MPEC 2023-O111 : 2021 NX
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M.P.E.C. 2023-O111 Issued 2023 July 29, 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 NX
Revision to MPEC 2021-N36
Additional Observations:
K21N00X C2017 07 05.56430722 18 28.653-11 13 57.42 23.05GVEO111F51
K21N00X C2017 07 05.59878122 18 40.376-11 13 42.75 23.08GVEO111F51
K21N00X C2017 08 06.60106201 30 22.346-06 17 38.21 21.85GVEO111F51
K21N00X C2019 06 30.46451320 49 13.941-14 57 58.13 22.15GVEO111F51
K21N00X C2019 06 30.47684720 49 17.071-14 58 01.09 22.54GVEO111F51
K21N00X C2019 06 30.48920020 49 20.283-14 58 04.22 23.13GVEO111F51
K21N00X C2019 06 30.50156920 49 23.460-14 58 07.44 21.45GVEO111F51
K21N00X C2019 07 04.50747521 09 03.736-15 14 58.48 21.92GVEO111F51
K21N00X C2019 07 04.51922221 09 07.077-15 15 01.56 21.95GVEO111F51
K21N00X C2019 07 04.54265621 09 13.806-15 15 07.91 22.03GVEO111F51
K21N00X C2023 07 09.49405419 54 02.460-20 43 33.04 20.99GVEO111F52
K21N00X C2023 07 09.50111819 54 03.867-20 43 42.93 21.25GVEO111F52
K21N00X C2023 07 09.50811119 54 05.242-20 43 52.27 21.57GVEO111F52
K21N00X C2023 07 09.51511319 54 06.584-20 44 01.68 22.56GVEO111F52
K21N00X C2023 07 27.43776421 33 34.266-28 52 49.54 21.01wXEO111F51
K21N00X C2023 07 27.44813421 33 38.467-28 53 05.49 21.11wXEO111F51
K21N00X C2023 07 27.45851521 33 42.636-28 53 21.41 21.36wXEO111F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, J.
Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, A. Schultz, I.
Smith. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, P. Minguez, 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 (or zero decimals in degrees), reference and Delta-T
170705 F51 19- 6- 230727 F51 32- 4- MPO750185 +2.61 days
Orbital elements:
2021 NX Earth MOID = 0.0771 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 14.33754 (2000.0) P Q
n 0.49231612 Peri. 215.22619 +0.79941296 +0.59783241
a 1.5884493 Node 107.95033 -0.53587312 +0.75428860
e 0.3184013 Incl. 3.58338 -0.27162274 +0.27137633
P 2.00 H 25.33 G 0.15 U 0
Residuals in seconds of arc
170705 F51 0.0 0.0 210705 F51 0.0 0.2+ 210910 F51 0.2+ 0.0
170705 F51 0.4+ 0.3- 210705 F51 0.1+ 0.3+ 210910 F51 0.1+ 0.1+
170806 F51 0.6- 0.5- 210706 568 0.0 0.1+ 210910 F51 0.1- 0.1-
190630 F51 0.1+ 0.0 210706 568 0.0 0.1+ 210910 F51 0.2+ 0.1+
190630 F51 0.5- 0.3+ 210706 568 0.0 0.1+ 210930 F52 0.3+ 0.3+
190630 F51 0.2+ 0.4+ 210707 F51 0.3- 0.1+ 210930 F52 0.1- 0.2-
190630 F51 0.4+ 0.2+ 210707 F51 0.1+ 0.1+ 210930 F52 0.2- 0.2-
190704 F51 0.3+ 0.1- 210707 F51 0.0 0.2+ 210930 F52 0.3- 0.2+
190704 F51 0.0 0.1+ 210707 F51 0.1- 0.0 210930 F51 0.1+ 0.1+
190704 F51 0.2+ 0.0 210731 F51 0.6+ 0.3+ 210930 F51 0.1+ 0.5-
210704 F51 0.1+ 0.1+ 210802 691 0.0 0.1- 230709 F52 0.3- 0.2-
210704 F51 0.5- 0.3- 210802 691 0.5+ 0.3- 230709 F52 0.2+ 0.4-
210704 F51 0.1+ 0.0 210802 691 0.4+ 0.0 230709 F52 0.3+ 0.2-
210704 F51 0.1- 0.2+ 210805 F51 0.6- 0.1- 230709 F52 0.0 0.2-
210704 F51 0.3+ 0.0 210805 F51 0.6- 0.2+ 230727 F51 0.1- 0.1-
210704 F51 0.3- 0.0 210805 F51 0.0 0.0 230727 F51 0.3+ 0.0
210705 F51 0.0 0.1- 210805 F51 0.0 0.0 230727 F51 0.2+ 0.1-
210705 F51 0.2+ 0.0 210810 F51 0.2- 0.0
210705 F51 0.3- 0.1+ 210810 F51 0.2- 0.1-
Ephemeris:
2021 NX a,e,i = 1.59, 0.32, 4 q = 1.0827
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 29 19 22 13.9 -17 26 28 0.1514 1.1642 166.3 11.9 22.3
...
2023 07 14 20 12 42.9 -22 35 50 0.1067 1.1219 170.3 8.8 21.3
...
2023 07 22 20 56 00.0 -26 23 54 0.09125 1.1050 166.5 12.4 21.1
...
2023 07 28 21 37 44.7 -29 05 02 0.08399 1.0953 161.1 17.5 21.1
2023 07 29 21 45 22.6 -29 27 54 0.08316 1.0939 160.0 18.5 21.1
2023 07 30 21 53 09.3 -29 49 07 0.08244 1.0927 159.0 19.5 21.1
...
2023 08 05 22 41 32.0 -31 14 04 0.08037 1.0865 152.6 25.4 21.2
...
2023 08 13 23 42 27.5 -31 04 21 0.08314 1.0828 145.4 32.1 21.5
...
2023 08 28 00 57 44.3 -26 58 54 0.1009 1.0896 140.0 36.6 22.0
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-O111
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