• MPC Preparation (Info)

  • MPEC 2018-F148: 2017 OD20

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2018-F147 Read MPEC 2018-F149


    M.P.E.C. 2018-F148                               Issued 2018 Mar. 29, 10:32 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 OD20
    
                               Revision to MPEC 2017-P06
    
    Additional Observations:
         K17O20D  C2013 08 26.52247 23 11 53.140+12 53 05.56         21.7 GUEF148F51
         K17O20D  C2013 08 26.53210 23 11 52.779+12 53 11.68         21.6 GUEF148F51
         K17O20D  C2013 08 26.56756 23 11 51.454+12 53 34.55         22.1 GUEF148F51
         K17O20D  C2013 08 26.57813 23 11 51.081+12 53 41.14         21.5 GUEF148F51
         K17O20D  C2013 09 03.37455 23 07 54.101+13 57 23.30         20.3 GUEF148F51
         K17O20D  C2013 09 03.38594 23 07 53.588+13 57 27.02         20.6 GUEF148F51
         K17O20D  C2013 09 10.36507 23 03 53.744+14 18 21.65         21.8 GUEF148F51
         K17O20D  C2013 09 10.37573 23 03 53.255+14 18 22.28         21.2 GUEF148F51
         K17O20D  C2013 09 23.32193 22 58 37.103+13 45 02.10         21.7 GUEF148F51
         K17O20D  C2013 09 23.33354 22 58 36.831+13 44 58.57         21.8 GUEF148F51
         K17O20D  C2015 07 30.43212 22 33 58.298+00 40 06.51         21.5 GUEF148F51
         K17O20D  C2015 07 30.44397 22 33 58.454+00 40 23.14         21.2 GUEF148F51
         K17O20D  C2015 07 30.45582 22 33 58.589+00 40 39.90         20.8 GUEF148F51
         K17O20D  C2015 07 30.46767 22 33 58.733+00 40 56.83         21.5 GUEF148F51
         K17O20D  C2015 08 06.49871 22 35 37.942+03 18 57.68         21.2 GUEF148F51
         K17O20D  C2015 08 06.51105 22 35 37.826+03 19 13.11         21.5 GUEF148F51
         K17O20D  C2015 08 06.52338 22 35 37.721+03 19 28.87         21.0 GUEF148F51
         K17O20D  C2015 08 06.53569 22 35 37.621+03 19 44.84         20.6 GUEF148F51
         K17O20D  C2015 08 07.48098 22 35 41.456+03 39 38.04         21.4 GUEF148F51
         K17O20D  C2015 08 07.49297 22 35 41.328+03 39 52.91         21.5 GUEF148F51
         K17O20D  C2015 08 07.50497 22 35 41.176+03 40 07.92         21.6 GUEF148F51
         K17O20D  C2015 09 12.29443 22 24 06.803+09 56 20.26         21.2 GUEF148F51
         K17O20D  C2015 09 12.30692 22 24 06.523+09 56 20.51         21.2 GUEF148F51
         K17O20D  C2015 09 12.31940 22 24 06.236+09 56 20.73         21.4 GUEF148F51
         K17O20D  C2015 09 12.33186 22 24 05.943+09 56 20.89         21.3 GUEF148F51
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers N. Primak, A. Schultz, S. Watters,
        J. Thiel, T. Goggia, M. Willman.  Measurers R. Weryk, C. Waters,
        R. Wainscoat.  1.8-m Ritchey-Chretien + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    130826 F51 0.34+ 0.13+    150912 F51 0.16+ 0.08+    MPO435134   -0.0044 day
    
    Orbital elements:
    2017 OD20                                                Earth MOID = 0.2358 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 110.34976              (2000.0)            P               Q
    n   0.49086313     Peri.   31.23462     +0.76571566     +0.63857450
    a   1.5915823      Node   288.88061     -0.60558722     +0.67556279
    e   0.2172269      Incl.    4.65720     -0.21666484     +0.36856143
    P   2.01           H   22.8           G   0.15           U   2
    Residuals in seconds of arc
    130826 F51  0.0   0.1-    150912 F51  0.1-  0.1+    170803 H21  0.3-  0.1+
    130826 F51  0.1+  0.2-    150912 F51  0.0   0.1+    170803 H21  0.2+  0.0
    130826 F51  0.0   0.1+    150912 F51  0.0   0.1+    170818 807  0.8+  0.1-
    130826 F51  0.1+  0.0     150912 F51  0.0   0.0     170818 807  0.4+  0.2+
    130903 F51  0.0   0.1+    170727 F51  0.2-  0.0     170818 807  0.4-  0.0
    130903 F51  0.2+  0.0     170727 F51  0.0   0.1+    170824 754  0.4+  0.8+
    130910 F51  0.0   0.1-    170727 F51  0.0   0.1+    170824 754  0.1+  0.4+
    130910 F51  0.2-  0.1-    170730 H21  0.2+  0.1+    170824 754  0.1-  0.1+
    130923 F51  0.0   0.0     170730 H21  0.1+  0.0     170913 I52  0.2+  1.1+
    130923 F51  0.0   0.1-    170730 H21  0.0   0.0     170913 I52  0.0   0.8-
    150730 F51  0.0   0.0     170730 568  0.0   0.0     170913 I52  0.7-  0.6-
    150730 F51  0.1+  0.1-    170730 568  0.0   0.1-    170913 I52  0.9-  0.3-
    150730 F51  0.1-  0.1-    170730 568  0.0   0.1-    170921 I52  0.4-  0.2+
    150730 F51  0.0   0.1+    170731 H21  0.2-  0.1+    170921 I52  0.5+  0.3+
    150806 F51  0.1+  0.1+    170731 H21  0.2-  0.2+    170921 I52  0.4+  0.5+
    150806 F51  0.1-  0.2-    170731 H21  0.1+  0.2-    170921 I52 (3.6+  0.6+)
    150806 F51  0.0   0.2-    170801 K88  0.6+  0.1-    170924 H21  0.0   0.0
    150806 F51  0.0   0.1+    170801 K88  0.1+  0.2+    170924 H21  0.1+  0.1-
    150807 F51  0.0   0.0     170801 734  0.5+  0.1+    170924 H21  0.1-  0.2+
    150807 F51  0.1+  0.2-    170801 734  0.4-  0.1-
    150807 F51  0.1-  0.2-    170801 734  0.8-  0.1-
    
    Ephemeris:
    2017 OD20                a,e,i = 1.59, 0.22, 5                   q = 1.2458
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 02 27    03 02 28.4 +19 21 51   1.7627  1.7112    70.6    33.1    26.6
    ...
    2018 03 14    03 37 47.6 +20 58 55   1.9387  1.7486    64.0    30.7    26.8
    ...
    2018 03 22    03 56 48.5 +21 42 03   2.0302  1.7674    60.5    29.4    26.9
    ...
    2018 03 28    04 11 08.1 +22 10 02   2.0973  1.7810    57.9    28.3    26.9
    2018 03 29    04 13 31.6 +22 14 18   2.1083  1.7832    57.5    28.2    26.9
    2018 03 30    04 15 55.2 +22 18 28   2.1193  1.7854    57.1    28.0    26.9
    ...
    2018 04 05    04 30 17.8 +22 41 04   2.1844  1.7982    54.5    26.9    27.0
    ...
    2018 04 13    04 49 30.5 +23 04 38   2.2686  1.8146    51.1    25.5    27.0
    ...
    2018 04 28    05 25 34.6 +23 27 44   2.4168  1.8427    44.7    22.6    27.1
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F148
    

    Read MPEC 2018-F147 Read MPEC 2018-F149


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)