[Iaude] MPEC O05: 2021 MC1 [a=2.11,e=0.79,i=11.7,H=20.08]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Tue Jul 16 10:16:01 EDT 2024
M.P.E.C. 2024-O05 Issued 2024 July 16, 14:14 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 MC1
Revision to MPEC 2021-M67
Additional Observations:
K21M01C C2024 06 02.57646520 07 44.198-20 53 25.23 22.07GVEO005F52
K21M01C C2024 06 02.58699520 07 44.034-20 53 22.52 23.43GVEO005F52
K21M01C C2024 06 07.50623020 06 17.241-20 34 05.86 22.75GVEO005F51
K21M01C C2024 06 11.53053320 04 09.717-20 17 45.79 22.66GVEO005F52
K21M01C C2024 06 11.54172820 04 09.249-20 17 42.74 22.40GVEO005F52
K21M01C C2024 06 11.55292620 04 08.783-20 17 39.77 22.71GVEO005F52
K21M01C C2024 06 15.53647620 01 05.296-20 00 39.68 21.77GVEO005F51
K21M01C C2024 06 15.54034020 01 05.069-20 00 38.84 21.59GVEO005F51
K21M01C C2024 06 15.54421020 01 04.852-20 00 37.69 21.83GVEO005F51
K21M01C C2024 06 15.54807820 01 04.623-20 00 36.70 21.50GVEO005F51
K21M01C 7C2024 07 14.97508018 53 34.610-16 17 17.91 19.2 GVEO005Z84
K21M01C 7C2024 07 14.97744318 53 33.994-16 17 16.19 VEO005Z84
K21M01C 7C2024 07 14.97978818 53 33.413-16 17 14.12 VEO005Z84
K21M01C 7C2024 07 14.98213418 53 32.824-16 17 12.00 VEO005Z84
K21M01C 7C2024 07 15.97221918 49 24.877-16 02 53.21 19.7 GVEO005Z84
K21M01C 7C2024 07 15.97929718 49 23.021-16 02 46.80 VEO005Z84
K21M01C 7C2024 07 15.98643618 49 21.160-16 02 40.36 VEO005Z84
K21M01C 7C2024 07 15.99353818 49 19.301-16 02 34.03 VEO005Z84
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
Z84 Calar Alto-Schmidt. Observers F. Ocana, R. Kresken, M. Micheli, L.
Conversi. Measurers F. Ocana, M. Micheli. 0.8-m f/3 Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240602 F52 0.40- 0.15- 240715 Z84 0.74- 0.37- E2024-GJ9 +0.00 days
Orbital elements:
2021 MC1 Earth MOID = 0.1052 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 299.68778 (2000.0) P Q
n 0.32126940 Peri. 137.35886 +0.53749828 -0.81904228
a 2.1113317 Node 279.17400 +0.70852682 +0.56767611
e 0.7918879 Incl. 11.72779 +0.45725852 +0.08314787
P 3.07 H 20.08 G 0.15 U 0
Residuals in seconds of arc
210611 G96 0.2+ 0.4- 210708 033 0.0 0.1+ 210720 F51 0.1- 0.1-
210611 G96 (0.9- 0.2-) 210708 033 0.0 0.2+ 210720 T05 0.1- 0.5+
210611 G96 (1.0- 0.1+) 210708 703 0.6+ 0.0 210720 T05 0.6- 0.0
210619 F51 0.1- 0.0 210708 703 1.6+ 0.1- 210720 B67 0.7- 0.5-
210619 F51 0.0 0.1+ 210708 703 0.4+ 0.0 210720 B67 0.5+ 0.4+
210619 F51 0.0 0.1+ 210712 A17 0.2- 0.1+ 210720 B67 0.5+ 0.2-
210620 807 0.2+ 0.1+ 210712 A17 0.1+ 0.1- 210721 K87 0.8+ 0.5+
210620 807 0.1+ 0.1+ 210712 A17 0.1- 0.0 210721 K87 0.5+ 0.5+
210620 807 0.1- 0.1- 210714 T08 0.2+ 0.3+ 210721 K87 0.6+ 0.2+
210621 807 0.1+ 0.1- 210714 T08 0.1+ 0.1- 240602 F52 0.2+ 0.4-
210621 807 0.0 0.2- 210714 T08 0.2- 0.5- 240602 F52 0.0 0.2-
210621 807 0.2+ 0.1- 210714 T08 0.4+ 0.1- 240607 F51 0.0 0.0
210630 I52 0.3+ 0.2- 210716 Z99 0.1- 0.1+ 240611 F52 0.1- 0.2-
210630 I52 0.5- 0.2+ 210716 Z99 0.3- 0.1+ 240611 F52 0.0 0.1+
210630 I52 0.5- 0.3- 210716 Z99 0.0 0.3+ 240611 F52 0.1+ 0.3+
210630 I52 0.1+ 0.1- 210716 Z99 0.2- 0.2+ 240615 F51 0.1- 0.1+
210703 033 0.4+ 0.4- 210718 K87 0.1+ 0.2- 240615 F51 0.1- 0.1-
210703 033 0.3+ 0.5- 210718 K87 0.7- 0.0 240615 F51 0.0 0.0
210703 033 0.1- 0.4- 210718 K87 0.6- 0.0 240615 F51 0.1- 0.0
210703 H36 0.7+ 0.0 210718 T08 0.6+ 0.9+ 240714 Z84 0.1+ 0.2+
210703 H36 0.2+ 0.5- 210718 T08 0.0 0.3+ 240714 Z84 0.2- 0.1-
210703 H36 0.2+ 0.4+ 210718 T08 0.2+ 0.3+ 240714 Z84 0.0 0.0
210703 H36 0.0 0.1- 210718 T08 0.2- 0.1- 240714 Z84 0.0 0.1+
210704 033 0.1+ 0.1- 210718 T08 0.3- 0.1+ 240715 Z84 0.0 0.1+
210704 033 0.2+ 0.2- 210719 K87 0.3+ 0.2+ 240715 Z84 0.1- 0.2+
210704 033 0.1- 0.1- 210719 K87 0.2- 0.0 240715 Z84 0.1- 0.3+
210704 033 0.0 0.0 210719 K87 0.3- 0.1- 240715 Z84 0.1- 0.3+
210708 033 0.2+ 0.2- 210720 T05 0.3- 0.5-
210708 033 0.1+ 0.1+ 210720 T05 (0.8- 0.7-)
Ephemeris:
2021 MC1 a,e,i = 2.11, 0.79, 12 q = 0.4394
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 06 16 20 00 40.0 -19 58 31 0.8928 1.8296 146.8 17.7 22.1
...
2024 07 01 19 37 31.7 -18 36 43 0.6591 1.6638 166.0 8.5 20.9
...
2024 07 09 19 15 32.6 -17 29 02 0.5548 1.5702 175.1 3.2 20.1
...
2024 07 15 18 53 28.6 -16 16 43 0.4880 1.4976 168.3 7.9 20.0
2024 07 16 18 49 18.0 -16 02 15 0.4779 1.4852 166.4 9.2 20.0
2024 07 17 18 44 58.6 -15 46 58 0.4681 1.4728 164.6 10.6 19.9
...
2024 07 23 18 16 01.5 -13 56 36 0.4160 1.3972 152.1 19.9 19.9
...
2024 07 31 17 30 12.0 -10 32 57 0.3649 1.2925 133.2 34.9 19.9
...
2024 08 15 15 53 16.4 -01 45 29 0.3238 1.0843 93.9 68.7 20.2
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-O05
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