[Iaude] MPEC N32: 2021 NC8 [a=2.10,e=0.44,i=6.7,H=21.62]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Thu Jul 4 10:16:50 EDT 2024
M.P.E.C. 2024-N32 Issued 2024 July 4, 14:15 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 NC8
Revision to MPEC 2021-O05
Additional Observations:
K21N08C C2018 09 21.59865204 39 09.695+04 05 57.49 21.64GVEN032F52
K21N08C C2018 09 21.61025004 39 10.724+04 05 56.91 21.04GVEN032F52
K21N08C C2018 11 02.53249604 48 48.835+04 27 13.12 21.58GVEN032F52
K21N08C C2018 11 02.53461404 48 48.695+04 27 13.59 21.49GVEN032F52
K21N08C C2018 11 02.54527104 48 47.964+04 27 16.21 22.13GVEN032F52
K21N08C C2018 11 02.54738804 48 47.815+04 27 16.52 21.79GVEN032F52
K21N08C C2018 11 02.55800504 48 47.043+04 27 19.08 21.32GVEN032F52
K21N08C C2018 11 02.56012604 48 46.918+04 27 19.08 22.00GVEN032F52
K21N08C C2018 11 02.57072304 48 46.159+04 27 21.78 22.47GVEN032F52
K21N08C C2018 11 02.57284304 48 46.010+04 27 22.02 21.38GVEN032F52
K21N08C C2018 11 14.46050904 33 48.217+05 29 39.64 21.61GVEN032F52
K21N08C C2018 11 14.47364404 33 46.990+05 29 44.85 21.56GVEN032F52
K21N08C C2018 11 14.48678104 33 45.849+05 29 50.07 22.05GVEN032F52
K21N08C C2018 12 13.49934503 59 09.375+09 46 52.06 22.59GVEN032F51
K21N08C C2018 12 13.52258603 59 08.307+09 47 05.96 22.74GVEN032F51
K21N08C C2024 06 29.50292920 08 49.721-16 27 19.97 21.02GVEN032F52
K21N08C C2024 06 29.56717320 08 52.129-16 27 58.70 21.61GVEN032F52
K21N08C 0C2024 07 02.46774020 11 03.012-16 59 59.26 21.08GVEN032T12
K21N08C 0C2024 07 02.46937820 11 03.068-17 00 00.44 21.05GVEN032T12
K21N08C 0C2024 07 02.47114620 11 03.132-17 00 01.71 21.10GVEN032T12
K21N08C 0C2024 07 02.47315620 11 03.200-17 00 03.16 21.07GVEN032T12
K21N08C C2024 07 02.52295720 11 04.951-17 00 38.88 21.06wXEN032F52
K21N08C C2024 07 02.53618220 11 05.420-17 00 48.23 20.93wXEN032F52
K21N08C C2024 07 02.54935820 11 05.878-17 00 57.59 20.95wXEN032F52
K21N08C KC2024 07 03.57802820 11 51.319-17 13 08.33 20.9 GVEN032474
K21N08C KC2024 07 03.59104720 11 51.799-17 13 18.41 21.0 GVEN032474
K21N08C KC2024 07 03.59828420 11 52.061-17 13 23.99 20.6 GVEN032474
K21N08C KC2024 07 03.60552020 11 52.344-17 13 29.28 21.0 GVEN032474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 0.6-m f/6.3 Reflector + CCD.
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.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180921 F52 29.5+ 19.6+ 240703 474 69.9+ 7.7+ E2024-GH2 +0.00 days
Orbital elements:
2021 NC8 Earth MOID = 0.1950 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 305.92854 (2000.0) P Q
n 0.32438412 Peri. 232.99744 +0.96765692 +0.22851219
a 2.0977947 Node 113.57150 -0.17806559 +0.91879807
e 0.4382943 Incl. 6.69617 -0.17869735 +0.32185754
P 3.04 H 21.62 G 0.15 U 0
Residuals in seconds of arc
180921 F52 0.1- 0.1- 210806 F51 0.1+ 0.1- 211027 F52 0.1+ 0.1+
180921 F52 0.2- 0.2- 210806 F51 0.0 0.0 211031 G96 0.2- 0.4+
181102 F52 0.3- 0.0 210806 F51 0.0 0.0 211031 G96 0.1- 0.0
181102 F52 0.2- 0.0 210906 I41 0.2- 0.1- 211031 G96 0.3- 0.0
181102 F52 0.1+ 0.2+ 210906 I41 0.0 0.0 211031 G96 0.1+ 0.1+
181102 F52 0.1+ 0.0 210906 I41 0.2- 0.0 211031 F51 0.0 0.1+
181102 F52 0.3- 0.1+ 210906 I41 0.1+ 0.0 211031 F51 0.1- 0.1+
181102 F52 0.0 0.4- 210910 I41 0.2+ 0.0 211031 F51 0.0 0.1+
181102 F52 0.2- 0.1- 210910 I41 0.1- 0.1- 211031 F51 0.1+ 0.1+
181102 F52 0.2- 0.3- 210910 I41 0.1+ 0.1- 211106 F52 0.0 0.0
181114 F52 0.1- 0.1+ 210910 I41 0.2+ 0.2- 211106 F52 0.0 0.2+
181114 F52 0.6- 0.1+ 210913 G96 0.1- 0.2+ 211106 F52 0.1- 0.1-
181114 F52 0.1+ 0.1+ 210913 G96 0.2+ 0.4+ 211106 F52 0.1+ 0.1-
181213 F51 0.2+ 0.0 210913 G96 0.1+ 0.0 211111 G96 0.2- 0.4+
181213 F51 0.3+ 0.0 210913 G96 0.1+ 0.3- 211111 G96 0.8- 0.3+
210713 F51 0.1- 0.0 210918 F51 0.1- 0.0 211111 G96 0.9- 0.9+
210713 F51 0.2+ 0.1+ 210918 F51 0.1+ 0.0 211111 G96 0.1+ 0.2-
210713 F51 0.0 0.0 210918 F51 0.0 0.0 211111 F51 0.1- 0.1-
210714 568 0.0 0.0 211001 691 0.1- 0.1- 211111 F51 0.0 0.0
210714 568 0.0 0.0 211001 691 0.0 0.2- 211111 F51 0.0 0.0
210714 568 0.0 0.0 211001 691 0.0 0.2- 240629 F52 0.1- 0.1-
210715 807 0.5- 0.1+ 211014 G96 (1.2+ 0.2+) 240629 F52 0.1+ 0.0
210715 807 0.5- 0.5+ 211014 G96 0.0 0.2- 240702 T12 0.0 0.0
210715 807 0.1- 0.2+ 211014 G96 0.4+ 0.2- 240702 T12 0.0 0.0
210716 568 0.1- 0.2- 211014 G96 0.3+ 0.2- 240702 T12 0.0 0.0
210716 568 0.1- 0.0 211014 F51 0.1- 0.0 240702 T12 0.0 0.0
210716 568 0.1- 0.0 211014 F51 0.1- 0.0 240702 F52 0.0 0.0
210717 F51 0.1- 0.1+ 211014 F51 0.0 0.0 240702 F52 0.1+ 0.0
210717 F51 0.0 0.2+ 211027 807 0.2- 0.0 240702 F52 0.0 0.1-
210717 F51 0.0 0.0 211027 807 0.2- 0.3+ 240703 474 0.2- 0.1+
210803 691 0.1- 0.6+ 211027 807 0.2+ 0.4- 240703 474 0.0 0.2-
210803 691 1.2- 0.6- 211027 F52 0.2- 0.1- 240703 474 0.0 0.4-
210803 691 0.4- 0.1- 211027 F52 0.0 0.0 240703 474 0.3+ 0.2-
Ephemeris:
2021 NC8 a,e,i = 2.10, 0.44, 7 q = 1.1783
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 06 04 19 45 14.2 -14 27 58 0.6369 1.5452 137.5 26.3 22.8
...
2024 06 19 20 00 08.8 -15 07 46 0.4963 1.4622 148.4 21.3 22.0
...
2024 06 27 20 06 52.9 -16 03 20 0.4325 1.4198 154.8 17.8 21.5
...
2024 07 03 20 11 26.1 -17 06 09 0.3900 1.3892 159.8 14.7 21.1
2024 07 04 20 12 09.5 -17 18 38 0.3833 1.3842 160.6 14.1 21.0
2024 07 05 20 12 52.4 -17 31 44 0.3768 1.3792 161.5 13.5 21.0
...
2024 07 11 20 17 03.5 -19 03 37 0.3405 1.3502 166.7 10.0 20.6
...
2024 07 19 20 22 42.6 -21 43 16 0.2994 1.3140 173.3 5.2 20.0
...
2024 08 03 20 36 17.2 -28 29 00 0.2443 1.2550 168.4 9.4 19.7
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-N32
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