[Iaude] MPEC S141: 2017 SG12 [a=2.54,e=0.50,i=4.3,H=23.4]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Mon Sep 25 17:17:17 EDT 2017


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 at CFA.HARVARD.EDU
            URL http://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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