[Iaude] MPEC X19: 2021 QR [a=1.34,e=0.45,i=20.2,H=21.77]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sun Dec 3 09:17:46 EST 2023
M.P.E.C. 2023-X19 Issued 2023 December 3, 14:16 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 QR
Revision to MPEC 2021-Q53
Additional Observations:
K21Q00R C2018 01 16.62130 11 40 34.564+63 40 15.50 21.6 wUEX019F51
K21Q00R C2018 01 16.63100 11 40 35.875+63 40 32.39 21.3 wUEX019F51
K21Q00R C2018 01 16.64066 11 40 37.133+63 40 49.14 21.7 wUEX019F51
K21Q00R C2018 01 16.65034 11 40 38.418+63 41 05.90 21.8 wUEX019F51
K21Q00R &C2018 08 08.35131701 50 48.48 +18 43 37.8 WEX019W84
K21Q00R &C2018 08 09.35205601 50 26.55 +19 02 55.6 WEX019W84
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M.
Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
W84 Cerro Tololo-DECam. Observers S. Benzvi, R. Demina. Measurer S. Deen.
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
180116 F51 0.14+ 0.17+ 180809 W84 0.02+ 0.02+ MPO782769 -0.04 days
Orbital elements:
2021 QR Earth MOID = 0.0745 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 181.30002 (2000.0) P Q
n 0.63557416 Peri. 243.60833 -0.71354838 +0.68983584
a 1.3397545 Node 339.24664 -0.45368115 -0.58805911
e 0.4539170 Incl. 20.20316 -0.53387464 -0.42227124
P 1.55 H 21.77 G 0.15 U 2
Residuals in seconds of arc
180116 F51 0.1- 0.1- 210818 F51 0.1+ 0.0 210822 F51 0.0 0.1+
180116 F51 0.1+ 0.0 210819 L01 0.2+ 0.0 210907 V06 0.0 0.4-
180116 F51 0.0 0.0 210819 L01 0.1+ 0.4+ 210907 V06 0.3+ 0.1+
180116 F51 0.0 0.1+ 210819 L01 0.4+ 0.5- 210907 V06 0.1+ 0.0
180808 W84 0.1- 0.2+ 210819 L01 0.2- 0.8- 210907 V06 0.1- 0.1+
180809 W84 0.1+ 0.0 210819 L01 0.3- 0.6- 210907 F51 0.1- 0.1+
210818 F51 0.1+ 0.1- 210819 F51 0.2- 0.1+ 210907 F51 0.2+ 0.1-
210818 F51 0.0 0.0 210819 F51 0.2- 0.3+ 210907 F51 0.0 0.0
210818 F51 0.1+ 0.2- 210819 F51 0.1- 0.0 210928 291 0.4- 0.2+
210818 F51 0.1- 0.2- 210822 F51 0.4+ 0.2- 210928 291 0.2- 0.3-
210818 F51 0.3- 0.1+ 210822 F51 0.3+ 0.0
Ephemeris:
2021 QR a,e,i = 1.34, 0.45, 20 q = 0.7316
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 11 03 04 27 56.3 +58 17 18 1.0906 1.8979 131.3 23.1 24.4
...
2023 11 18 03 42 50.4 +60 22 16 1.0056 1.8655 138.6 20.5 24.2
...
2023 11 26 03 13 36.0 +60 11 13 0.9789 1.8449 139.6 20.3 24.1
...
2023 12 02 02 52 28.9 +59 23 15 0.9677 1.8278 138.6 20.9 24.0
2023 12 03 02 49 10.3 +59 12 10 0.9666 1.8249 138.3 21.0 24.0
2023 12 04 02 45 56.3 +59 00 17 0.9657 1.8219 138.0 21.2 24.0
...
2023 12 10 02 28 27.7 +57 33 52 0.9644 1.8030 135.3 22.6 24.1
...
2023 12 18 02 11 06.3 +55 09 20 0.9732 1.7759 130.3 25.0 24.1
...
2024 01 02 01 56 47.1 +50 10 52 1.0158 1.7184 118.5 30.2 24.3
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-X19
More information about the Iaude
mailing list