• MPC Preparation (Info)

  • MPEC 2017-O66 : 2017 OS18

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    M.P.E.C. 2017-O66                                Issued 2017 July 30, 00:31 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 OS18
    
    Observations:
         K17O18S* C2017 07 24.48653 21 44 54.95 -20 10 13.9          18.8 oLEO066T08
         K17O18S  C2017 07 24.48701 21 44 55.09 -20 10 14.2          18.8 oLEO066T08
         K17O18S  C2017 07 24.49697 21 44 55.23 -20 10 19.3          18.8 oLEO066T08
         K17O18S  C2017 07 24.51346 21 44 55.41 -20 10 30.7          18.8 oLEO066T08
         K17O18S  C2017 07 24.51930 21 44 55.72 -20 10 32.8          19.2 oLEO066T08
         K17O18S  C2017 07 24.52027 21 44 55.66 -20 10 32.7          19.0 oLEO066T08
         K17O18S KC2017 07 25.31648 21 45 18.67 -20 18 44.4          19.4 GUEO066H21
         K17O18S HC2017 07 25.31997 21 45 18.74 -20 18 46.9                UEO066H21
         K17O18S KC2017 07 25.32035 21 45 18.94 -20 18 46.1          19.6 RqEO066H36
         K17O18S KC2017 07 25.32346 21 45 18.80 -20 18 48.1          19.2 GUEO066H21
         K17O18S KC2017 07 25.33824 21 45 19.27 -20 18 56.9          19.3 RqEO066H36
         K17O18S  C2017 07 25.39660321 45 19.71 -20 19 02.4          19.0 GUEO066W86
         K17O18S  C2017 07 25.39981821 45 19.78 -20 19 04.1          19.0 GUEO066W86
         K17O18S  C2017 07 25.40303121 45 19.84 -20 19 05.8          18.9 GUEO066W86
         K17O18S  C2017 07 25.40624621 45 19.90 -20 19 07.6          18.9 GUEO066W86
         K17O18S KC2017 07 25.40979 21 45 20.63 -20 19 39.3          19.2 RqEO066H36
         K17O18S  C2017 07 25.46492 21 45 23.161-20 20 07.78         19.1 wLEO066F51
         K17O18S  C2017 07 25.47513 21 45 23.330-20 20 14.08         19.1 wLEO066F51
         K17O18S  C2017 07 25.48535 21 45 23.496-20 20 20.34         19.1 wLEO066F51
         K17O18S  C2017 07 25.49556 21 45 23.660-20 20 26.47         19.1 wLEO066F51
         K17O18S KC2017 07 25.99883 21 45 37.06 -20 25 37.7                oEO066K88
         K17O18S KC2017 07 26.00529 21 45 37.16 -20 25 41.8          18.6 RoEO066K88
         K17O18S  C2017 07 28.45920 21 46 33.922-20 50 00.86         19.4 wLEO066F51
         K17O18S  C2017 07 28.47159 21 46 34.034-20 50 08.28         19.4 wLEO066F51
         K17O18S  C2017 07 28.48395 21 46 34.143-20 50 15.61         19.3 wLEO066F51
         K17O18S  C2017 07 28.49634 21 46 34.247-20 50 22.77         19.3 wLEO066F51
         K17O18S KC2017 07 29.24428 21 46 49.05 -20 57 47.6          19.1 VqEO066W25
         K17O18S KC2017 07 29.26649 21 46 49.27 -20 58 00.8          19.3 VqEO066W25
         K17O18S  C2017 07 29.47104 21 46 52.975-20 59 54.93         19.1 wLEO066F51
         K17O18S  C2017 07 29.48206 21 46 53.048-21 00 01.40         19.0 wLEO066F51
         K17O18S  C2017 07 29.49307 21 46 53.125-21 00 07.85         19.0 wLEO066F51
         K17O18S  C2017 07 29.50410 21 46 53.200-21 00 14.19         19.1 wLEO066F51
    
    Observer details:
    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 L. Buzzi, T. Linder, S. Foglia, T. Vorobjov.  0.61-m f/4.0
        astrograph + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + 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.
    W25 RMS Observatory, Cincinnati.  Observer B. Rowe.  0.35-m Schmidt-Cassegrain
        + CCD.
    W86 Cerro Tololo-LCO B.  Observers T. Lister, S. Greenstreet, E. Gomez,
        J. MacFarlane.  Measurer J. MacFarlane.  1.0-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2017 OS18                                                Earth MOID = 0.2824 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  22.19116              (2000.0)            P               Q
    n   0.30646812     Peri.  177.72706     +0.21722009     +0.97353501
    a   2.1787756      Node   104.81267     -0.89673008     +0.22776872
    e   0.4038629      Incl.    4.21331     -0.38560419     +0.01873501
    P   3.22           H   20.0           G   0.15           U   7
    Residuals in seconds of arc
    170724 T08  0.7-  0.1-    170725 W86  0.1-  0.2-    170728 F51  0.2+  0.1+
    170724 T08  1.1+  0.1-    170725 W86  0.0   0.1-    170728 F51  0.2+  0.1+
    170724 T08  0.5+  0.9+    170725 W86  0.1-  0.1+    170728 F51  0.1+  0.1+
    170724 T08  1.3-  0.5-    170725 W86  0.2-  0.1+    170728 F51  0.0   0.3+
    170724 T08  1.5+  0.9+    170725 H36  0.5+  0.3-    170729 W25  0.3-  0.1-
    170724 T08  0.4+  1.6+    170725 F51  0.1-  0.0     170729 W25  0.2-  0.1-
    170725 H21  0.2+  0.9-    170725 F51  0.1-  0.0     170729 F51  0.0   0.1-
    170725 H21  0.3+  1.3-    170725 F51  0.1-  0.0     170729 F51  0.0   0.1-
    170725 H36  0.2+  0.4-    170725 F51  0.1-  0.0     170729 F51  0.0   0.1-
    170725 H21  0.2+  0.4-    170725 K88  0.4-  0.2+    170729 F51  0.0   0.0
    170725 H36  0.2+  0.4-    170726 K88  0.6-  0.0
    
    Ephemeris:
    2017 OS18                a,e,i = 2.18, 0.40, 4                   q = 1.2988
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 06 30    21 17 56.4 -16 33 14   0.3406  1.3003   141.4    29.2    19.5
    ...
    2017 07 15    21 38 02.9 -18 35 07   0.3289  1.3149   151.5    21.7    19.2
    ...
    2017 07 23    21 44 07.5 -19 54 51   0.3317  1.3288   157.7    16.9    19.1
    ...
    2017 07 29    21 46 44.1 -20 55 02   0.3384  1.3419   162.5    13.1    19.1
    2017 07 30    21 47 01.9 -21 04 45   0.3399  1.3443   163.3    12.5    19.0
    2017 07 31    21 47 17.7 -21 14 19   0.3415  1.3468   164.1    11.9    19.0
    ...
    2017 08 06    21 48 14.3 -22 07 48   0.3539  1.3627   168.3     8.7    19.0
    ...
    2017 08 14    21 48 19.4 -23 04 28   0.3774  1.3868   170.7     6.7    19.1
    ...
    2017 08 29    21 48 00.8 -23 50 28   0.4446  1.4402   162.5    12.2    19.8
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-O66
    

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