MPEC 2023-D04 : 2021 DN19
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M.P.E.C. 2023-D04 Issued 2023 February 16, 11:49 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 DN19 Additional Observations: K21D19N &C2016 01 08.26694007 48 28.94 +23 54 48.7 23.0 rWED004W84 K21D19N &C2018 02 09.21093307 54 30.83 +23 35 05.3 23.4 iWED004W84 K21D19N &C2019 03 02.11985207 57 27.15 +23 24 30.6 23.3 VWED004W84 K21D19N &C2019 03 02.12192407 57 27.13 +23 24 30.4 WED004W84 K21D19N &C2019 03 03.03763107 57 24.34 +23 24 36.1 23.8 gWED004W84 K21D19N &C2019 03 03.03940607 57 24.32 +23 24 35.7 WED004W84 K21D19N &C2020 02 26.08501508 01 52.04 +23 10 26.9 23.4 VWED004W84 K21D19N &C2020 02 26.09533108 01 52.01 +23 10 26.8 WED004W84 K21D19N &C2021 02 07.15464608 07 13.76 +22 53 28.1 23.2 iWED004W84 K21D19N &C2021 03 05.11156208 05 37.90 +22 57 16.3 23.1 iWED004W84 K21D19N &C2021 04 02.04613008 04 42.82 +22 58 29.2 22.6 iWED004W84 Observer details: W84 Cerro Tololo-DECam. Observers A. Zenteno, S. Juneau, E. M. Mueller, B. Blum. Measurer S. Deen. 4.0-m reflector + CCD. Orbital elements: 2021 DN19 Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Alexandersen M 242.78802 (2000.0) P Q n 0.00307088 Peri. 257.16294 -0.34814338 +0.93741260 a 46.8771068 Node 352.45105 -0.83697939 -0.31434884 e 0.1155731 Incl. 3.20076 -0.42221047 -0.14980796 P 321 H 6.46 G 0.15 U 6 Residuals in seconds of arc 160108 W84 0.0 0.1+ 190303 W84 0.1- 0.2- 210217 568 0.1+ 0.0 180209 W84 0.0 0.1- 200226 W84 0.0 0.1+ 210305 W84 0.3- 0.2+ 190302 W84 0.1+ 0.0 200226 W84 0.1+ 0.1- 210309 304 0.0 0.0 190302 W84 0.1- 0.2- 210207 W84 0.1- 0.0 210309 304 0.2+ 0.0 190303 W84 0.1+ 0.3+ 210217 568 0.0 0.0 210402 W84 0.0 0.1- Ephemeris: 2021 DN19 a,e,i = 46.88, 0.12, 3 q = 41.4594 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2023 01 17 08 17 13.7 +22 18 43 48.8405 49.8193 174.2 0.1 23.4 ... 2023 02 01 08 16 06.5 +22 22 10 48.8472 49.8159 169.4 0.2 23.4 ... 2023 02 09 08 15 31.8 +22 23 50 48.8789 49.8140 161.3 0.4 23.5 ... 2023 02 15 08 15 06.9 +22 24 59 48.9149 49.8127 155.1 0.5 23.5 2023 02 16 08 15 02.9 +22 25 10 48.9219 49.8124 154.1 0.5 23.5 2023 02 17 08 14 58.9 +22 25 21 48.9291 49.8122 153.1 0.5 23.5 ... 2023 02 23 08 14 35.9 +22 26 21 48.9784 49.8108 147.0 0.6 23.5 ... 2023 03 03 08 14 08.0 +22 27 30 49.0584 49.8090 138.8 0.8 23.5 ... 2023 03 18 08 13 26.3 +22 28 59 49.2462 49.8055 123.7 1.0 23.6 M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-D04


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