MPEC 2021-D23 : 2021 DE
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M.P.E.C. 2021-D23 Issued 2021 February 18, 09:41 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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 DE
Observations:
K21D00E* C2021 02 16.51723711 32 06.956+06 38 44.93 21.46wUED023F52
K21D00E C2021 02 16.52963411 32 05.949+06 38 47.40 21.31wUED023F52
K21D00E C2021 02 16.54204411 32 04.937+06 38 49.63 21.55wUED023F52
K21D00E C2021 02 16.55436811 32 03.949+06 38 51.60 21.85wUED023F52
K21D00E ^C2021 02 17.40056411 31 09.140+06 41 51.21 21.10GVED023568
K21D00E ^C2021 02 17.40154611 31 09.052+06 41 51.45 21.05GVED023568
K21D00E KC2021 02 17.48949 11 30 58.26 +06 42 01.4 21.1 RoED023691
K21D00E KC2021 02 17.50127 11 30 57.23 +06 42 03.9 20.6 RoED023691
K21D00E KC2021 02 17.51306 11 30 56.14 +06 42 06.5 21.5 RoED023691
K21D00E 1C2021 02 18.11695 11 30 07.17 +06 44 28.4 21.6 VVED023033
K21D00E 1C2021 02 18.12054 11 30 06.78 +06 44 29.0 21.6 VVED023033
K21D00E 1C2021 02 18.12413 11 30 06.43 +06 44 30.0 21.9 VVED023033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
568 Mauna Kea. Observers R. Wainscoat, L. Wells, T. Burdullis, Y.
Ramanjooloo. Measurers R. Weryk, Y. Ramanjooloo, R. Wainscoat. 3.6-m
Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer J. V. Scotti. 0.9-m
f/3 reflector + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Dukes, T. Lowe, A.
Schultz, M. Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L.
Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
Orbital elements:
2021 DE Earth MOID = 0.0023 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 285.62050 (2000.0) P Q
n 0.62255676 Peri. 303.88656 +0.19593384 +0.98011873
a 1.3583658 Node 337.35108 -0.87076554 +0.15923588
e 0.7501676 Incl. 4.65630 -0.45097373 +0.11836900
P 1.58 H 24.26 G 0.15 U 9
Residuals in seconds of arc
210216 F52 0.1- 0.0+ 210216 F52 0.2+ 0.2- 210217 691 0.0- 0.2-
210216 F52 0.1- 0.0+ 210216 F52 0.1+ 0.2- 210217 691 0.2- 0.1-
210216 F52 0.1- 0.2+ 210217 568 0.0- 0.0+ 210218 033 0.2+ 0.6+
210216 F52 0.1- 0.2+ 210217 568 0.0- 0.0+ 210218 033 0.1- 0.2+
210216 F52 0.1- 0.1+ 210217 568 0.0+ 0.0- 210218 033 0.2+ 0.3+
210216 F52 0.1- 0.1+ 210217 691 0.8- 0.2-
Ephemeris:
2021 DE a,e,i = 1.36, 0.75, 5 q = 0.3394
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 19 11 27 47.1 +07 14 37 0.6414 1.4744 129.0 31.2 25.5
...
2021 02 03 11 34 54.7 +06 35 18 0.3864 1.3128 142.3 27.3 24.0
...
2021 02 11 11 35 13.2 +06 30 08 0.2584 1.2181 150.3 23.7 22.9
...
2021 02 17 11 31 35.9 +06 40 35 0.1659 1.1429 157.2 19.6 21.6
2021 02 18 11 30 18.7 +06 44 37 0.1508 1.1300 158.5 18.7 21.4
2021 02 19 11 28 40.8 +06 49 46 0.1357 1.1169 159.9 17.7 21.1
...
2021 02 25 10 54 29.2 +08 32 58 0.04678 1.0364 174.5 5.3 18.1
...
2021 03 05 00 19 44.8 -03 58 13 0.07393 0.9224 19.4 159.1 29.1
...
2021 03 20 23 52 37.8 -05 15 57 0.3098 0.6878 5.1 172.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-D23
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