MPEC 2023-C121 : 2021 QB98
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M.P.E.C. 2023-C121 Issued 2023 February 13, 17:13 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 QB98
Observations:
K21Q98B*.C2021 08 29.09476 21 51 16.286-11 50 13.75 24.4 rVEC121807
K21Q98B .C2021 08 30.09939 21 51 13.162-11 50 30.98 24.3 rVEC121807
K21Q98B .C2022 09 02.23398 21 53 30.304-11 41 03.66 24.4 rVEC121304
K21Q98B .C2022 09 03.24759 21 53 27.143-11 41 21.21 24.5 rVEC121304
K21Q98B .C2022 10 16.02476 21 51 41.908-11 51 20.98 24.3 rVEC121304
K21Q98B .C2022 11 19.03098 21 51 22.759-11 53 51.06 24.4 rVEC121304
Observer details:
304 Las Campanas Observatory. Observer S. S. Sheppard. 6.5-m Magellan-Baade
telescope + CCD.
807 Cerro Tololo Observatory, La Serena. Observers C. Trujillo, S. S.
Sheppard. Measurer S. S. Sheppard. 4.0-m CTIO reflector + CCD.
Orbital elements:
2021 QB98
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Alexandersen
M 302.10786 (2000.0) P Q
n 0.00191471 Peri. 284.48278 +0.05532451 -0.99825829
a 64.2294394 Node 162.30734 +0.94007671 +0.04516524
e 0.5241546 Incl. 3.86472 +0.33644460 +0.03795382
P 515 H 6.54 G 0.15 U 9
Residuals in seconds of arc
210829 807 0.1- 0.0 220902 304 0.1+ 0.1+ 221016 304 0.1- 0.0
210830 807 0.2+ 0.0 220903 304 0.1- 0.1- 221119 304 0.1+ 0.0
Ephemeris:
2021 QB98 a,e,i = 64.23, 0.52, 4 q = 30.5633
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 01 14 21 53 20.2 -11 44 46 63.8668 63.0466 33.3 0.5 24.7
...
2023 01 29 21 54 14.8 -11 40 11 63.9641 63.0294 18.2 0.3 24.6
...
2023 02 06 21 54 45.8 -11 37 31 63.9902 63.0203 10.3 0.2 24.6
...
2023 02 12 21 55 09.6 -11 35 29 63.9975 63.0134 4.4 0.1 24.6
2023 02 13 21 55 13.5 -11 35 08 63.9977 63.0122 3.4 0.1 24.6
2023 02 14 21 55 17.5 -11 34 47 63.9976 63.0111 2.5 0.0 24.6
...
2023 02 20 21 55 41.4 -11 32 43 63.9906 63.0042 3.8 0.1 24.6
...
2023 02 28 21 56 13.0 -11 29 57 63.9647 62.9951 11.7 0.2 24.6
...
2023 03 15 21 57 09.6 -11 24 56 63.8669 62.9779 26.4 0.4 24.6
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-C121
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