MPEC 2024-B86 : 2021 QE5
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M.P.E.C. 2024-B86 Issued 2024 January 21, 21:08 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 QE5
Revision to MPEC 2021-R41
Additional Observations:
K21Q05E C2024 01 21.36237209 11 40.975+61 06 47.10 21.04wXEB086F51
K21Q05E C2024 01 21.37602109 11 36.845+61 06 32.71 20.59wXEB086F51
K21Q05E C2024 01 21.39035609 11 32.475+61 06 17.18 20.69wXEB086F51
K21Q05E C2024 01 21.40401909 11 28.308+61 06 02.53 20.64wXEB086F51
K21Q05E C2024 01 21.51277809 10 54.775+61 03 56.83 20.58GVEB086F51
K21Q05E C2024 01 21.51342809 10 54.571+61 03 56.04 20.43GVEB086F51
K21Q05E KB2024 01 21.85536009 09 21.49 +60 56 34.1 20.5 GXEB086I93
K21Q05E KB2024 01 21.86125509 09 19.74 +60 56 27.9 20.5 GXEB086I93
K21Q05E KB2024 01 21.86713909 09 18.11 +60 56 21.5 21.2 GXEB086I93
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.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CMO.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
240121 F51 9+ 4+ 240121 I93 10+ 4+ MPO782769 +3.27 days
Orbital elements:
2021 QE5 Earth MOID = 0.1109 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 234.83952 (2000.0) P Q
n 0.62158548 Peri. 218.12314 -0.97884356 +0.09326382
a 1.3597805 Node 325.85493 +0.04138991 -0.78142059
e 0.2162887 Incl. 18.93311 -0.20038002 -0.61699573
P 1.59 H 22.12 G 0.15 U 6
Residuals in seconds of arc
210829 F51 0.2- 0.1- 210831 F51 0.1- 0.1+ 240121 F51 0.0 0.2-
210829 F51 0.1- 0.1+ 210831 F51 0.3+ 0.0 240121 F51 0.0 0.1-
210829 F51 0.0 0.1- 210903 695 0.2- 0.0 240121 F51 0.2+ 0.1-
210829 F51 0.2- 0.3+ 210903 695 0.0 0.1+ 240121 F51 0.2+ 0.1-
210829 F51 0.2- 0.1+ 210903 695 0.1- 0.1+ 240121 I93 0.6- 0.1-
210831 F51 0.1- 0.0 240121 F51 0.3+ 0.0 240121 I93 0.8- 0.3+
210831 F51 0.2+ 0.0 240121 F51 0.2+ 0.0 240121 I93 0.0 0.5+
Ephemeris:
2021 QE5 a,e,i = 1.36, 0.22, 19 q = 1.0657
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 12 22 10 04 40.2 +61 27 29 0.4418 1.2835 123.9 39.5 22.5
...
2024 01 06 10 00 34.9 +62 41 20 0.3455 1.2350 130.2 37.4 21.8
...
2024 01 14 09 41 16.0 +62 33 10 0.2983 1.2099 134.0 35.8 21.4
...
2024 01 20 09 17 52.1 +61 30 52 0.2655 1.1917 136.9 34.3 21.0
2024 01 21 09 13 19.3 +61 13 28 0.2603 1.1887 137.4 34.1 21.0
2024 01 22 09 08 37.3 +60 53 38 0.2551 1.1857 137.9 33.8 20.9
...
2024 01 28 08 38 12.5 +57 54 39 0.2264 1.1684 140.6 32.4 20.6
...
2024 02 05 07 57 30.9 +50 34 45 0.1947 1.1466 142.6 31.5 20.2
...
2024 02 20 07 05 54.5 +26 02 22 0.1667 1.1112 134.2 39.6 20.0
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-B86
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