 0.4017 1.3935 169.8 7.3 21.0
2021 03 23 12 44 46.1 +01 19 12 0.3916 1.3845 170.6 6.7 20.9
...
2021 03 29 12 42 06.6 +03 46 20 0.3340 1.3301 172.4 5.7 20.4
...
2021 04 06 12 36 28.0 +08 20 04 0.2657 1.2585 164.2 12.5 20.1
...
2021 04 21 12 17 17.3 +23 47 38 0.1623 1.1294 137.2 37.2 19.5
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-F77
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