[Iaude] MPEC P78: 2018 PC20 [a=1.71,e=0.40,i=9.0,H=25.3]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sun Aug 12 17:17:17 EDT 2018
M.P.E.C. 2018-P78 Issued 2018 Aug. 12, 21:13 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 PC20
Observations:
K18P20C* C2018 08 10.52233 21 38 04.60 -06 21 50.9 19.0 oUEP078T08
K18P20C C2018 08 10.52335 21 38 05.78 -06 22 07.6 18.4 oUEP078T08
K18P20C C2018 08 10.53335 21 38 17.82 -06 24 42.2 18.8 oUEP078T08
K18P20C C2018 08 10.53381 21 38 18.33 -06 24 48.8 18.3 oUEP078T08
K18P20C C2018 08 10.54391 21 38 30.47 -06 27 24.9 18.6 oUEP078T08
K18P20C C2018 08 10.55540 21 38 44.24 -06 30 21.7 18.4 oUEP078T08
K18P20C KC2018 08 10.92175521 46 40.59 -08 04 07.5 18.4 G EP078J95
K18P20C KC2018 08 10.92485821 46 44.23 -08 04 53.1 18.6 G EP078J95
K18P20C KC2018 08 10.92765121 46 47.49 -08 05 34.0 18.5 G EP078J95
K18P20C KC2018 08 10.93947121 46 59.04 -08 08 14.3 18.8 GVEP078L01
K18P20C KC2018 08 10.94169721 47 01.57 -08 08 46.6 18.7 GVEP078L01
K18P20C KC2018 08 10.94482721 47 05.18 -08 09 32.5 19.0 GVEP078L01
K18P20C KC2018 08 10.94708321 47 07.80 -08 10 05.3 19.1 GVEP078L01
K18P20C KC2018 08 10.94919021 47 10.19 -08 10 36.2 18.9 GVEP078L01
K18P20C KC2018 08 10.95151421 47 12.86 -08 11 09.8 19.1 GVEP078L01
K18P20C KC2018 08 10.96678 21 47 30.73 -08 14 54.2 18.2 RqEP078K51
K18P20C KC2018 08 10.96928 21 47 33.60 -08 15 30.2 18.2 RqEP078K51
K18P20C KC2018 08 10.97178 21 47 36.46 -08 16 06.3 18.1 RqEP078K51
K18P20C KC2018 08 10.97896 21 47 44.85 -08 17 45.1 18.4 GVEP078104
K18P20C KC2018 08 10.98262 21 47 49.00 -08 18 38.3 18.3 GVEP078104
K18P20C KC2018 08 10.98679 21 47 53.75 -08 19 38.8 18.3 GVEP078104
K18P20C KC2018 08 10.98932 21 47 56.69 -08 20 15.1 17.7 RVEP078K63
K18P20C KC2018 08 10.99098 21 47 58.50 -08 20 39.2 18.0 GVEP078104
K18P20C KC2018 08 10.99153 21 47 59.21 -08 20 47.2 17.7 RVEP078K63
K18P20C KC2018 08 10.99333 21 48 01.24 -08 21 13.4 17.8 RVEP078K63
K18P20C KC2018 08 11.04989 21 49 21.61 -08 29 33.6 18.2 VUEP078I19
K18P20C KC2018 08 11.07038 21 49 44.97 -08 34 30.5 18.1 VUEP078I19
K18P20C KC2018 08 11.07271 21 49 47.66 -08 35 04.8 18.5 VUEP078I19
K18P20C KC2018 08 11.25002 21 53 08.32 -09 21 14.0 18.7 RqEP078850
K18P20C KC2018 08 11.26409 21 53 23.56 -09 24 28.4 18.5 RqEP078850
K18P20C KC2018 08 11.27127 21 53 31.33 -09 26 07.4 18.0 RqEP078850
K18P20C KC2018 08 11.27846 21 53 39.12 -09 27 46.0 18.2 RqEP078850
K18P20C KC2018 08 11.28609 21 53 47.35 -09 29 31.1 18.2 RqEP078850
K18P20C KC2018 08 11.29711 21 53 59.29 -09 32 01.8 19.3 RqEP078850
K18P20C KC2018 08 11.95324 22 06 14.75 -11 54 09.1 17.8 RqEP078K61
K18P20C KC2018 08 11.95372 22 06 15.28 -11 54 15.5 17.9 RqEP078K61
K18P20C KC2018 08 11.95490 22 06 16.47 -11 54 30.1 17.9 RqEP078K61
K18P20C KC2018 08 12.18122 22 10 16.83 -12 38 53.3 18.7 VqEP078W34
K18P20C KC2018 08 12.18934 22 10 24.61 -12 40 29.1 18.9 VqEP078W34
K18P20C KC2018 08 12.20424 22 10 38.78 -12 43 24.2 18.9 VqEP078W34
K18P20C KC2018 08 12.29580022 12 06.22 -13 01 15.0 19.1 VuEP078H21
K18P20C KC2018 08 12.29816922 12 08.45 -13 01 42.0 19.1 VuEP078H21
K18P20C C2018 08 12.54089 22 16 05.26 -13 46 00.2 19.3 cUEP078T05
K18P20C C2018 08 12.55167 22 16 14.98 -13 47 56.9 18.9 cUEP078T05
K18P20C C2018 08 12.56246 22 16 24.62 -13 49 52.6 19.1 cUEP078T05
K18P20C C2018 08 12.57330 22 16 34.36 -13 51 49.0 19.4 cUEP078T05
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri, M. D. Grazia.
Measurers P. Bacci, L. Tesi, G. Fagioli. 0.6-m f/4.0 reflector + CCD.
850 Cordell-Lorenz Observatory, Sewanee. Observer D. T. Durig. 0.3-m f/9.4
Schmidt-Cassegrain + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.61-m f/4.5
astrograph + CCD.
I19 Observatorio El Gato Gris, Tanti. Observer C. Colazo. 0.36-m f/10.70
Schmidt-Cassegrain + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K51 Osservatorio del Celado, Castello Tesino. Observers M. Campestrin,
R. Broccato. Measurer M. Campestrin. 0.80-m f/4 reflector + CCD.
K61 Rokycany Observatory. Observer M. Adamovsky. 0.51-m f/6.8 reflector
+ CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.41-m
f/3.2 Newtonian reflector + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Ivanic, M. Rakitic,
L. Gelo, J. Minic, F. Hrzenjak, E. Pettarin. Measurers M. Rakitic,
J. Minic. 1.0-m f/2.9 reflector + CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, H. Flewelling, A. Heinze,
H. Weiland, J. Tonry. Measurers L. Denneau, H. Flewelling, A. Heinze,
J. Tonry, A. Fitzsimmons, D. Young. 0.5-m f/2.0 Schmidt + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, H. Flewelling, A. Heinze,
H. Weiland, J. Tonry. Measurers L. Denneau, H. Flewelling, A. Heinze,
J. Tonry, A. Fitzsimmons, D. Young. 0.5-m f/2.0 Schmidt + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. 0.20-m f/10
Schmidt-Cassegrain + CCD + f/7.0 focal reducer.
Orbital elements:
2018 PC20 Earth MOID = 0.0282 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 307.89165 (2000.0) P Q
n 0.44130717 Peri. 153.39441 +0.39013376 +0.91514063
a 1.7086065 Node 139.34666 -0.87011683 +0.40250109
e 0.4041053 Incl. 8.96797 -0.30115170 +0.02259418
P 2.23 H 25.3 G 0.15 U 6
Residuals in seconds of arc
180810 T08 0.4+ 0.2+ 180810 K51 0.3+ 0.1- 180811 850 0.5- 0.0
180810 T08 0.2- 0.7- 180810 K51 0.4+ 0.1+ 180811 850 0.0 0.1+
180810 T08 0.5+ 0.3- 180810 104 0.2+ 0.1+ 180811 K61 0.1+ 0.7+
180810 T08 0.1- 0.2+ 180810 104 0.0 0.1- 180811 K61 0.8+ 0.1+
180810 T08 0.1+ 0.3+ 180810 104 0.1+ 0.3- 180811 K61 1.0+ 0.0
180810 T08 0.6- 0.8+ 180810 K63 0.0 0.0 180812 W34 0.1+ 0.3+
180810 J95 0.2- 0.0 180810 104 0.1- 0.1- 180812 W34 0.3+ 0.3+
180810 J95 0.0 0.0 180810 K63 0.1+ 0.2- 180812 W34 0.1- 0.5+
180810 J95 0.1- 0.1+ 180810 K63 0.1- 0.4- 180812 H21 0.1- 0.1+
180810 L01 0.0 0.1- 180811 I19 0.8+ 0.4+ 180812 H21 0.0 0.2+
180810 L01 0.4- 0.1+ 180811 I19 0.3- 0.3- 180812 T05 0.2- 0.1-
180810 L01 0.1- 0.1- 180811 I19 0.3+ 1.0- 180812 T05 0.4+ 0.5-
180810 L01 0.4+ 0.0 180811 850 0.1- 0.2+ 180812 T05 0.5- 0.3-
180810 L01 0.0 0.1- 180811 850 0.4- 0.2+ 180812 T05 0.9- 0.6-
180810 L01 0.2+ 0.1+ 180811 850 0.4- 0.1+
180810 K51 0.1+ 0.4- 180811 850 0.2- 0.4+
Ephemeris:
2018 PC20 a,e,i = 1.71, 0.40, 9 q = 1.0181
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 07 13 14 34 32.4 +38 28 22 0.1146 1.0203 88.6 84.9 23.6
...
2018 07 28 16 06 50.7 +37 59 14 0.05373 1.0228 96.3 80.7 21.8
...
2018 08 05 19 03 58.8 +22 39 36 0.02991 1.0345 131.3 47.5 19.5
...
2018 08 11 21 48 08.4 -08 19 17 0.03456 1.0477 170.4 9.2 18.7
2018 08 12 22 07 00.8 -12 00 02 0.03742 1.0503 169.5 10.1 18.9
2018 08 13 22 23 25.4 -15 04 03 0.04064 1.0529 167.0 12.5 19.2
...
2018 08 19 23 25 22.1 -25 09 47 0.06438 1.0708 154.8 23.7 20.6
...
2018 08 27 23 59 28.7 -29 33 26 0.1012 1.0993 150.1 27.3 21.8
...
2018 09 11 00 16 59.6 -31 02 45 0.1786 1.1650 150.0 25.6 23.1
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-P78
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