[Iaude] MPEC O83: 2020 YW4 [a=2.59,e=0.53,i=26.8,H=19.95]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Mon Jul 29 11:05:14 EDT 2024
M.P.E.C. 2024-O83 Issued 2024 July 29, 15:03 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
2020 YW4
Revision to MPEC 2020-Y150
Additional Observations:
K20Y04W C2017 01 02.57991111 34 19.106+05 27 21.86 23.14GVEO083F51
K20Y04W C2017 01 02.60339611 34 19.681+05 27 40.56 23.22GVEO083F51
K20Y04W C2017 01 02.61520211 34 19.985+05 27 49.59 24.21GVEO083F51
K20Y04W C2017 02 22.40161711 11 52.190+21 29 00.20 22.42GVEO083F51
K20Y04W C2017 02 22.41428111 11 51.331+21 29 14.63 21.47GVEO083F51
K20Y04W C2024 07 01.51709922 28 40.748-03 16 25.20 21.79GVEO083F52
K20Y04W C2024 07 01.52898322 28 41.273-03 16 29.85 22.22GVEO083F52
K20Y04W C2024 07 09.54550622 34 32.394-04 27 14.49 22.52GVEO083F51
K20Y04W C2024 07 09.58103322 34 33.699-04 27 37.04 22.66GVEO083F51
K20Y04W C2024 07 28.45086622 43 43.200-09 41 01.42 21.78wXEO083F51
K20Y04W C2024 07 28.47286322 43 43.529-09 41 31.93 21.87wXEO083F51
K20Y04W C2024 07 28.48386522 43 43.683-09 41 47.57 21.68wXEO083F51
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.
F52 Pan-STARRS 2, 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170102 F51 52.8+ 23.1+ 240728 F51 95.3+ 6.2+ E2021-B84 -0.04 days
Orbital elements:
2020 YW4 Earth MOID = 0.5135 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5 Veres
M 347.93339 (2000.0) P Q
n 0.23683846 Peri. 269.77870 +0.58137225 -0.75918100
a 2.5872272 Node 139.58962 +0.80062295 +0.59786179
e 0.5299380 Incl. 26.83725 -0.14494553 +0.25730426
P 4.16 H 19.95 G 0.15 U 1
Residuals in seconds of arc
170102 F51 0.1- 0.1- 210105 807 0.1+ 0.1+ 210203 807 0.7- 0.1-
170102 F51 0.0 0.0 210105 807 0.0 0.0 210203 807 0.4- 0.2+
170102 F51 0.3+ 0.3- 210106 I52 0.6+ 2.5- 210203 807 0.1+ 0.0
170222 F51 0.0 0.1+ 210106 I52 0.1- 0.1- 210204 807 0.3- 0.5-
170222 F51 0.1+ 0.2+ 210106 I52 0.2+ 0.2- 210204 807 0.2- 0.1-
201222 G96 0.4- 0.1+ 210111 F51 0.1+ 0.0 210204 807 0.4- 0.1-
201222 G96 0.2+ 0.9- 210111 F51 0.1+ 0.2+ 210207 I52 0.5- 0.3-
201222 G96 0.1- 0.2- 210111 F51 0.1- 0.1+ 210207 I52 0.1- 0.1-
201225 F51 0.1- 0.0 210112 G96 (0.0 1.0-) 210207 I52 0.1- 0.3-
201225 F51 0.0 0.1+ 210112 G96 0.6- 0.0 210211 F51 0.1+ 0.0
201225 F51 0.0 0.0 210112 G96 0.4+ 0.6+ 210211 F51 0.0 0.1+
201225 F51 0.1+ 0.0 210112 G96 0.0 0.4- 210211 F51 0.0 0.0
201226 807 0.1- 0.0 210113 807 0.1- 0.2+ 240701 F52 0.3+ 0.2-
201226 807 0.1- 0.0 210113 807 0.1- 0.3+ 240701 F52 0.2+ 0.1+
201226 807 0.0 0.0 210113 807 0.2- 0.6+ 240709 F51 0.4+ 0.3-
201226 291 0.4- 0.1- 210114 807 0.3- 0.2- 240709 F51 0.3+ 0.2+
201226 291 0.1- 0.1- 210114 807 0.2- 0.5- 240728 F51 0.4- 0.1-
201228 807 0.2+ 0.1- 210117 807 0.2+ 0.3- 240728 F51 0.1+ 0.2+
201228 807 0.1- 0.2- 210117 807 0.5+ 0.2- 240728 F51 0.2+ 0.0
201228 807 0.1+ 0.1- 210117 807 0.4+ 0.0
Ephemeris:
2020 YW4 a,e,i = 2.59, 0.53, 27 q = 1.2162
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 06 29 22 26 38.1 -03 00 02 1.3167 2.0256 119.9 25.8 23.3
...
2024 07 14 22 37 19.7 -05 20 36 1.0855 1.9260 132.7 22.8 22.6
...
2024 07 22 22 41 24.4 -07 26 42 0.9749 1.8726 140.3 20.3 22.3
...
2024 07 28 22 43 35.1 -09 30 30 0.8990 1.8325 146.3 17.9 22.0
2024 07 29 22 43 52.0 -09 53 50 0.8870 1.8258 147.3 17.5 21.9
2024 07 30 22 44 07.5 -10 17 58 0.8752 1.8191 148.3 17.0 21.9
...
2024 08 05 22 45 08.7 -13 00 07 0.8090 1.7791 154.5 14.2 21.5
...
2024 08 13 22 45 03.0 -17 23 31 0.7336 1.7260 162.1 10.4 21.1
...
2024 08 28 22 40 30.5 -27 41 06 0.6376 1.6280 161.8 11.2 20.7
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-O83
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