[Iaude] MPEC T05: 2017 SW20 [a=2.00,e=0.80,i=19.9,H=19.6]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sun Oct 1 10:35:20 EDT 2017
M.P.E.C. 2017-T05 Issued 2017 Oct. 1, 14:30 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 http://www.minorplanetcenter.net/ ISSN 1523-6714
2017 SW20
Observations:
K17S20W* C2017 09 26.60264 04 17 04.756-23 29 49.06 21.0 wLET005F51
K17S20W C2017 09 26.61249 04 17 02.409-23 29 56.28 21.1 wLET005F51
K17S20W C2017 09 26.62231 04 17 00.066-23 30 03.32 21.1 wLET005F51
K17S20W KC2017 09 27.08909804 15 11.65 -23 35 24.1 20.5 GUET005K91
K17S20W KC2017 09 27.09409704 15 10.45 -23 35 27.7 20.6 GUET005K91
K17S20W KC2017 09 27.09909604 15 09.27 -23 35 31.2 20.5 GUET005K91
K17S20W |C2017 09 27.29337 04 14 24.24 -23 37 47.0 20.5 VuET005807
K17S20W |C2017 09 27.29755 04 14 23.25 -23 37 50.0 20.6 VuET005807
K17S20W |C2017 09 27.30183 04 14 22.22 -23 37 52.9 20.5 VuET005807
K17S20W C2017 09 27.55191 04 13 23.739-23 40 55.54 20.7 wLET005F51
K17S20W C2017 09 27.57255 04 13 18.778-23 41 09.84 21.0 wLET005F51
K17S20W C2017 09 27.58286 04 13 16.310-23 41 16.88 21.0 wLET005F51
K17S20W C2017 09 28.46779 04 09 48.61 -23 51 02.9 qET005I52
K17S20W C2017 09 28.46903 04 09 48.26 -23 51 03.2 qET005I52
K17S20W C2017 09 28.47311 04 09 47.29 -23 51 06.5 21.0 VqET005I52
K17S20W C2017 09 28.47435 04 09 47.01 -23 51 05.6 qET005I52
K17S20W C2017 09 30.49010 04 01 50.49 -24 10 56.3 20.8 RoET005926
K17S20W C2017 09 30.49756 04 01 48.68 -24 11 00.2 20.6 RoET005926
K17S20W C2017 09 30.50530 04 01 46.81 -24 11 04.5 20.5 RoET005926
K17S20W C2017 10 01.39106 03 58 16.76 -24 18 45.4 20.5 RoET005926
K17S20W C2017 10 01.39546 03 58 15.71 -24 18 46.9 20.7 RoET005926
K17S20W C2017 10 01.39987 03 58 14.62 -24 18 49.1 20.8 RoET005926
Observer details:
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.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
K91 Sutherland-LCO A. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2017 SW20 Earth MOID = 0.2892 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 17.51164 (2000.0) P Q
n 0.34840093 Peri. 167.35911 -0.30679719 +0.88950343
a 2.0002449 Node 83.99000 -0.90019535 -0.15565683
e 0.7960140 Incl. 19.90642 -0.30906927 -0.42959819
P 2.83 H 19.6 G 0.15 U 8
Residuals in seconds of arc
170926 F51 0.0 0.1- 170927 807 0.2+ 0.6- 170930 926 0.5+ 0.1+
170926 F51 0.1+ 0.2- 170927 F51 0.4+ 0.1- 170930 926 0.5+ 0.2+
170926 F51 0.0 0.2- 170927 F51 0.2+ 0.2- 170930 926 0.6+ 0.0
170927 K91 0.3+ 0.4- 170927 F51 0.3+ 0.2- 171001 926 0.2- 0.9-
170927 K91 0.2+ 0.5- 170928 I52 0.1- 1.0- 171001 926 0.1+ 0.2-
170927 K91 0.4+ 0.5- 170928 I52 0.8- 0.5- 171001 926 0.2- 0.2-
170927 807 0.2+ 0.7- 170928 I52 0.6- 1.2-
170927 807 0.3+ 0.7- 170928 I52 0.4- 0.5+
Ephemeris:
2017 SW20 a,e,i = 2.00, 0.80, 20 q = 0.4080
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 09 01 05 44 35.6 -15 34 27 0.5549 1.0373 77.1 71.5 20.9
...
2017 09 16 04 56 06.4 -20 46 21 0.5908 1.2512 100.0 52.3 20.9
...
2017 09 24 04 27 03.5 -22 55 52 0.6146 1.3580 111.9 43.3 20.9
...
2017 09 30 04 03 47.1 -24 06 13 0.6383 1.4350 120.5 37.0 20.9
2017 10 01 03 59 49.7 -24 15 15 0.6429 1.4476 121.9 36.0 20.9
2017 10 02 03 55 51.6 -24 23 27 0.6477 1.4601 123.2 35.0 20.9
...
2017 10 08 03 32 03.0 -24 54 35 0.6812 1.5337 130.8 29.5 21.0
...
2017 10 16 03 01 34.5 -24 47 36 0.7399 1.6283 138.8 23.8 21.1
...
2017 10 31 02 14 42.6 -22 31 26 0.8975 1.7951 143.4 19.2 21.6
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-T05
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