[Iaude] MPEC S242: 2017 SH20 [a=1.04,e=0.23,i=41.7,H=23.9]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Sep 30 14:33:17 EDT 2017


M.P.E.C. 2017-S242                               Issued 2017 Sept. 30, 18:29 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 SH20
 
Observations:
     K17S20H* C2017 09 28.40401 00 13 44.31 -06 08 54.6          19.1 oLES242T08
     K17S20H  C2017 09 28.41423 00 13 28.03 -06 05 27.2          19.1 oLES242T08
     K17S20H  C2017 09 28.41905 00 13 20.57 -06 03 50.3          19.1 oLES242T08
     K17S20H  C2017 09 28.42501 00 13 11.07 -06 01 48.8          19.2 oLES242T08
     K17S20H  C2017 09 29.25382 23 52 53.32 -01 30 31.3          19.0 RoES242926
     K17S20H  C2017 09 29.25532 23 52 51.13 -01 30 02.9          19.1 RoES242926
     K17S20H  C2017 09 29.25684 23 52 48.93 -01 29 34.2          19.1 RoES242926
     K17S20H KC2017 09 29.90270 23 38 17.14 +01 45 48.6          19.2  oES242K88
     K17S20H KC2017 09 29.90568 23 38 13.17 +01 46 40.8          19.1  oES242K88
     K17S20H KC2017 09 30.03499 23 35 24.21 +02 24 01.8          19.7  UES242104
     K17S20H KC2017 09 30.04158 23 35 15.68 +02 25 55.1                UES242104
     K17S20H KC2017 09 30.04818 23 35 07.12 +02 27 47.9          19.4  UES242104
     K17S20H KC2017 09 30.10215123 34 05.01 +02 43 14.7          18.9 VuES242H21
     K17S20H KC2017 09 30.10518023 34 01.09 +02 44 06.2          19.1 VuES242H21
     K17S20H KC2017 09 30.10947123 33 55.55 +02 45 18.7          19.1 VuES242H21
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 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.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, A. Heinze, H. Weiland,
    B. Stalder, J. Tonry.  Measurers L. Denneau, A. Heinze, J. Tonry.  0.5-m
    f/2.0 Schmidt + CCD.
 
Orbital elements:
2017 SH20                                                Earth MOID = 0.0783 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M  64.27246              (2000.0)            P               Q
n   0.92925205     Peri.  246.19897     -0.33661156     +0.93950237
a   1.0400328      Node     5.47165     -0.41670902     -0.08818275
e   0.2322574      Incl.   41.72763     -0.84442066     -0.33099713
P   1.06           H   23.9           G   0.15           U   8
Residuals in seconds of arc
170928 T08  0.0   1.0+    170929 926  0.1-  0.1+    170930 104  0.2+  0.2+
170928 T08  1.3-  0.4+    170929 926  0.3-  0.1+    170930 104  0.0   0.1+
170928 T08  1.2+  0.8-    170929 K88  0.0   0.5-    170930 H21  0.3+  0.4+
170928 T08  0.2+  0.5-    170929 K88  0.4-  0.3-    170930 H21  0.0   0.4+
170929 926  0.3+  0.0     170930 104  0.1+  0.3-    170930 H21  0.1-  0.0

Ephemeris:
2017 SH20                a,e,i = 1.04, 0.23, 42                  q = 0.7985
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 31    06 38 58.4 -41 02 14   0.3287  0.9706    73.8    87.2    24.5
...
2017 09 15    05 20 09.8 -41 36 04   0.1650  1.0307    94.1    76.7    22.7
...
2017 09 23    02 52 05.9 -32 58 45   0.09119 1.0618   127.8    48.3    20.6
...
2017 09 29    23 58 54.8 -02 50 48   0.08329 1.0844   172.4     7.0    19.2
2017 09 30    23 36 12.8 +02 14 53   0.08842 1.0881   167.8    11.2    19.5
2017 10 01    23 16 14.1 +06 41 52   0.09497 1.0917   161.6    16.8    19.9
...
2017 10 07    22 00 34.6 +21 57 59   0.1516  1.1131   135.8    38.8    21.6
...
2017 10 15    21 20 04.3 +28 43 07   0.2441  1.1401   120.3    49.0    23.0
...
2017 10 30    21 00 21.3 +32 40 12   0.4246  1.1852   106.4    53.5    24.4

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S242




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