MPEC 2021-K60 : 2021 HY9
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M.P.E.C. 2021-K60 Issued 2021 May 20, 16:31 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 HY9
Observations:
K21H09Y* C2021 04 20.25055 13 57 40.55 +10 13 41.0 19.6 GVEK060U68
K21H09Y C2021 04 20.25443 13 57 45.02 +10 10 56.1 19.6 GVEK060U68
K21H09Y C2021 04 20.28205 13 58 17.36 +09 50 58.4 20.0 GVEK060U68
K21H09Y C2021 04 20.28593 13 58 21.94 +09 48 09.9 20.0 GVEK060U68
K21H09Y C2021 04 21.19643 14 23 04.13 -03 58 32.7 19.5 GVEK060U68
K21H09Y C2021 04 21.20031 14 23 11.18 -04 02 48.2 19.5 GVEK060U68
K21H09Y C2021 04 21.30358 14 26 20.39 -05 59 03.1 19.1 GVEK060U68
K21H09Y C2021 04 21.30745 14 26 27.49 -06 03 29.8 19.1 GVEK060U68
Observer details:
U68 JPL SynTrack Robotic Telescope, Auberry. Observers N. Saini, C. Zhai, R.
Trahan, M. Zhan, M. Shao. 0.28-m f/2.2 Schmidt + CCD.
Orbital elements:
2021 HY9 Earth MOID = 0.0103 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Pike
M 314.47524 (2000.0) P Q
n 0.32567877 Peri. 196.73803 -0.66548417 +0.73901781
a 2.0922316 Node 31.77495 -0.65999774 -0.51703141
e 0.5204889 Incl. 11.47982 -0.34861698 -0.43189258
P 3.03 H 27.92 G 0.15 U 8
Residuals in seconds of arc
210420 U68 0.4+ 1.3- 210420 U68 0.4+ 1.0+ 210421 U68 0.3+ 0.1+
210420 U68 0.6- 0.5+ 210421 U68 0.4+ 0.7- 210421 U68 0.3- 0.0
210420 U68 0.2- 0.1- 210421 U68 0.4- 0.5+
Ephemeris:
2021 HY9 a,e,i = 2.09, 0.52, 11 q = 1.0032
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 20 13 52 13.5 +13 07 26 0.01908 1.0220 155.5 24.1 20.5
...
2021 05 05 23 29 37.4 -56 27 31 0.07395 1.0029 83.6 92.2 25.5
...
2021 05 13 23 49 25.7 -53 38 18 0.1183 1.0067 84.8 88.5 26.4
...
2021 05 19 23 56 12.0 -52 31 40 0.1504 1.0157 87.3 84.2 26.8
2021 05 20 23 57 01.0 -52 23 09 0.1557 1.0178 87.8 83.4 26.8
2021 05 21 23 57 45.9 -52 15 13 0.1608 1.0199 88.3 82.7 26.9
...
2021 05 27 00 01 02.9 -51 37 55 0.1910 1.0358 91.5 77.9 27.1
...
2021 06 04 00 02 38.0 -51 11 24 0.2283 1.0642 96.4 71.3 27.3
...
2021 06 19 23 55 45.9 -51 18 40 0.2898 1.1359 107.2 58.7 27.6
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-K60
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