MPEC 2023-F80 : 2021 RU216
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M.P.E.C. 2023-F80 Issued 2023 March 21, 02:26 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 RU216
The following astrometry was found among the isolated tracklets and linked
by D. Rankin, D. Bamberger and B. Gray.
Observations:
K21RL6U C2021 07 13.57093623 25 17.172-10 56 12.51 22.62GVEF080F51
K21RL6U C2021 07 13.58215223 25 18.398-10 56 08.79 22.75GVEF080F51
K21RL6U C2021 07 13.59336123 25 19.633-10 56 04.32 22.95GVEF080F51
K21RL6U C2021 07 13.60457523 25 20.867-10 56 00.15 23.05GVEF080F51
K21RL6U C2021 08 03.50146523 57 42.002-09 26 22.82 22.48GVEF080F51
K21RL6U C2021 08 03.51269423 57 42.613-09 26 21.63 22.29GVEF080F51
K21RL6U C2021 08 17.55105900 06 46.497-09 21 28.53 21.77GVEF080F51
K21RL6U C2021 08 17.56221100 06 46.529-09 21 29.21 22.17GVEF080F51
K21RL6U C2021 08 17.57336300 06 46.595-09 21 29.87 22.16GVEF080F51
K21RL6U C2021 08 17.58973200 06 46.654-09 21 30.56 22.41GVEF080F51
K21RL6U C2021 08 28.50778400 06 07.160-09 39 35.58 22.90GVEF080F51
K21RL6U C2021 08 28.52064100 06 06.750-09 39 37.56 21.93GVEF080F51
K21RL6U C2021 08 28.53350000 06 06.345-09 39 38.72 21.81GVEF080F51
K21RL6U C2021 08 28.54636500 06 05.938-09 39 40.38 22.11GVEF080F51
K21RL6U C2021 08 30.61788800 05 15.876-09 44 00.57 21.76GVEF080F51
K21RL6U C2021 08 30.61853600 05 15.852-09 44 00.71 22.05GVEF080F51
K21RL6U C2021 09 05.37411300 02 04.508-09 55 41.96 22.17GVEF080F51
K21RL6U C2021 09 05.38569200 02 03.964-09 55 43.56 22.08GVEF080F51
K21RL6U C2021 09 05.39726900 02 03.365-09 55 44.80 21.72GVEF080F51
K21RL6U C2021 09 05.40881100 02 02.800-09 55 46.33 21.95GVEF080F51
K21RL6U C2021 09 07.47105400 00 36.058-09 59 22.62 21.81GVEF080F52
K21RL6U C2021 09 07.48206500 00 35.473-09 59 24.00 22.04GVEF080F52
K21RL6U C2021 09 07.49307900 00 34.879-09 59 24.67 21.36GVEF080F52
K21RL6U C2021 09 07.50401000 00 34.261-09 59 25.96 21.54GVEF080F52
K21RL6U* C2021 09 09.43608 23 59 08.528-10 02 18.29 21.9 wUEF080F51
K21RL6U C2021 09 09.45253 23 59 07.585-10 02 19.65 21.6 wUEF080F51
K21RL6U C2021 09 09.46374 23 59 06.963-10 02 20.46 21.6 wUEF080F51
K21RL6U C2021 09 09.47496 23 59 06.318-10 02 21.36 21.8 wUEF080F51
K21RL6U C2021 09 09.53812323 59 02.743-10 02 26.05 21.49GVEF080F51
K21RL6U C2021 09 09.53876923 59 02.707-10 02 26.13 21.81GVEF080F51
K21RL6U C2021 09 10.34875 23 58 26.968-10 03 26.86 21.7 wUEF080F51
K21RL6U C2021 09 10.35733 23 58 26.495-10 03 27.52 21.8 wUEF080F51
K21RL6U C2021 09 10.36591 23 58 26.011-10 03 28.39 21.6 wUEF080F51
K21RL6U C2021 09 10.37452 23 58 25.536-10 03 28.88 21.7 wUEF080F51
K21RL6U C2021 09 13.27285 23 56 05.94 -10 06 13.6 22.2 G EF080G96
K21RL6U C2021 09 13.28248 23 56 05.38 -10 06 14.5 21.9 G EF080G96
K21RL6U C2021 09 13.28726 23 56 05.09 -10 06 14.1 22.3 G EF080G96
K21RL6U C2021 09 28.40357423 44 29.934-09 47 34.70 22.36GVEF080F51
K21RL6U C2021 09 28.41468623 44 29.410-09 47 32.51 22.19GVEF080F51
K21RL6U C2021 09 28.42580723 44 28.890-09 47 30.10 21.95GVEF080F51
K21RL6U C2021 09 28.43691723 44 28.363-09 47 27.90 22.06GVEF080F51
K21RL6U C2021 10 03.30281423 41 48.326-09 28 28.01 22.01GVEF080F51
K21RL6U C2021 10 03.31399823 41 47.947-09 28 25.17 23.14GVEF080F51
K21RL6U C2021 10 03.32516823 41 47.496-09 28 21.94 22.16GVEF080F51
K21RL6U C2021 10 03.33636823 41 47.096-09 28 19.32 20.74GVEF080F51
K21RL6U C2021 10 05.34244423 40 55.019-09 18 37.36 22.32GVEF080F51
K21RL6U C2021 10 05.35391723 40 54.657-09 18 33.78 22.42GVEF080F51
K21RL6U C2021 10 05.36538023 40 54.277-09 18 30.13 22.81GVEF080F51
K21RL6U C2021 10 05.37681423 40 53.908-09 18 26.70 22.63GVEF080F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, H. Gao,
C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer H. Groeller. Measurers B. Gray, D. Rankin,
F. C. Shelly. 1.5-m reflector + 10K CCD.
Orbital elements:
2021 RU216 Earth MOID = 0.2693 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 276.03913 (2000.0) P Q
n 0.47504117 Peri. 252.06405 +0.69431136 +0.71880063
a 1.6267290 Node 61.96231 -0.64415280 +0.64266873
e 0.2125442 Incl. 2.30246 -0.32093443 +0.26514631
P 2.07 H 23.19 G 0.15 U 4
Residuals in seconds of arc
210713 F51 0.1+ 0.4+ 210905 F51 0.2+ 0.0 210913 G96 0.1- 0.2-
210713 F51 0.1- 0.2- 210905 F51 0.2- 0.2+ 210913 G96 0.1- 0.6-
210713 F51 0.0 0.0 210905 F51 0.1- 0.1+ 210913 G96 0.3- 0.0
210713 F51 0.0 0.2- 210907 F52 0.2- 0.1+ 210928 F51 0.1+ 0.1-
210803 F51 0.0 0.1- 210907 F52 0.0 0.2- 210928 F51 0.1+ 0.1-
210803 F51 0.2+ 0.1- 210907 F52 0.0 0.2+ 210928 F51 0.2+ 0.1+
210817 F51 0.1- 0.0 210907 F52 0.3- 0.1- 210928 F51 0.1+ 0.1+
210817 F51 0.3- 0.0 210909 F51 0.1+ 0.0 211003 F51 0.0 0.0
210817 F51 0.1+ 0.1- 210909 F51 0.1- 0.0 211003 F51 0.4+ 0.1-
210817 F51 0.0 0.1+ 210909 F51 0.2+ 0.1+ 211003 F51 0.3- 0.1+
210828 F51 0.0 0.2+ 210909 F51 0.1+ 0.1+ 211003 F51 0.1- 0.2-
210828 F51 0.0 0.2- 210909 F51 0.0 0.0 211005 F51 0.2- 0.2-
210828 F51 0.1+ 0.2+ 210909 F51 0.0 0.0 211005 F51 0.0 0.1-
210828 F51 0.1+ 0.0 210910 F51 0.0 0.1- 211005 F51 0.2- 0.1+
210830 F51 0.2+ 0.1+ 210910 F51 0.0 0.0 211005 F51 0.1- 0.0
210830 F51 0.1+ 0.0 210910 F51 0.1- 0.1-
210905 F51 0.1- 0.1+ 210910 F51 0.1+ 0.1+
Ephemeris:
2021 RU216 a,e,i = 1.63, 0.21, 2 q = 1.2810
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 19 15 50 05.6 -18 15 24 1.3511 1.6799 90.4 36.0 26.4
...
2023 03 06 16 21 08.1 -19 46 00 1.1727 1.6380 98.0 36.8 26.1
...
2023 03 14 16 37 18.9 -20 25 56 1.0809 1.6150 102.1 37.0 25.9
...
2023 03 20 16 49 11.0 -20 52 19 1.0140 1.5976 105.3 36.9 25.7
2023 03 21 16 51 08.0 -20 56 26 1.0030 1.5947 105.8 36.9 25.7
2023 03 22 16 53 04.4 -21 00 28 0.9921 1.5918 106.4 36.9 25.7
...
2023 03 28 17 04 30.9 -21 23 11 0.9277 1.5743 109.6 36.7 25.5
...
2023 04 05 17 19 08.9 -21 50 02 0.8452 1.5508 114.1 36.1 25.2
...
2023 04 20 17 44 01.0 -22 33 51 0.7022 1.5070 123.0 34.0 24.7
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-F80
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