MPEC 2023-S263 : 2017 TL4
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M.P.E.C. 2023-S263 Issued 2023 September 29, 15:05 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 2017 TL4 Revision to MPEC 2017-T87 Additional Observations: K17T04L 5C2015 04 18.20827 13 07 23.03 -10 04 26.3 23.1 VLES263W84 K17T04L 5C2015 04 18.21148 13 07 22.84 -10 04 15.7 LES263W84 K17T04L 5C2015 04 18.21473 13 07 22.66 -10 04 05.1 LES263W84 K17T04L 5C2015 04 18.21795 13 07 22.47 -10 03 54.3 LES263W84 K17T04L 5C2015 04 18.22122 13 07 22.28 -10 03 43.5 LES263W84 K17T04L ;C2015 04 19.15000 13 06 40.34 -09 13 42.0 22.1 VVES263W84 K17T04L ;C2015 04 19.16290 13 06 39.63 -09 13 01.4 23.1 VVES263W84 Observer details: W84 Cerro Tololo-DECam. Observers L. Allen, D. James. Measurers F. Valdes, P. VanWylen. 4.0-m CTIO reflector, 4.0-m reflector + CCD. First and last observations above in comparison with prediction: Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T 150418 W84 0.26+ 0.03+ 150419 W84 0.25+ 0.03+ MPO477899 -0.18 days Orbital elements: 2017 TL4 Earth MOID = 0.0350 AU Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres M 319.01348 (2000.0) P Q n 0.66740530 Peri. 249.51938 -0.11517566 -0.98580785 a 1.2968098 Node 207.96959 +0.98050465 -0.09311837 e 0.3219440 Incl. 15.09489 +0.15920178 -0.13968483 P 1.48 H 24.38 G 0.15 U 2 Residuals in seconds of arc 150418 W84 0.1+ 0.0 171013 G96 0.1- 0.0 171019 246 0.0 0.8- 150418 W84 0.0 0.0 171013 926 0.2+ 0.2- 171019 246 1.0+ 1.2+ 150418 W84 0.1+ 0.0 171013 926 0.3- 0.3+ 171019 246 0.0 0.3+ 150418 W84 0.1+ 0.1+ 171013 926 0.1- 0.4- 171019 246 0.8+ 0.1+ 150418 W84 0.1+ 0.2+ 171014 K88 0.5+ 0.4+ 171019 246 0.3+ 0.2- 150419 W84 0.0 0.2+ 171014 K88 0.6+ 0.4+ 171019 204 0.2- 0.0 150419 W84 0.0 0.1- 171014 K88 0.3- 0.0 171019 204 0.0 0.2+ 171011 G96 0.1+ 0.1- 171014 G96 0.1+ 0.3+ 171019 204 0.0 0.0 171011 G96 0.6- 0.3- 171014 G96 0.0 0.0 171020 I52 0.1- 0.1- 171011 G96 0.3+ 0.3- 171014 G96 0.0 0.2- 171020 I52 0.1- 0.0 171011 G96 0.0 0.0 171014 G96 0.1- 0.0 171020 I52 0.0 0.0 171011 H01 0.0 0.1- 171017 H21 0.4- 0.0 171020 I52 0.1- 0.0 171011 H01 0.0 0.1- 171017 H21 0.1+ 0.2+ 171021 703 0.9- 0.1- 171011 H01 0.1- 0.0 171017 H21 0.2- 0.2- 171021 703 1.0+ 0.8- 171011 H01 0.1- 0.1- 171018 F51 0.2- 0.3- 171021 703 0.1+ 0.6- 171011 G96 0.0 0.2+ 171018 F51 0.1+ 0.2- 171021 703 0.4+ 0.2- 171011 G96 0.3- 0.2- 171018 F51 0.1+ 0.0 171023 703 0.1+ 0.9+ 171011 G96 0.6- 0.2- 171018 246 0.6+ 0.1+ 171023 703 0.0 0.1- 171012 G96 0.1+ 0.1- 171018 246 0.4+ 0.0 171023 703 0.0 0.4+ 171012 G96 0.1+ 0.3- 171018 246 0.3+ 1.5+ 171023 703 0.3- 1.2+ 171012 G96 0.1- 0.0 171019 I52 0.0 0.1- 171023 F51 0.1- 0.1+ 171012 G96 0.3- 0.0 171019 I52 0.0 0.0 171027 474 0.1+ 0.2- 171013 G96 0.0 0.1+ 171019 I52 0.0 0.1- 171027 474 0.1- 0.3- 171013 G96 0.1+ 0.2+ 171019 I52 0.1+ 0.0 171027 474 0.0 0.4- 171013 G96 0.0 0.0 171019 246 0.6- 0.6- 171027 474 0.0 0.1- Ephemeris: 2017 TL4 a,e,i = 1.30, 0.32, 15 q = 0.8793 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2023 08 30 04 47 12.5 +29 29 07 0.6791 1.1361 82.0 61.7 26.0 ... 2023 09 14 06 12 55.5 +24 48 40 0.6126 1.0605 77.7 68.0 25.8 ... 2023 09 22 06 59 05.3 +20 37 14 0.5949 1.0222 74.6 71.3 25.8 ... 2023 09 28 07 32 46.3 +16 52 08 0.5908 0.9951 72.1 73.5 25.8 2023 09 29 07 38 16.4 +16 12 21 0.5908 0.9908 71.7 73.8 25.8 2023 09 30 07 43 44.3 +15 32 04 0.5911 0.9865 71.3 74.1 25.8 ... 2023 10 06 08 15 43.5 +11 22 29 0.5972 0.9618 68.8 75.8 25.8 ... 2023 10 14 08 56 05.6 +05 43 04 0.6165 0.9328 65.7 77.2 25.9 ... 2023 10 29 10 05 16.2 -04 07 48 0.6801 0.8937 61.2 77.0 26.0 A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-S263


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