MPEC 2017-W79 : 2017 WG1
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M.P.E.C. 2017-W79 Issued 2017 Nov. 20, 20:02 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
2017 WG1
Observations:
K17W01G* C2017 11 17.35053 01 07 45.054-03 42 17.78 20.3 wLEW079F51
K17W01G C2017 11 17.36098 01 07 47.853-03 43 28.18 20.6 wLEW079F51
K17W01G C2017 11 17.37141 01 07 50.674-03 44 38.42 20.2 wLEW079F51
K17W01G C2017 11 17.38185 01 07 53.480-03 45 48.50 20.2 wLEW079F51
K17W01G KC2017 11 17.90323 01 10 25.42 -04 44 36.8 18.6 UEW079K63
K17W01G KC2017 11 17.90716 01 10 26.55 -04 45 03.1 19.3 UEW079K63
K17W01G KC2017 11 17.91131 01 10 27.70 -04 45 30.8 19.4 UEW079K63
K17W01G |C2017 11 18.03012 01 11 04.36 -04 57 50.7 20.1 VuEW079807
K17W01G |C2017 11 18.03377 01 11 05.32 -04 58 15.5 20.3 VuEW079807
K17W01G |C2017 11 18.03741 01 11 06.36 -04 58 40.0 20.3 VuEW079807
K17W01G C2017 11 18.28133 01 12 15.87 -05 26 52.0 19.9 RoEW079926
K17W01G C2017 11 18.28619 01 12 17.26 -05 27 25.2 19.4 RoEW079926
K17W01G C2017 11 18.29177 01 12 18.80 -05 28 02.3 19.4 RoEW079926
K17W01G KC2017 11 18.47039 01 13 12.57 -05 47 02.5 19.8 RUEW079474
K17W01G KC2017 11 18.47159 01 13 12.91 -05 47 10.2 20.1 RUEW079474
K17W01G KC2017 11 18.47279 01 13 13.26 -05 47 18.7 19.7 RUEW079474
K17W01G KC2017 11 18.47399 01 13 13.60 -05 47 26.3 20.0 RUEW079474
K17W01G KC2017 11 18.83807 01 15 03.45 -06 29 22.9 UEW079104
K17W01G KC2017 11 18.84634 01 15 05.81 -06 30 17.5 20.2 RUEW079104
K17W01G KC2017 11 18.85531 01 15 08.32 -06 31 17.9 20.0 RUEW079104
K17W01G C2017 11 19.11405 01 16 27.57 -07 00 04.6 20.0 RoEW079926
K17W01G C2017 11 19.11666 01 16 28.25 -07 00 21.1 20.0 RoEW079926
K17W01G C2017 11 19.11924 01 16 29.05 -07 00 39.3 20.1 RoEW079926
K17W01G C2017 11 19.12343 01 16 30.22 -07 01 08.4 20.3 GUEW079I52
K17W01G C2017 11 19.12519 01 16 30.73 -07 01 19.8 19.9 GUEW079I52
K17W01G C2017 11 19.12870 01 16 31.75 -07 01 43.2 20.1 GUEW079I52
K17W01G KC2017 11 19.17707 01 16 44.80 -07 07 12.0 19.7 RqEW079734
K17W01G KC2017 11 19.18223 01 16 46.27 -07 07 46.9 19.8 RqEW079734
K17W01G KC2017 11 19.18732 01 16 47.73 -07 08 21.1 19.6 RqEW079734
K17W01G KC2017 11 19.19241 01 16 49.19 -07 08 55.4 19.6 RqEW079734
K17W01G KC2017 11 19.19752 01 16 50.66 -07 09 29.7 19.5 RqEW079734
K17W01G KC2017 11 19.80532 01 19 57.21 -08 17 12.5 20.2 RUEW079K51
K17W01G KC2017 11 19.80804 01 19 58.01 -08 17 30.9 19.7 RUEW079K51
K17W01G KC2017 11 19.81076 01 19 58.78 -08 17 48.5 19.9 RUEW079K51
K17W01G KC2017 11 19.84412 01 20 08.52 -08 21 30.8 qEW079595
K17W01G KC2017 11 19.86472 01 20 14.51 -08 23 48.1 19.7 VqEW079595
K17W01G KC2017 11 19.88140 01 20 19.93 -08 25 39.4 19.8 VqEW079I93
K17W01G KC2017 11 19.89056 01 20 22.60 -08 26 40.1 19.9 VqEW079I93
K17W01G KC2017 11 20.09435001 21 26.06 -08 49 11.8 20.1 VuEW079H21
K17W01G KC2017 11 20.09832501 21 27.21 -08 49 38.3 20.2 VuEW079H21
K17W01G KC2017 11 20.10957101 21 30.50 -08 50 53.0 20.2 VuEW079H21
K17W01G KC2017 11 20.13109 01 21 37.17 -08 53 15.7 20.0 RqEW079H36
K17W01G KC2017 11 20.13665 01 21 39.61 -08 53 47.5 oEW079691
K17W01G KC2017 11 20.14517 01 21 42.11 -08 54 44.0 oEW079691
K17W01G KC2017 11 20.14697 01 21 41.74 -08 55 01.0 20.0 RqEW079H36
K17W01G KC2017 11 20.15368 01 21 44.57 -08 55 41.0 oEW079691
K17W01G KC2017 11 20.16286 01 21 46.39 -08 56 46.4 20.2 RqEW079H36
K17W01G C2017 11 20.22740 01 22 06.02 -09 03 50.3 20.0 GUEW079G96
K17W01G C2017 11 20.23269 01 22 07.55 -09 04 25.2 19.9 GUEW079G96
K17W01G C2017 11 20.23794 01 22 09.07 -09 05 00.0 19.9 GUEW079G96
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri, M. D. Grazia.
Measurers P. Bacci, L. Tesi, G. Fagioli. 0.60-m f/4 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
595 Farra d'Isonzo. Observers F. Bressan, E. Pettarin, F. Piani. Measurer
E. Pettarin. 0.61-m f/4.0 reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer M. T. Read. 0.9-m f/3 reflector
+ CCD.
734 Farpoint Observatory. Observer G. Hug. 0.69-m reflector + CCD.
807 Cerro Tololo. Observers T. Linder, R. Holmes. 0.61-m f/6.5 astrograph
+ CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer E. J. Christensen. Measurers
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
F. C. Shelly. 1.5-m reflector + 10K 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 R. G. Matheny.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
K51 Osservatorio del Celado, Castello Tesino. Observer G. Favero. Measurer
M. Campestrin. 0.80-m f/4 reflector + CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.40-m
f/3.2 Newtonian reflector + CCD.
Orbital elements:
2017 WG1 Earth MOID = 0.1364 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 340.90409 (2000.0) P Q
n 0.20640952 Peri. 204.28522 +0.37488684 -0.89962549
a 2.8356300 Node 224.62577 +0.89416911 +0.41465005
e 0.6121399 Incl. 18.58670 +0.24478860 -0.13689162
P 4.78 H 22.3 G 0.15 U 5
Residuals in seconds of arc
171117 F51 0.1+ 0.1+ 171118 104 0.4+ 0.5- 171119 595 0.7+ 0.6+
171117 F51 0.1- 0.0 171118 104 0.5+ 0.4+ 171119 595 0.3+ 0.5+
171117 F51 0.1+ 0.0 171118 104 0.2- 0.2+ 171119 I93 0.2- 0.5-
171117 F51 0.0 0.1+ 171119 926 0.0 0.2- 171119 I93 0.2- 0.2-
171117 K63 1.3- 0.5- 171119 926 1.0- 0.8+ 171120 H21 0.0 0.1-
171117 K63 0.7- 0.4- 171119 926 0.0 0.0 171120 H21 0.2- 0.1-
171117 K63 0.7- 0.2- 171119 I52 0.2- 0.3- 171120 H21 0.2- 0.1-
171118 807 0.1- 0.0 171119 I52 0.1- 0.1+ 171120 H36 0.1+ 0.3-
171118 807 0.9- 0.2- 171119 I52 0.2+ 0.3+ 171120 691 0.2+ 0.0
171118 807 0.4- 0.2- 171119 734 0.1+ 0.1+ 171120 691 0.3+ 0.2+
171118 926 0.5- 0.5+ 171119 734 0.1+ 0.2- 171120 H36 1.0- 0.1-
171118 926 0.1- 0.0 171119 734 0.1+ 0.4- 171120 691 0.0 0.2-
171118 926 0.4- 0.3+ 171119 734 0.2+ 0.6- 171120 H36 0.9- 0.0
171118 474 0.2+ 0.1- 171119 734 0.3+ 0.7- 171120 G96 0.2+ 0.1+
171118 474 0.2+ 0.3+ 171119 K51 0.0 0.3+ 171120 G96 0.0 0.3+
171118 474 0.4+ 0.1- 171119 K51 0.0 0.0 171120 G96 0.2- 0.2+
171118 474 0.4+ 0.3+ 171119 K51 0.3- 0.6+
Ephemeris:
2017 WG1 a,e,i = 2.84, 0.61, 19 q = 1.0998
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 10 21 23 49 20.4 +32 14 48 0.2829 1.2405 146.2 26.5 21.2
...
2017 11 05 00 19 20.2 +17 12 03 0.2038 1.1664 146.2 28.2 20.4
...
2017 11 13 00 48 09.1 +04 18 52 0.1795 1.1368 142.2 32.3 20.2
...
2017 11 19 01 15 51.5 -06 46 44 0.1728 1.1200 136.5 37.4 20.2
2017 11 20 01 20 56.0 -08 38 02 0.1727 1.1176 135.4 38.4 20.3
2017 11 21 01 26 07.5 -10 28 09 0.1729 1.1154 134.2 39.4 20.3
...
2017 11 27 01 59 15.5 -20 39 37 0.1800 1.1052 127.3 45.2 20.5
...
2017 12 05 02 45 55.6 -30 47 57 0.2026 1.0998 119.6 51.1 20.9
...
2017 12 20 04 05 23.2 -39 05 05 0.2682 1.1154 112.8 54.4 21.7
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-W79
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