• Processing (Info)

    • MPEC 2017-S77 : 2017 SO2

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    M.P.E.C. 2017-S77                                Issued 2017 Sept. 20, 02:38 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 SO2

Observations:
     K17S02O  C2017 09 14.52604 02 49 36.150-06 02 30.62         21.9 iLES077F51
     K17S02O  C2017 09 14.53724 02 49 38.160-06 02 42.58         21.6 iLES077F51
     K17S02O  C2017 09 14.54845 02 49 40.183-06 02 54.59         21.0 iLES077F51
     K17S02O* C2017 09 17.57944 02 59 27.754-06 59 24.44         21.8 wLES077F51
     K17S02O  C2017 09 17.59207 02 59 30.231-06 59 39.43         21.6 wLES077F51
     K17S02O  C2017 09 17.60470 02 59 32.703-06 59 54.41         21.6 wLES077F51
     K17S02O  C2017 09 17.61730 02 59 35.201-07 00 09.45         21.4 wLES077F51
     K17S02O KC2017 09 18.32144803 02 00.76 -07 14 09.7          21.0 GUES077W85
     K17S02O KC2017 09 18.32645203 02 01.74 -07 14 15.8          21.3 GUES077W85
     K17S02O KC2017 09 18.33146103 02 02.77 -07 14 21.8          21.0 GUES077W85
     K17S02O KC2017 09 18.33647303 02 03.77 -07 14 28.2          21.2 GUES077W85
     K17S02O KC2017 09 19.02465803 04 30.033-07 29 08.52         21.6 GUES077J04
     K17S02O KC2017 09 19.03161503 04 31.462-07 29 17.59         20.9 GUES077J04
     K17S02O KC2017 09 19.03857203 04 32.913-07 29 26.08         21.5 GUES077J04
     K17S02O KC2017 09 19.32251 03 05 33.78 -07 35 31.2                oES077291
     K17S02O KC2017 09 19.32962 03 05 35.30 -07 35 40.4                oES077291
     K17S02O KC2017 09 19.33674 03 05 36.80 -07 35 49.6                oES077291

Observer details:
291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + 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.
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers
    M. Micheli, D. Koschny, A. Knoefel, M. Busch, E. Schwab.  1.0-m f/4.4
    reflector + 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 SO2                                                 Earth MOID = 0.0694 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 340.06538              (2000.0)            P               Q
n   0.22549771     Peri.  331.85307     -0.14759395     -0.98120530
a   2.6732606      Node   126.37073     +0.93393928     -0.17963245
e   0.7003315      Incl.    8.88088     +0.32553562     +0.07048640
P   4.37           H   21.1           G   0.15           U   8
Residuals in seconds of arc
170914 F51  0.2-  0.2+    170917 F51  0.1+  0.1+    170919 J04  0.3-  0.4-
170914 F51  0.1-  0.0     170918 W85  0.5+  0.1-    170919 J04  0.3-  0.1+
170914 F51  0.3+  0.3-    170918 W85  0.0   0.1-    170919 291  0.2-  0.0
170917 F51  0.0   0.1-    170918 W85  0.3+  0.1+    170919 291  0.1+  0.0
170917 F51  0.0   0.0     170918 W85  0.1+  0.1-    170919 291  0.1+  0.1+
170917 F51  0.2-  0.1+    170919 J04  0.2+  0.2-

Ephemeris:
2017 SO2                 a,e,i = 2.67, 0.70, 9                   q = 0.8011
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 21    01 51 46.3 -01 53 50   0.8663  1.6423   121.8    31.6    23.2
...
2017 09 05    02 23 40.9 -03 48 22   0.6400  1.4902   128.0    32.2    22.4
...
2017 09 13    02 44 59.7 -05 36 44   0.5323  1.4080   129.9    33.3    21.9
...
2017 09 19    03 04 23.6 -07 28 26   0.4582  1.3461   130.1    34.8    21.5
2017 09 20    03 08 00.8 -07 50 04   0.4464  1.3357   130.0    35.2    21.4
2017 09 21    03 11 45.9 -08 12 40   0.4349  1.3254   129.8    35.6    21.4
...
2017 09 27    03 37 36.5 -10 49 47   0.3697  1.2637   127.9    38.7    21.0
...
2017 10 05    04 24 47.1 -15 22 05   0.2959  1.1822   121.6    46.1    20.6
...
2017 10 20    06 58 56.5 -24 34 33   0.2187  1.0365    94.6    73.3    20.4

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S77

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