MPEC 2023-U268 : 2023 UN9
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M.P.E.C. 2023-U268 Issued 2023 October 26, 14:29 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
2023 UN9
Observations:
K23U09N* S2023 10 21.61175 02 04 53.45 -71 32 49.0 19 RLEU268C51
K23U09N s2023 10 21.61175 1 + 1279.3111 + 139.3947 - 6689.1243 EU268C51
K23U09N S2023 10 21.67644 02 04 12.54 -71 28 31.7 LEU268C51
K23U09N s2023 10 21.67644 1 + 1279.5779 + 140.5437 - 6689.0358 EU268C51
K23U09N S2023 10 21.74113 02 03 31.77 -71 24 13.9 LEU268C51
K23U09N s2023 10 21.74113 1 + 1280.1908 + 141.4493 - 6688.8852 EU268C51
K23U09N S2023 10 21.80582 02 02 51.06 -71 19 55.1 LEU268C51
K23U09N s2023 10 21.80582 1 + 1280.5996 + 142.4989 - 6688.7675 EU268C51
K23U09N S2023 10 21.87050 02 02 10.78 -71 15 35.1 LEU268C51
K23U09N s2023 10 21.87050 1 + 1281.1059 + 143.4814 - 6688.6358 EU268C51
K23U09N S2023 10 21.93519 02 01 30.65 -71 11 14.1 LEU268C51
K23U09N s2023 10 21.93519 1 + 1281.6274 + 144.4542 - 6688.5016 EU268C51
K23U09N S2023 10 21.93532 02 01 30.86 -71 11 14.5 LEU268C51
K23U09N s2023 10 21.93532 1 + 1349.7309 + 96.8204 - 6675.9346 EU268C51
K23U09N S2023 10 22.00001 02 00 50.98 -71 06 52.3 LEU268C51
K23U09N s2023 10 22.00001 1 + 1350.4021 + 97.8008 - 6675.7671 EU268C51
K23U09N S2023 10 22.06470 02 00 11.57 -71 02 29.8 LEU268C51
K23U09N s2023 10 22.06470 1 + 1351.1467 + 98.7318 - 6675.5884 EU268C51
K23U09N S2023 10 22.19407 01 58 53.31 -70 53 42.0 LEU268C51
K23U09N s2023 10 22.19407 1 + 1352.8395 + 100.4568 - 6675.1896 EU268C51
K23U09N S2023 10 22.32345 01 57 36.16 -70 44 50.0 LEU268C51
K23U09N s2023 10 22.32345 1 + 1354.7938 + 102.0088 - 6674.7413 EU268C51
K23U09N S2023 10 22.38813 01 56 58.13 -70 40 23.3 LEU268C51
K23U09N s2023 10 22.38813 1 + 1355.9154 + 102.6883 - 6674.4862 EU268C51
K23U09N S2023 10 22.45282 01 56 20.13 -70 35 55.6 LEU268C51
K23U09N s2023 10 22.45282 1 + 1357.0622 + 103.3533 - 6674.2268 EU268C51
K23U09N S2023 10 22.51751 01 55 42.47 -70 31 26.2 LEU268C51
K23U09N s2023 10 22.51751 1 + 1358.3041 + 103.9562 - 6673.9518 EU268C51
K23U09N S2023 10 22.51764 01 55 42.50 -70 31 26.2 LEU268C51
K23U09N s2023 10 22.51764 1 + 1426.6505 + 56.9918 - 6660.2256 EU268C51
K23U09N S2023 10 22.58232 01 55 05.04 -70 26 56.2 LEU268C51
K23U09N s2023 10 22.58232 1 + 1428.0092 + 57.6267 - 6659.9125 EU268C51
K23U09N S2023 10 22.64701 01 54 27.81 -70 22 25.5 LEU268C51
K23U09N s2023 10 22.64701 1 + 1429.4174 + 58.2310 - 6659.5885 EU268C51
K23U09N S2023 10 22.77639 01 53 13.95 -70 13 22.3 LEU268C51
K23U09N s2023 10 22.77639 1 + 1432.4971 + 59.2709 - 6658.8881 EU268C51
K23U09N S2023 10 22.84107 01 52 37.56 -70 08 48.8 LEU268C51
K23U09N s2023 10 22.84107 1 + 1434.1236 + 59.7374 - 6658.5165 EU268C51
K23U09N S2023 10 22.90576 01 52 01.26 -70 04 15.0 19 RLEU268C51
K23U09N s2023 10 22.90576 1 + 1435.8480 + 60.1421 - 6658.1275 EU268C51
K23U09N C2023 10 25.01373301 34 24.58 -67 28 11.7 19.7 VWEU268X09
K23U09N C2023 10 25.01934401 34 21.79 -67 27 46.5 WEU268X09
K23U09N C2023 10 25.02495101 34 19.13 -67 27 21.8 WEU268X09
K23U09N C2023 10 25.15082001 33 18.93 -67 17 46.2 19.3 VWEU268X09
K23U09N C2023 10 25.15643001 33 16.20 -67 17 20.7 WEU268X09
K23U09N 0B2023 10 25.77465 01 28 53.15 -66 28 31.7 19.7 VZEU268M49
K23U09N 0B2023 10 25.78581 01 28 48.26 -66 27 39.9 19.9 VZEU268M49
K23U09N C2023 10 26.02270101 27 09.86 -66 08 41.2 WEU268X09
K23U09N C2023 10 26.02831201 27 07.57 -66 08 15.1 18.9 VWEU268X09
K23U09N C2023 10 26.36057501 24 45.10 -65 41 15.1 WEU268X09
K23U09N C2023 10 26.36618601 24 42.77 -65 40 46.7 WEU268X09
K23U09N C2023 10 26.37179301 24 40.44 -65 40 18.3 WEU268X09
Observer details:
C51 WISE. Observer Near-Earth Object Wide-field Infrared Survey Explorer.
Measurers A. K. Mainzer, J. M. Bauer, T. Grav, J. R. Masiero, R. M. Cutri,
J. W. Dailey, Y. G. Kwon, J. Pittichova, E. L. Wright.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.5 reflector + CMO.
X09 Deep Random Survey, Rio Hurtado. Observers A. Schnabel, D. Ruhela.
Measurer S. Deen. 0.43-m reflector + CMOS.
Orbital elements:
2023 UN9 Earth MOID = 0.1526 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Bell
M 68.81046 (2000.0) P Q
n 1.01812229 Peri. 191.83652 -0.24892018 +0.92546862
a 0.9785945 Node 64.31270 -0.86074521 -0.07621346
e 0.1736873 Incl. 18.47434 -0.44402301 -0.37107862
P 0.97 H 19.75 G 0.15 U 9
Residuals in seconds of arc
231021 C51 0.0 0.5- 231022 C51 0.3+ 0.2+ 231025 X09 0.0 0.9-
231021 C51 0.7+ 0.2- 231022 C51 0.1+ 0.1- 231025 X09 0.1+ 0.2-
231021 C51 0.8+ 0.3- 231022 C51 0.4+ 0.4+ 231025 X09 0.1- 0.7-
231021 C51 0.1- 0.3- 231022 C51 0.4+ 0.1+ 231025 M49 0.1- 0.1-
231021 C51 0.2- 0.0 231022 C51 0.4+ 0.4+ 231025 M49 0.1+ 0.2+
231021 C51 0.8- 0.3+ 231022 C51 0.3+ 0.4+ 231026 X09 0.8- 0.7-
231021 C51 0.1+ 0.4- 231022 C51 0.4- 0.3- 231026 X09 0.0 0.8-
231022 C51 0.6- 0.1+ 231022 C51 0.1+ 0.0 231026 X09 0.4+ 0.2-
231022 C51 0.3- 0.0 231022 C51 0.1- 0.3- 231026 X09 0.0 0.1-
231022 C51 0.6- 0.0 231025 X09 0.9+ 0.4- 231026 X09 0.4- 0.0
231022 C51 0.5- 0.5+ 231025 X09 0.0 0.4-
Ephemeris:
2023 UN9 a,e,i = 0.98, 0.17, 18 q = 0.8086
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 09 26 08 51 09.7 -72 42 24 0.2965 0.9845 77.9 84.9 20.1
...
2023 10 11 05 06 31.9 -78 33 19 0.2629 1.0278 88.9 76.3 19.6
...
2023 10 19 02 36 33.1 -74 11 40 0.2465 1.0491 95.5 70.9 19.3
...
2023 10 25 01 34 26.4 -67 29 10 0.2370 1.0640 100.6 66.7 19.1
2023 10 26 01 27 15.5 -66 10 23 0.2358 1.0664 101.4 66.0 19.1
2023 10 27 01 20 45.1 -64 48 52 0.2346 1.0688 102.3 65.3 19.1
...
2023 11 02 00 52 26.6 -55 53 20 0.2307 1.0823 106.9 61.3 18.9
...
2023 11 10 00 32 34.2 -42 45 31 0.2343 1.0986 111.6 57.0 18.9
...
2023 11 25 00 21 37.9 -19 09 16 0.2721 1.1233 113.4 53.8 19.1
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-U268
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