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  • MPEC 2017-Q26 : 2017 AN19

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    M.P.E.C. 2017-Q26                                Issued 2017 Aug. 18, 14:48 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 AN19
    
                               Revision to MPEC 2017-B02
    
    Additional Observations:
         K17A19N |C2017 08 17.00138 14 12 04.08 -09 55 04.1          20.9 VuEQ026807
         K17A19N |C2017 08 17.00679 14 12 05.94 -09 55 00.9          20.9 VuEQ026807
         K17A19N |C2017 08 17.01232 14 12 07.83 -09 54 57.5          20.9 VuEQ026807
         K17A19N |C2017 08 17.97817 14 17 41.05 -09 46 39.8          21.1 VuEQ026807
         K17A19N |C2017 08 17.98477 14 17 43.33 -09 46 35.7          21.3 VuEQ026807
         K17A19N |C2017 08 17.99136 14 17 45.54 -09 46 31.3          21.1 VuEQ026807
         K17A19N KC2017 08 18.13243 14 18 34.14 -09 45 31.0          21.1 RoEQ026291
         K17A19N KC2017 08 18.13588 14 18 35.29 -09 45 29.5          21.2 RoEQ026291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    170817 807 90.4- 23.6-    170818 291 90.4- 23.8-    MPO399647   +0.034 day
    
    Orbital elements:
    2017 AN19                                           PHA, Earth MOID = 0.0327 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  26.05659              (2000.0)            P               Q
    n   0.53903989     Peri.  329.27780     -0.30220459     +0.89370979
    a   1.4952786      Node   281.34893     -0.79136769     -0.42914480
    e   0.3688635      Incl.   19.76773     -0.53142220     +0.13083407
    P   1.83           H   19.6           G   0.15           U   4
    Residuals in seconds of arc
    170107 G96  0.3+  0.6-    170109 G96  0.0   0.1-    170126 291  0.0   0.1+
    170107 G96  0.6+  0.2+    170109 G96  0.3-  0.1-    170126 291  0.1+  0.1-
    170107 G96  0.9+  0.2+    170109 G96  0.3+  0.4+    170130 691  0.3-  0.1-
    170107 I52  0.1-  0.7-    170109 G96  0.4-  0.4+    170130 691  0.2-  0.4+
    170107 I52  1.1+  0.2-    170109 691  0.5+  0.1+    170130 691  0.3-  0.0
    170107 G96  0.3-  0.1-    170109 691  0.5-  0.2-    170222 474  1.5-  0.7+
    170107 I52  0.7-  0.5-    170109 691  0.0   0.0     170222 474  0.2+  0.1-
    170107 I52  0.1-  0.3-    170116 807  0.3-  0.5+    170222 474  0.0   0.0
    170107 G96  0.1-  0.4-    170116 807  0.2+  0.1+    170817 807  0.4-  0.3-
    170107 G96  0.1+  0.3+    170116 807  0.0   0.1+    170817 807  0.2-  0.1+
    170107 G96  0.6-  1.1-    170120 204  0.4+  0.7-    170817 807  0.2-  0.6+
    170108 291  0.2-  0.2+    170121 204  0.8+  0.1+    170817 807  0.3-  0.6-
    170108 291  0.2-  0.1+    170125 J04  0.3+  0.3-    170817 807  0.2+  0.1-
    170108 291  0.2-  0.0     170125 J04  0.1+  0.1-    170817 807  0.3-  0.8+
    170108 G96  0.2+  0.0     170126 J04  0.2+  0.1+    170818 291  0.5+  0.0
    170108 G96  1.1+  0.8+    170126 291  0.0   0.2+    170818 291  0.1+  0.4-
    
    Ephemeris:
    2017 AN19                a,e,i = 1.50, 0.37, 20                  q = 0.9437
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 07 19    11 35 06.2 -10 43 24   0.7274  0.9438    63.0    73.6    21.4
    ...
    2017 08 03    12 52 44.2 -11 08 29   0.6646  0.9598    65.9    74.9    21.2
    ...
    2017 08 11    13 37 39.3 -10 37 59   0.6453  0.9788    68.2    74.0    21.2
    ...
    2017 08 17    14 12 03.9 -09 55 10   0.6390  0.9971    70.2    72.8    21.2
    2017 08 18    14 17 48.8 -09 46 33   0.6386  1.0005    70.5    72.5    21.2
    2017 08 19    14 23 33.4 -09 37 33   0.6385  1.0040    70.8    72.2    21.2
    ...
    2017 08 25    14 57 47.1 -08 36 35   0.6422  1.0265    73.0    70.3    21.2
    ...
    2017 09 02    15 42 05.2 -07 02 05   0.6586  1.0605    75.8    67.2    21.2
    ...
    2017 09 17    16 58 14.4 -03 55 19   0.7221  1.1335    80.2    60.9    21.3
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-Q26
    

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