MPEC 2017-S141: 2017 SG12
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M.P.E.C. 2017-S141 Issued 2017 Sept. 25, 21:14 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 SG12
Observations:
K17S12G* C2017 09 22.42614 00 19 01.207+00 56 38.76 21.5 wLES141F51
K17S12G C2017 09 22.43812 00 19 01.443+00 56 53.83 21.8 wLES141F51
K17S12G C2017 09 22.45006 00 19 01.673+00 57 08.64 21.9 wLES141F51
K17S12G C2017 09 22.46203 00 19 01.904+00 57 23.70 22.0 wLES141F51
K17S12G C2017 09 23.22454 00 19 27.10 +01 13 13.2 21.5 RoES141926
K17S12G KC2017 09 23.22834800 19 26.51 +01 13 14.0 21.6 VuES141H21
K17S12G C2017 09 23.23759 00 19 27.38 +01 13 29.1 21.3 RoES141926
K17S12G KC2017 09 23.24195100 19 26.81 +01 13 31.1 22.0 VuES141H21
K17S12G C2017 09 23.25057 00 19 27.68 +01 13 45.6 21.4 RoES141926
K17S12G KC2017 09 23.25367100 19 26.55 +01 14 20.1 21.3 GUES141W85
K17S12G KC2017 09 23.25970600 19 27.20 +01 13 53.4 21.5 VuES141H21
K17S12G KC2017 09 23.26353600 19 26.75 +01 14 32.4 21.4 GUES141W85
K17S12G KC2017 09 23.27093500 19 26.91 +01 14 41.8 21.2 GUES141W85
K17S12G KC2017 09 24.28275500 19 58.89 +01 35 21.7 21.6 VuES141H21
K17S12G KC2017 09 24.29228600 19 59.08 +01 35 34.0 22.1 VuES141H21
Observer details:
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.
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, 1.3-m f/4.0 astrograph + CCD.
W85 Cerro Tololo-LCO A. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2017 SG12 Earth MOID = 0.2849 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 351.88721 (2000.0) P Q
n 0.24287113 Peri. 9.24590 +0.97479827 -0.22303757
a 2.5442051 Node 3.65190 +0.19961705 +0.86253409
e 0.4950838 Incl. 4.27735 +0.09960601 +0.45419069
P 4.06 H 23.4 G 0.15 U 7
Residuals in seconds of arc
170922 F51 0.1+ 0.1- 170923 H21 0.0 0.2- 170923 H21 0.2+ 0.1-
170922 F51 0.0 0.1+ 170923 926 0.0 0.1- 170923 W85 0.0 0.2-
170922 F51 0.1- 0.0 170923 H21 0.1+ 0.1- 170923 W85 0.1+ 0.1-
170922 F51 0.2- 0.1+ 170923 926 0.3+ 0.1+ 170924 H21 0.1- 0.1-
170923 926 0.1+ 0.4+ 170923 W85 0.1+ 0.1- 170924 H21 0.3- 0.2+
Ephemeris:
2017 SG12 a,e,i = 2.54, 0.50, 4 q = 1.2846
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 08 26 23 59 08.3 -07 06 27 0.3759 1.3606 155.0 18.3 22.9
...
2017 09 10 00 11 35.6 -03 06 19 0.3182 1.3172 165.3 11.2 22.2
...
2017 09 18 00 16 36.1 -00 33 35 0.2990 1.3011 171.2 6.8 21.9
...
2017 09 24 00 19 50.4 +01 29 42 0.2899 1.2925 175.7 3.3 21.6
2017 09 25 00 20 21.5 +01 50 47 0.2889 1.2914 176.5 2.7 21.5
2017 09 26 00 20 52.4 +02 11 58 0.2880 1.2904 177.2 2.2 21.5
...
2017 10 02 00 23 58.9 +04 20 31 0.2852 1.2859 177.8 1.7 21.4
...
2017 10 10 00 28 29.8 +07 10 31 0.2886 1.2849 171.8 6.3 21.7
...
2017 10 25 00 39 43.6 +11 57 13 0.3170 1.2982 161.0 14.5 22.3
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-S141
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