• MPC Preparation (Info)

  • MPEC 2017-Q71 : 2017 QJ2

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    M.P.E.C. 2017-Q71                                Issued 2017 Aug. 20, 20:36 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 QJ2
    
    Observations:
         K17Q02J* C2017 08 17.39505 21 14 58.328-15 25 37.65         21.6 wLEQ071F51
         K17Q02J  C2017 08 17.40982 21 14 52.680-15 26 42.88         21.5 wLEQ071F51
         K17Q02J  C2017 08 17.42457 21 14 47.007-15 27 47.99         21.6 wLEQ071F51
         K17Q02J _C2017 08 18.37143121 08 39.987-16 46 33.90         21.2 GUEQ071568
         K17Q02J _C2017 08 18.37274421 08 39.339-16 46 41.40         21.1 GUEQ071568
         K17Q02J _C2017 08 18.37373321 08 38.862-16 46 46.83         20.9 GUEQ071568
         K17Q02J KC2017 08 20.16041620 50 54.13 -20 25 22.1          20.9 VuEQ071H21
         K17Q02J KC2017 08 20.16524620 50 49.99 -20 26 07.9          21.4 VuEQ071H21
         K17Q02J KC2017 08 20.17194720 50 44.29 -20 27 12.2          21.4 VuEQ071H21
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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.  1.3-m f/4.0
        astrograph + CCD.
    
    Orbital elements:
    2017 QJ2                                                 Earth MOID = 0.0016 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 348.69190              (2000.0)            P               Q
    n   0.30597984     Peri.  274.75242     +0.51257136     -0.85722082
    a   2.1810930      Node   144.27286     +0.81753486     +0.46962303
    e   0.7258420      Incl.    4.85571     +0.26250210     +0.21125026
    P   3.22           H   25.9           G   0.15           U   6
    Residuals in seconds of arc
    170817 F51  0.4+  0.1-    170818 568  0.4+  0.0     170820 H21  0.3+  0.0
    170817 F51  0.4-  0.1-    170818 568  0.2+  0.1-    170820 H21  0.3-  0.3+
    170817 F51  1.3-  0.0     170818 568  0.3+  0.1+    170820 H21  0.3-  0.1+
    
    Ephemeris:
    2017 QJ2                 a,e,i = 2.18, 0.73, 5                   q = 0.5980
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 07 21    21 45 14.3 -08 31 14   0.4507  1.4303   152.2    19.4    25.9
    ...
    2017 08 05    21 41 31.6 -09 31 20   0.2461  1.2557   167.4    10.1    24.0
    ...
    2017 08 13    21 30 52.4 -11 55 01   0.1464  1.1594   177.2     2.5    22.3
    ...
    2017 08 19    21 03 32.7 -17 49 30   0.07585 1.0862   167.1    12.0    21.2
    2017 08 20    20 52 57.4 -19 58 35   0.06465 1.0739   163.0    16.0    21.0
    2017 08 21    20 37 34.2 -22 56 12   0.05379 1.0616   157.6    21.3    20.7
    ...
    2017 08 27    12 19 09.6 -25 45 38   0.03267 0.9879    45.8   132.8    24.4
    ...
    2017 09 04    10 30 14.8 -02 13 18   0.1203  0.8906    10.9   167.7
    ...
    2017 09 19    10 16 00.4 +02 57 20   0.3156  0.7228    22.4   148.1    30.8
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-Q71
    

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