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  • MPEC 2017-C17 : 2004 AY1

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    M.P.E.C. 2017-C17                                Issued 2017 Feb. 2, 14:47 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
    
                                       2004 AY1
    
                               Revision to MPEC 2004-A57
    
    Additional Observations:
         K04A01Y  C2017 01 31.46880 11 05 54.408+25 33 24.86         21.5 wLEC017F51
         K04A01Y  C2017 01 31.47997 11 05 52.302+25 33 31.14         21.1 wLEC017F51
         K04A01Y  C2017 01 31.49123 11 05 50.195+25 33 37.49         21.2 wLEC017F51
         K04A01Y  C2017 01 31.50242 11 05 48.088+25 33 43.69         21.1 wLEC017F51
         K04A01Y KC2017 02 01.52018 11 02 44.75 +25 42 31.6          20.8 RoEC017291
         K04A01Y KC2017 02 01.52183 11 02 44.43 +25 42 32.7          21.0 RoEC017291
         K04A01Y KC2017 02 01.52349 11 02 44.11 +25 42 33.2          20.9 RoEC017291
         K04A01Y _C2017 02 01.55755811 02 38.663+25 42 56.66         20.8 GUEC017568
         K04A01Y _C2017 02 01.58175511 02 34.124+25 43 08.50         20.8 GUEC017568
         K04A01Y  C2017 02 01.58344 11 02 33.835+25 43 09.16         20.9 wLEC017F51
         K04A01Y _C2017 02 01.58372711 02 33.754+25 43 09.48         20.8 GUEC017568
         K04A01Y  C2017 02 01.59633 11 02 31.423+25 43 15.58         21.4 wLEC017F51
         K04A01Y  C2017 02 01.60920 11 02 28.975+25 43 22.07         20.8 wLEC017F51
         K04A01Y  C2017 02 01.63812 11 02 23.638+25 43 35.36         21.0 wLEC017F51
         K04A01Y HC2017 02 02.35462 11 00 17.10 +25 49 24.2          20.9 RoEC017691
         K04A01Y KC2017 02 02.35721 11 00 16.62 +25 49 25.1          21.2 RoEC017291
         K04A01Y KC2017 02 02.35890 11 00 16.30 +25 49 26.0          21.1 RoEC017291
         K04A01Y KC2017 02 02.36058 11 00 16.01 +25 49 27.1          21.3 RoEC017291
         K04A01Y HC2017 02 02.36060 11 00 15.99 +25 49 27.2          21.0 RoEC017691
    
    Observer details:
    291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  1.8-m f/2.7 reflector + CCD.
    568 Mauna Kea.  Observers R. J. Wainscoat, C. Wipper.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
    691 Steward Observatory, Kitt Peak.  Observer A. F. Tubbiolo.  0.9-m f/3
        reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
        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.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    170131 F51   13+   10-    170202 691   13+    9-    MPO 62467   -8.0 day
    
    Orbital elements:
    2004 AY1                                                 Earth MOID = 0.0824 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M  37.93690              (2000.0)            P               Q
    n   0.38060787     Peri.    2.14909     +0.74081483     -0.66884946
    a   1.8857504      Node    40.05958     +0.61483726     +0.63808431
    e   0.5728946      Incl.    5.52082     +0.27049683     +0.38142996
    P   2.59           H   21.2           G   0.15           U   3
    Residuals in seconds of arc
    040113 704  0.6+  0.7+    040114 J95  0.0   0.9-    170131 F51  0.1+  0.3-
    040113 704  0.7+  0.2+    040114 J95  0.4+  0.3-    170131 F51  0.0   0.3-
    040113 704  0.1-  0.0     040114 J95 (2.0-  0.3-)   170131 F51  0.2+  0.2-
    040113 704  0.3+  0.1+    040116 926  0.0   0.1+    170131 F51  0.2+  0.2-
    040113 704  0.4+  0.0     040116 926  0.1+  0.2+    170201 291  0.0   0.1-
    040114 704  0.0   0.2+    040116 926  0.2+  0.2+    170201 291  0.2-  0.2+
    040114 704  1.3-  0.1-    040116 J95  0.1+  0.1+    170201 291  0.4-  0.1-
    040114 704  0.0   0.2+    040116 J95  0.1+  0.3+    170201 568  0.0   0.2-
    040114 704  0.4+  0.9+    040116 J95  0.2-  0.3+    170201 568  0.0   0.2-
    040114 704  1.0-  0.4-    040121 176  0.0   0.3-    170201 F51  0.1+  0.1-
    040114 704  0.2-  0.4-    040121 176  0.0   0.3-    170201 568  0.0   0.2-
    040114 704  0.4+  0.3+    040121 176  0.1+  0.3-    170201 F51  0.1+  0.1+
    040114 704  0.1+  0.2-    040121 176  0.3+  0.1-    170201 F51  0.5-  0.4+
    040114 704  0.1+  0.5+    040121 176  0.4+  0.1-    170201 F51  0.2+  0.0
    040114 704  0.6+  0.7+    040121 176  0.5+  0.0     170202 691  0.3-  0.4+
    040114 704  0.3-  0.5+    040130 540  0.8+  0.7+    170202 291  0.3-  0.0
    040114 704  0.5-  0.3+    040130 540  0.2-  0.1-    170202 291  0.3-  0.1+
    040114 704  1.2+  0.8+    040210 926  0.0   1.0+    170202 291  0.0   0.4+
    040114 704  0.1-  0.2+    040210 926  1.3-  0.1+    170202 691  0.3-  0.4+
    040114 J95  0.9-  0.4-    040210 926  0.9+  0.2+
    
    Ephemeris:
    2004 AY1                 a,e,i = 1.89, 0.57, 6                   q = 0.8054
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 01 03    12 19 37.3 +18 50 25   0.3173  1.1084   105.0    59.0    21.0
    ...
    2017 01 18    11 44 47.2 +22 47 52   0.3598  1.2382   128.0    38.8    21.0
    ...
    2017 01 26    11 22 11.0 +24 35 46   0.3887  1.3082   140.5    28.6    21.0
    ...
    2017 02 01    11 04 18.8 +25 38 07   0.4162  1.3605   149.5    21.5    21.0
    2017 02 02    11 01 20.1 +25 46 35   0.4213  1.3692   151.0    20.5    21.0
    2017 02 03    10 58 22.2 +25 54 26   0.4267  1.3779   152.3    19.4    21.0
    ...
    2017 02 09    10 41 06.4 +26 28 58   0.4627  1.4296   159.8    13.8    21.1
    ...
    2017 02 17    10 20 34.9 +26 42 39   0.5217  1.4977   164.7    10.0    21.3
    ...
    2017 03 04    09 53 26.5 +25 52 06   0.6674  1.6217   155.2    14.9    22.2
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-C17
    

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