MPEC 2023-J54 : 2021 DM2
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2023-J53
Read MPEC 2023-J55
M.P.E.C. 2023-J54 Issued 2023 May 8, 14:05 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 DM2
Revision to MPEC 2021-D106
Additional Observations:
K21D02M C2009 06 09.49025318 04 35.665+36 51 55.89 22.44GVEJ054F51
K21D02M C2009 06 09.50139218 04 34.751+36 52 06.18 21.83GVEJ054F51
K21D02M C2021 04 02.30487911 52 03.309+29 28 02.01 22.08GVEJ054F51
K21D02M C2021 04 02.31583211 52 02.337+29 28 11.62 22.62GVEJ054F51
K21D02M C2021 04 16.27295811 36 12.728+31 37 56.59 22.92GVEJ054F51
K21D02M C2021 04 16.28416811 36 12.145+31 37 59.77 22.97GVEJ054F51
K21D02M C2021 04 16.29533511 36 11.540+31 38 02.94 22.47GVEJ054F51
K21D02M C2021 04 16.30661011 36 10.950+31 38 05.83 22.29GVEJ054F51
K21D02M KC2023 05 02.58955521 26 15.799+07 59 27.39 22.87GVEJ054F52
K21D02M DC2023 05 07.42467 21 42 48.20 +09 00 32.9 23.0 GVEJ054695
K21D02M DC2023 05 07.45536 21 42 54.54 +09 00 56.2 VEJ054695
Observer details:
695 Kitt Peak. Observer C. Lejoly. 2.3-m f/9 reflector + CCD.
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. 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
090609 F51 43.0+ 5.0+ 230507 695 9.9+ 1.7+ MPO650441 +0.02 days
Orbital elements:
2021 DM2 PHA, Earth MOID = 0.0054 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 251.36626 (2000.0) P Q
n 0.64082002 Peri. 221.51791 +0.95833942 -0.21482128
a 1.3324329 Node 149.31102 +0.23275131 +0.96934518
e 0.2869797 Incl. 21.64415 -0.16556685 +0.11925491
P 1.54 H 20.91 G 0.15 U 1
Residuals in seconds of arc
090609 F51 0.1+ 0.1- 210302 G37 0.1+ 0.1+ 210402 H21 0.2+ 0.2-
090609 F51 0.1- 0.1+ 210303 291 0.3+ 0.1- 210402 H21 0.1- 0.2+
210222 F51 0.2+ 0.4+ 210303 291 0.1- 0.2- 210402 F51 0.0 0.3+
210222 F51 0.1- 0.2- 210303 291 0.1+ 0.4- 210402 F51 0.0 0.0
210222 F51 0.1- 0.2+ 210306 291 0.4- 0.1+ 210403 291 0.4- 0.7-
210223 807 0.0 0.2- 210306 291 1.1- 0.1- 210403 291 0.0 0.2-
210223 807 0.1+ 0.1- 210310 291 0.7- 0.5+ 210403 291 0.1- 0.3-
210223 807 0.2+ 0.1- 210310 291 0.1+ 0.3- 210410 291 0.3- 0.2+
210223 695 0.2+ 0.1+ 210310 291 0.1+ 0.4- 210410 291 0.2+ 0.1-
210223 695 0.1+ 0.1+ 210318 691 0.2- 0.2- 210416 F51 0.3- 0.1-
210223 695 0.2+ 0.3+ 210318 691 0.2- 0.2+ 210416 F51 0.1- 0.0
210224 695 0.2- 0.0 210318 691 0.3- 0.1- 210416 F51 0.1- 0.1+
210224 695 0.1+ 0.0 210323 V00 0.3- 0.2+ 210416 F51 0.1+ 0.0
210224 695 0.1+ 0.2- 210323 V00 0.2+ 0.2- 210812 T14 0.0 0.0
210225 695 0.3+ 0.2+ 210323 V00 0.5+ 0.0 230502 F52 0.1+ 0.0
210225 695 0.4+ 0.3- 210323 V00 0.1- 0.1+ 230507 695 0.1+ 0.1-
210302 G37 0.5- 0.5- 210402 H21 0.0 0.2+ 230507 695 0.1- 0.1-
Ephemeris:
2021 DM2 a,e,i = 1.33, 0.29, 22 q = 0.9501
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 04 08 20 09 00.3 +02 51 01 1.2785 1.3857 73.7 43.9 23.8
...
2023 04 23 20 54 57.1 +05 56 56 1.1487 1.3227 75.4 47.4 23.6
...
2023 05 01 21 20 56.2 +07 39 13 1.0835 1.2879 75.9 49.4 23.5
...
2023 05 07 21 41 19.1 +08 55 17 1.0368 1.2614 76.1 50.9 23.4
2023 05 08 21 44 48.0 +09 07 48 1.0293 1.2570 76.1 51.2 23.4
2023 05 09 21 48 18.5 +09 20 16 1.0218 1.2525 76.1 51.5 23.3
...
2023 05 15 22 09 56.3 +10 33 27 0.9780 1.2258 76.1 53.2 23.3
...
2023 05 23 22 40 28.9 +12 04 24 0.9234 1.1901 75.7 55.5 23.1
...
2023 06 07 23 43 55.8 +14 18 42 0.8363 1.1246 74.1 60.2 22.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-J54
Read MPEC 2023-J53
Read MPEC 2023-J55
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)