MPEC 2020-S55 : 2020 SB
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M.P.E.C. 2020-S55 Issued 2020 September 18, 02:23 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 SB Observations: K20S00B* C2020 09 16.10412 15 04 41.92 +64 32 56.7 19.9 GVES055703 K20S00B C2020 09 16.10954 15 04 47.61 +64 32 30.6 19.1 GVES055703 K20S00B C2020 09 16.12037 15 04 58.73 +64 31 40.9 18.4 GVES055703 K20S00B C2020 09 16.14069 15 05 19.71 +64 30 05.6 18.3 GVES055I52 K20S00B C2020 09 16.14126 15 05 20.30 +64 30 03.1 18.4 GVES055I52 K20S00B C2020 09 16.14183 15 05 20.88 +64 30 00.2 18.4 GVES055I52 K20S00B C2020 09 16.14240 15 05 21.45 +64 29 57.6 18.5 GVES055I52 K20S00B C2020 09 16.23884715 07 03.96 +64 23 26.7 18.77cVES055T05 K20S00B C2020 09 16.24431815 07 09.45 +64 23 01.3 18.80cVES055T05 K20S00B C2020 09 16.25766315 07 23.03 +64 21 57.2 18.66cVES055T05 K20S00B C2020 09 16.26181415 07 27.31 +64 21 37.3 18.50cVES055T05 K20S00B KC2020 09 16.79695 15 16 41.16 +63 41 29.8 VES055204 K20S00B KC2020 09 16.80159 15 16 45.71 +63 41 06.8 VES055204 K20S00B KC2020 09 16.80236515 16 46.41 +63 41 08.1 18.6 GVES055C95 K20S00B KC2020 09 16.80623 15 16 50.19 +63 40 44.0 18.7 GVES055204 K20S00B KC2020 09 16.81375115 16 57.40 +63 40 11.6 18.8 GVES055C95 K20S00B KC2020 09 16.81827 15 17 01.70 +63 39 39.7 18.9 GVES055595 K20S00B KC2020 09 16.82499115 17 08.41 +63 39 15.7 18.9 GVES055C95 K20S00B KC2020 09 16.82722515 17 10.26 +63 38 59.1 18.7 GVES055104 K20S00B KC2020 09 16.82727 15 17 11.13 +63 39 12.6 19.2 GVES055958 K20S00B KC2020 09 16.83452 15 17 18.11 +63 38 36.2 19.0 GVES055958 K20S00B KC2020 09 16.84177 15 17 25.15 +63 37 59.8 19.1 GVES055958 K20S00B KC2020 09 16.84207815 17 24.86 +63 37 45.0 18.4 GVES055104 K20S00B KC2020 09 16.84216 15 17 25.30 +63 37 41.1 18.9 GVES055595 K20S00B KC2020 09 16.85396615 17 36.64 +63 36 45.8 18.2 GVES055104 K20S00B KC2020 09 16.85417215 17 37.25 +63 36 46.3 18.2 GVES055K38 K20S00B KC2020 09 16.85740 15 17 40.70 +63 36 13.8 18.2 VVES055L04 K20S00B KC2020 09 16.86212515 17 45.07 +63 36 06.4 18.2 GVES055K38 K20S00B KC2020 09 16.86581115 17 48.76 +63 35 59.0 18.3 GVES055I93 K20S00B KC2020 09 16.86737 15 17 50.70 +63 35 24.6 18.4 VVES055L04 K20S00B KC2020 09 16.87007515 17 52.94 +63 35 27.1 18.1 GVES055K38 K20S00B KC2020 09 16.87491615 17 57.69 +63 35 13.3 18.2 GVES055I93 K20S00B KC2020 09 16.87622 15 17 59.50 +63 34 40.9 18.3 VVES055L04 K20S00B KC2020 09 16.87802515 18 00.82 +63 34 47.2 18.3 GVES055K38 K20S00B KC2020 09 16.88411715 18 06.73 +63 34 27.5 18.2 GVES055I93 K20S00B KC2020 09 16.94114115 19 04.02 +63 29 30.8 18.4 GVES055K63 K20S00B KC2020 09 16.94214115 19 05.06 +63 29 25.5 18.9 GVES055K63 K20S00B KC2020 09 17.07672 15 21 16.73 +63 20 03.8 18.3 GVES055H36 K20S00B KC2020 09 17.07873 15 21 18.62 +63 19 53.4 18.4 GVES055H36 K20S00B KC2020 09 17.08286 15 21 22.50 +63 19 32.5 18.1 GVES055H36 K20S00B KC2020 09 17.08621 15 21 25.52 +63 19 33.1 oES055711 K20S00B KC2020 09 17.08883 15 21 27.91 +63 19 19.6 oES055711 K20S00B KC2020 09 17.09139 15 21 30.27 +63 19 07.0 oES055711 K20S00B C2020 09 17.09996 15 21 39.30 +63 18 28.5 18.1 GVES055I52 K20S00B C2020 09 17.10035 15 21 39.64 +63 18 26.6 18.0 GVES055I52 K20S00B C2020 09 17.10074 15 21 40.05 +63 18 24.7 17.9 GVES055I52 K20S00B C2020 09 17.10113 15 21 40.35 +63 18 22.3 18.0 GVES055I52 K20S00B KC2020 09 17.77072215 32 09.12 +62 24 07.8 18.5 GVES055L01 K20S00B KC2020 09 17.77331715 32 11.37 +62 23 54.1 18.5 GVES055L01 K20S00B KC2020 09 17.77591315 32 13.64 +62 23 40.4 18.5 GVES055L01 K20S00B KC2020 09 17.77721015 32 14.76 +62 23 33.6 18.5 GVES055L01 K20S00B KC2020 09 17.77958915 32 16.84 +62 23 21.0 18.5 GVES055L01 K20S00B KC2020 09 17.78351 15 32 21.31 +62 22 59.6 18.2 GVES055A17 K20S00B KC2020 09 17.78491 15 32 22.52 +62 22 51.8 17.5 GVES055K87 K20S00B KC2020 09 17.78715 15 32 24.50 +62 22 40.7 18.7 GVES055A17 K20S00B KC2020 09 17.78861 15 32 25.70 +62 22 31.9 18.4 GVES055K87 K20S00B KC2020 09 17.79231 15 32 28.96 +62 22 12.3 18.1 GVES055K87 K20S00B KC2020 09 17.79237 15 32 29.04 +62 22 13.2 18.3 GVES055A17 K20S00B KC2020 09 17.79601 15 32 32.17 +62 21 52.3 18.6 GVES055K87 K20S00B KC2020 09 17.79655 15 32 32.70 +62 21 51.3 18.3 GVES055A17 K20S00B KC2020 09 17.79969 15 32 35.44 +62 21 33.0 18.6 GVES055K87 K20S00B KC2020 09 17.80339 15 32 38.62 +62 21 14.0 18.5 GVES055K87 K20S00B KC2020 09 17.81023615 32 45.75 +62 20 45.5 18.5 GVES055J95 K20S00B KC2020 09 17.81172015 32 47.03 +62 20 37.6 18.3 GVES055J95 K20S00B KC2020 09 17.81348015 32 48.57 +62 20 28.5 18.7 GVES055J95 K20S00B KC2020 09 17.81658415 32 51.29 +62 20 12.0 18.6 GVES055J95 K20S00B KC2020 09 17.83157815 33 04.60 +62 18 50.2 18.6 GVES055Z99 K20S00B KC2020 09 17.83427915 33 06.99 +62 18 35.8 18.7 GVES055Z99 K20S00B KC2020 09 17.83696515 33 09.35 +62 18 21.6 18.6 GVES055Z99 K20S00B KC2020 09 17.83965615 33 11.70 +62 18 07.5 18.7 GVES055Z99 K20S00B KC2020 09 17.84235015 33 14.01 +62 17 53.1 18.9 GVES055Z99 K20S00B KC2020 09 17.87695615 33 42.94 +62 14 46.9 18.4 GVES055203 K20S00B KC2020 09 17.88570615 33 50.79 +62 14 00.0 18.3 GVES055203 K20S00B KC2020 09 17.94563715 34 45.41 +62 08 45.3 19.3 GVES055Z80 K20S00B KC2020 09 17.94945315 34 48.85 +62 08 26.5 18.3 GVES055J69 K20S00B KC2020 09 17.95269715 34 51.77 +62 08 07.5 19.4 GVES055Z80 K20S00B KC2020 09 17.95455615 34 53.41 +62 07 59.1 18.3 GVES055J69 K20S00B KC2020 09 17.95965215 34 57.89 +62 07 32.5 18.3 GVES055J69 K20S00B KC2020 09 17.96426715 35 02.26 +62 07 07.2 19.1 GVES055Z80 K20S00B KC2020 09 17.96474015 35 02.58 +62 07 04.6 18.4 GVES055J69 K20S00B KC2020 09 17.96927115 35 06.87 +62 06 40.5 18.2 GVES055Z80 K20S00B KC2020 09 17.97401615 35 11.11 +62 06 14.8 18.6 GVES055Z80 K20S00B KC2020 09 18.05708115 36 23.39 +62 00 21.9 18.9 VuES055H21 K20S00B KC2020 09 18.05896 15 36 25.82 +62 00 18.6 18.7 GVES055H36 K20S00B KC2020 09 18.05937715 36 25.33 +62 00 09.2 19.7 VuES055H21 K20S00B KC2020 09 18.06327515 36 28.60 +61 59 48.5 19.0 VuES055H21 K20S00B KC2020 09 18.06571 15 36 31.43 +61 59 43.0 18.9 GVES055H36 K20S00B KC2020 09 18.06831315 36 32.87 +61 59 21.2 18.5 VuES055H21 K20S00B KC2020 09 18.07015015 36 34.40 +61 59 11.4 18.8 VuES055H21 K20S00B KC2020 09 18.07095 15 36 35.79 +61 59 14.8 19.0 GVES055H36 Observer details: 104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri, M. D. Grazia. Measurers P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD. 203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli. 0.36-m f/5.76 Schmidt-Cassegrain + CCD. 204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector + CCD. 595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD. 703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 0.68-m Schmidt + 10K CCD. 711 McDonald Observatory, Fort Davis. Observers J. W. Kuehne, J. G. Ries. Measurer J. G. Ries. 2.1-m reflector + CCD + focal reducer. 958 Observatoire de Dax. Observer P. Dupouy. 0.32-m f/4.1 Schmidt- Cassegrain. A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert. 0.36-m f/6 Schmidt-Cassegrain + CCD. C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m f/3.2 Newtonian reflector + CCD. H21 Astronomical Research Observatory, Westfield. Observer R. Holmes. Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0 astrograph + CCD. H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD. I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector + CCD. I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD. J69 North Observatory, Clanfield. Observer D. Briggs. 0.41-m f/4.5 Newtonian reflector + CCD. J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain + CCD. K38 M57 Observatory, Saltrio. Observer G. Baj. 0.3-m f/5.5 Ritchey-Chretien + CCD. K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.4-m f/3.2 Newtonian reflector + CCD. K87 Dettelbach Vineyard Observatory. Observer B. Haeusler. 0.3-m f/5.7 Schmidt-Cassegrain + CCD. L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector + CCD. L04 ROASTERR-1 Observatory, Cluj-Napoca. Observer L. Hudin. 0.3-m f/5 reflector + CCD. T05 ATLAS-HKO, Haleakala. Observers L. Denneau, J. Tonry, A. Heinze, H. Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, H. Flewelling, A. Fitzsimmons, J. Robinson, N. Erasmus. 0.5-m reflector + CCD. Z80 Northolt Branch Observatory. Observer G. Wells. Measurer D. Bamberger. 0.25-m f/8.0 Ritchey-Chretien + CCD. Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8 Schmidt-Cassegrain + CCD. Orbital elements: 2020 SB Earth MOID = 0.0890 AU Epoch 2020 May 31.0 TT = JDT 2459000.5 Alexandersen M 350.38392 (2000.0) P Q n 1.59522819 Peri. 249.60717 -0.99474272 +0.04372335 a 0.7254166 Node 292.80561 +0.00051599 -0.90211799 e 0.3619030 Incl. 5.76540 -0.10240439 -0.42926844 P 0.62 H 20.3 G 0.15 U 8 Residuals in seconds of arc 200916 703 0.0 0.1+ 200916 K38 0.2- 0.2+ 200917 K87 0.5+ 0.3- 200916 703 0.8+ 0.8- 200916 I93 0.2+ 0.1+ 200917 K87 0.1+ 0.2+ 200916 703 0.5+ 0.0 200916 L04 0.7- 0.2+ 200917 J95 0.2- 0.1+ 200916 I52 0.1- 0.0 200916 K38 0.3- 0.0 200917 J95 0.3- 0.0 200916 I52 0.1- 0.2+ 200916 I93 0.1+ 0.2+ 200917 J95 0.2- 0.1+ 200916 I52 0.2- 0.0 200916 K63 0.0 0.1+ 200917 J95 0.0 0.1- 200916 I52 0.3- 0.1+ 200916 K63 0.2+ 0.3- 200917 Z99 0.1- 0.2+ 200916 T05 0.1- 0.3- 200917 H36 0.4+ 0.1+ 200917 Z99 0.0 0.0 200916 T05 0.4- 0.4+ 200917 H36 0.5+ 0.1- 200917 Z99 0.1+ 0.1- 200916 T05 0.4- 0.1+ 200917 H36 0.6+ 0.1- 200917 Z99 0.0 0.0 200916 T05 0.1- 0.2+ 200917 711 0.0 0.1- 200917 Z99 0.3- 0.2- 200916 204 0.2- 0.2+ 200917 711 0.2- 0.3- 200917 203 0.0 0.1+ 200916 204 0.1+ 0.0 200917 711 0.3- 0.1+ 200917 203 0.2+ 0.2+ 200916 C95 0.1+ 0.2+ 200917 I52 0.0 0.1+ 200917 Z80 0.4- 0.7- 200916 204 0.2- 0.1+ 200917 I52 0.1- 0.2+ 200917 J69 0.6+ 0.1+ 200916 C95 0.3- 0.1- 200917 I52 0.2+ 0.3+ 200917 Z80 0.4- 0.9- 200916 595 0.1- 0.0 200917 I52 0.2- 0.2- 200917 J69 0.3+ 0.1- 200916 C95 0.2+ 0.4- 200917 L01 0.1+ 0.1+ 200917 J69 0.5- 0.5+ 200916 104 0.3- 0.5- 200917 L01 0.1+ 0.0 200917 Z80 0.1- 0.5+ 200916 958 0.5+ 0.8+ 200917 L01 0.2+ 0.0 200917 J69 0.1+ 0.2- 200916 958 0.1+ 0.3+ 200917 L01 0.1+ 0.0 200917 Z80 0.4+ 0.4+ 200916 958 0.1+ 0.1- 200917 L01 0.2+ 0.0 200917 Z80 0.0 0.0 200916 104 0.4- 0.6- 200917 A17 0.1- 0.2- 200918 H21 0.1- 0.2+ 200916 595 0.3+ 0.0 200917 K87 0.5+ 0.8+ 200918 H36 0.4+ 0.8- 200916 104 0.1- 0.5- 200917 A17 0.0 0.0 200918 H21 0.0 0.1- 200916 K38 0.2+ 0.2+ 200917 K87 0.1+ 0.3+ 200918 H21 0.0 0.2+ 200916 L04 0.3+ 0.5- 200917 K87 0.3+ 0.2+ 200918 H36 0.2+ 0.2- 200916 K38 0.1- 0.1- 200917 A17 0.0 0.1- 200918 H21 0.1+ 0.1+ 200916 I93 0.3+ 0.3+ 200917 K87 0.2+ 0.4- 200918 H21 0.0 0.3+ 200916 L04 0.2+ 0.1- 200917 A17 0.0 0.1- 200918 H36 0.1+ 0.2- Ephemeris: 2020 SB a,e,i = 0.73, 0.36, 6 q = 0.4629 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2020 08 19 08 49 47.4 +43 01 17 0.1316 0.9049 33.2 142.2 22.8 ... 2020 09 03 10 30 17.7 +63 06 46 0.09825 0.9567 55.7 119.5 20.0 ... 2020 09 11 13 14 00.2 +68 14 35 0.09103 0.9742 66.6 108.5 19.1 ... 2020 09 17 15 20 10.5 +63 25 58 0.09077 0.9827 73.1 101.8 18.8 2020 09 18 15 35 41.2 +62 05 05 0.09114 0.9837 74.0 100.9 18.7 2020 09 19 15 49 37.8 +60 38 50 0.09162 0.9846 74.8 100.0 18.7 ... 2020 09 25 16 47 53.3 +51 10 05 0.09668 0.9878 78.3 96.2 18.6 ... 2020 10 03 17 27 05.3 +39 01 55 0.1080 0.9860 79.2 94.7 18.8 ... 2020 10 18 17 57 16.8 +21 45 46 0.1361 0.9635 72.2 100.1 19.5 M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-S55


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