MPEC 2023-S176 : 2023 SS4
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M.P.E.C. 2023-S176 Issued 2023 September 23, 14:31 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 SS4 Observations: K23S04S* C2023 09 20.47607201 12 07.387+18 15 40.61 21.69GVES176V00 K23S04S C2023 09 20.48098001 12 05.728+18 16 07.36 21.26GVES176V00 K23S04S C2023 09 20.48587301 12 04.093+18 16 33.56 21.27GVES176V00 K23S04S C2023 09 20.49076101 12 02.444+18 17 00.49 22.02GVES176V00 K23S04S mC2023 09 20.50959601 11 56.281+18 18 41.36 21.74GVES176V00 K23S04S mC2023 09 20.51055401 11 55.964+18 18 46.19 21.47GVES176V00 K23S04S mC2023 09 20.51151401 11 55.648+18 18 51.55 21.52GVES176V00 K23S04S mC2023 09 20.51247301 11 55.338+18 18 56.66 22.08GVES176V00 K23S04S KC2023 09 21.23239 01 09 01.31 +19 19 45.8 22.0 RoES176291 K23S04S KC2023 09 21.24269 01 08 58.36 +19 20 35.4 21.5 RoES176291 K23S04S KC2023 09 21.25303 01 08 55.38 +19 21 24.2 21.4 RoES176291 K23S04S KC2023 09 22.29188301 05 03.62 +20 30 53.7 22.0 VuES176H21 K23S04S KC2023 09 22.30071801 05 01.46 +20 31 24.5 21.9 VuES176H21 K23S04S KC2023 09 22.30625701 05 00.09 +20 31 44.0 22.2 VuES176H21 K23S04S KC2023 09 23.35541 01 01 54.43 +21 26 50.7 22.3 RoES176291 K23S04S KC2023 09 23.36506 01 01 52.41 +21 27 17.2 21.8 RoES176291 K23S04S KC2023 09 23.37475 01 01 50.38 +21 27 43.7 22.5 RoES176291 Observer details: 291 LPL/Spacewatch II. Observers J. V. Scotti, M. T. Read. 1.8-m f/2.7 reflector + CCD. H21 Astronomical Research Observatory, Westfield. Observer R. Holmes. Measurers T. Linder, R. Holmes, L. Horn. 1.3-m f/4.0 astrograph + CCD. V00 Kitt Peak-Bok. Observer H. Groeller. Measurers M. J. Brucker, C. E. Woodward, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, C. Lejoly, G. J. Leonard, R. A. Mastaler, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 2.25-m reflector + 4x4K mosaic CCD. Orbital elements: 2023 SS4 Earth MOID = 0.0112 AU Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres M 9.92536 (2000.0) P Q n 0.32571034 Peri. 315.18215 +0.64313631 +0.76565016 a 2.0920963 Node 354.79849 -0.65834021 +0.54453261 e 0.5585539 Incl. 7.90669 -0.39110595 +0.34243842 P 3.03 H 27.03 G 0.15 U 8 Residuals in seconds of arc 230920 V00 0.3+ 0.4- 230920 V00 0.2- 0.2- 230922 H21 0.3+ 0.8- 230920 V00 0.1+ 0.2- 230920 V00 0.2- 0.2- 230922 H21 0.0 0.7- 230920 V00 0.2+ 0.5- 230921 291 0.1- 0.6+ 230923 291 0.1- 0.2+ 230920 V00 0.2- 0.0 230921 291 0.1- 1.0+ 230923 291 0.1- 0.1+ 230920 V00 0.0 0.1- 230921 291 0.0 0.6+ 230923 291 0.1- 0.0 230920 V00 0.1- 0.4- 230922 H21 0.3+ 0.4- Ephemeris: 2023 SS4 a,e,i = 2.09, 0.56, 8 q = 0.9235 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2023 08 24 12 17 38.6 -32 10 50 0.1402 0.9341 53.3 119.8 27.4 ... 2023 09 08 11 32 51.6 -43 28 57 0.03864 0.9833 49.9 128.4 25.5 ... 2023 09 16 01 58 20.5 +01 21 22 0.02178 1.0232 143.3 35.9 20.2 ... 2023 09 22 01 06 02.7 +20 13 49 0.06041 1.0580 152.7 25.8 22.2 2023 09 23 01 02 54.1 +21 10 04 0.06721 1.0642 153.3 25.0 22.5 2023 09 24 01 00 16.2 +21 55 02 0.07406 1.0704 153.9 24.3 22.7 ... 2023 09 30 00 50 22.9 +24 17 22 0.1161 1.1097 157.2 20.5 23.6 ... 2023 10 08 00 43 59.9 +25 04 47 0.1751 1.1659 160.4 16.7 24.5 ... 2023 10 23 00 40 41.0 +24 25 12 0.2991 1.2792 159.2 16.0 25.8 M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-S176


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