MPEC 2021-C253 : 2020 RR3
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M.P.E.C. 2021-C253 Issued 2021 February 12, 15:10 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. 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 2020 RR3 Revision to MPEC 2020-R125 Additional Observations: K20R03R C2014 03 25.53599813 43 27.833-21 57 16.93 21.25GVEC253F51 K20R03R C2014 03 25.54768613 43 25.846-21 57 38.57 21.12GVEC253F51 K20R03R C2014 03 25.56491313 43 22.879-21 58 10.34 20.62GVEC253F51 K20R03R C2014 03 27.46058113 38 09.552-22 56 19.91 20.78GVEC253F51 Observer details: F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A. Schultz, M. Willman. Measurers S. Chastel, 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 two decimals in degrees), reference and Delta-T 140325 F51 0.08- 0.05- 140327 F51 0.08- 0.05- E2020-V70 -0.00 days Orbital elements: 2020 RR3 Earth MOID = 0.2135 AU Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres M 353.36653 (2000.0) P Q n 0.68905421 Peri. 79.32435 +0.16184809 -0.98679393 a 1.2695032 Node 1.41208 +0.76913103 +0.12198262 e 0.1068209 Incl. 15.42043 +0.61825776 +0.10657383 P 1.43 H 22.1 G 0.15 U 2 Residuals in seconds of arc 140325 F51 0.1- 0.1- 200916 I52 0.4+ 0.1- 201007 F51 0.1- 0.1- 140325 F51 0.2+ 0.1- 200916 I52 0.1+ 0.1+ 201007 F51 0.1+ 0.0 140325 F51 0.0 0.0 200920 G96 0.0 0.0 201007 F51 0.1- 0.1- 140327 F51 0.1- 0.1+ 200920 G96 0.2- 0.0 201007 D29 0.3- 0.4- 200910 G96 0.2+ 0.1- 200920 G96 0.1+ 0.1- 201007 D29 0.2+ 0.1- 200910 G96 0.2+ 0.1+ 200920 G96 0.0 0.1+ 201009 I52 0.8+ 0.3+ 200910 G96 0.2+ 0.0 200920 246 0.2+ 0.5+ 201009 I52 0.5- 0.3+ 200910 G96 0.3+ 0.1- 200920 246 0.5- 0.5+ 201009 I52 0.2+ 1.4+ 200910 I52 0.0 1.3- 200920 246 0.6+ 0.0 201009 I52 0.1+ 0.5- 200910 I52 0.6- 0.3- 200920 246 0.1- 0.9- 201013 G58 0.1- 0.0 200910 I52 0.1- 0.2+ 200920 246 0.4- 1.3+ 201013 G58 0.1+ 0.4- 200910 I52 0.2- 0.0 200920 246 0.5- 1.3- 201013 G58 0.1+ 0.2- 200913 G96 0.0 0.3+ 200925 I52 0.4+ 0.2- 201013 G96 0.0 0.1- 200913 G96 0.2- 0.1- 200925 I52 0.1- 0.2- 201013 G96 0.0 0.1+ 200913 G96 0.2+ 0.1+ 200925 I52 0.4- 0.4- 201013 G96 0.1+ 0.3- 200913 F52 0.1- 0.1+ 200925 I52 0.1+ 0.2+ 201013 G96 0.1- 0.1- 200913 F52 0.1+ 0.0 200926 G96 0.1+ 0.1+ 201014 F52 0.2+ 0.2+ 200913 F52 0.0 0.2+ 200926 G96 0.2- 0.0 201014 F52 0.0 0.1- 200913 F52 0.0 0.0 200926 G96 0.2- 0.1+ 201014 F52 0.0 0.1- 200914 L01 0.3- 0.2+ 200926 G96 0.0 0.0 201023 F51 0.1- 0.2+ 200914 L01 0.4+ 0.2+ 200928 F51 0.0 0.0 201023 F51 0.1+ 0.0 200914 L01 0.3+ 0.4- 200928 F51 0.0 0.1+ 201023 F51 0.1+ 0.0 200914 I52 0.7- 0.5+ 200928 F51 0.0 0.0 201029 I52 0.3- 0.2- 200914 I52 0.5- 0.0 201006 I52 0.1- 0.5+ 201029 I52 0.1- 0.2- 200914 I52 0.1- 0.1+ 201006 I52 0.3- 0.1- 201104 I52 0.5+ 0.1+ 200915 I52 0.6- 0.1- 201006 I52 0.5- 0.1- 201104 I52 0.3- 0.7+ 200915 I52 1.0+ 0.5- 201006 I52 0.3- 0.3- 201104 I52 0.2+ 0.4- 200915 I52 0.9+ 1.1+ 201007 G96 0.0 0.1- 201108 204 0.3- 0.3- 200915 I52 0.4+ 0.3+ 201007 G96 0.0 0.2+ 201108 204 0.1- 0.3+ 200916 I52 0.2- 0.3- 201007 G96 0.1+ 0.3- 201123 V06 0.3+ 0.2- 200916 I52 0.1- 0.1+ 201007 G96 0.1+ 0.1- 201123 V06 0.3- 0.1- Ephemeris: 2020 RR3 a,e,i = 1.27, 0.11, 15 q = 1.1339 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2021 01 13 00 41 07.7 +51 57 13 0.4445 1.1376 98.5 58.8 22.7 ... 2021 01 28 01 54 14.1 +53 15 42 0.4693 1.1465 97.7 58.3 22.9 ... 2021 02 05 02 38 18.9 +53 04 44 0.4835 1.1532 97.5 58.0 22.9 ... 2021 02 11 03 12 27.7 +52 25 47 0.4953 1.1591 97.3 57.6 23.0 2021 02 12 03 18 10.6 +52 16 37 0.4974 1.1602 97.3 57.6 23.0 2021 02 13 03 23 53.3 +52 06 41 0.4995 1.1612 97.2 57.5 23.0 ... 2021 02 19 03 57 52.1 +50 51 09 0.5132 1.1680 97.0 57.1 23.1 ... 2021 02 27 04 41 26.8 +48 30 20 0.5343 1.1779 96.6 56.6 23.1 ... 2021 03 14 05 54 29.5 +42 28 51 0.5845 1.1987 95.3 55.7 23.3 A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-C253


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