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  • MPEC 2018-A78 : 2018 AN3

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    M.P.E.C. 2018-A78                                Issued 2018 Jan. 14, 21:10 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
    
                                       2018 AN3
    
    Observations:
         K18A03N* C2018 01 13.34765 09 19 46.90 +20 43 50.0          20.1 GUEA078G96
         K18A03N  C2018 01 13.35392 09 19 51.66 +20 43 31.2          20.1 GUEA078G96
         K18A03N  C2018 01 13.36022 09 19 56.41 +20 43 12.1          19.8 GUEA078G96
         K18A03N  C2018 01 13.36536 09 20 00.28 +20 42 57.3          20.6 GUEA078G96
         K18A03N  C2018 01 13.42744 09 20 47.17 +20 39 48.6          19.8 GUEA078I52
         K18A03N  C2018 01 13.42840 09 20 47.92 +20 39 45.6          19.8 GUEA078I52
         K18A03N  C2018 01 13.42936 09 20 48.64 +20 39 42.7          19.8 GUEA078I52
         K18A03N  C2018 01 13.43033 09 20 49.37 +20 39 39.6          19.9 GUEA078I52
         K18A03N  C2018 01 13.44641909 21 01.22 +20 38 45.9          20.2 GUEA078H01
         K18A03N  C2018 01 13.45712009 21 09.38 +20 38 12.3          19.6 GUEA078H01
         K18A03N  C2018 01 13.46131509 21 12.58 +20 37 59.1          20.2 GUEA078H01
         K18A03N  C2018 01 13.47071309 21 19.76 +20 37 29.3          20.3 GUEA078H01
         K18A03N KC2018 01 14.01813 09 28 46.98 +20 08 24.1          20.3  UEA078K63
         K18A03N KC2018 01 14.02628 09 28 53.43 +20 07 57.1          19.8  UEA078K63
         K18A03N KC2018 01 14.03426 09 28 59.60 +20 07 31.7          19.9  UEA078K63
         K18A03N  C2018 01 14.35885 09 33 27.03 +19 49 47.8          20.3 GUEA078I52
         K18A03N  C2018 01 14.35926 09 33 27.39 +19 49 46.7          20.8 GUEA078I52
         K18A03N  C2018 01 14.35968 09 33 27.70 +19 49 45.1          20.6 GUEA078I52
         K18A03N IC2018 01 14.40965 09 34 06.15 +19 47 01.4                oEA078711
         K18A03N KC2018 01 14.41288 09 34 08.73 +19 46 47.0                oEA078711
         K18A03N  C2018 01 14.56007 09 36 10.611+19 38 36.01         20.5 wUEA078F51
         K18A03N  C2018 01 14.57239 09 36 20.310+19 37 52.04         20.9 wUEA078F51
         K18A03N  C2018 01 14.58474 09 36 30.042+19 37 07.95         20.4 wUEA078F51
         K18A03N  C2018 01 14.59708 09 36 39.809+19 36 23.34         20.4 wUEA078F51
    
    Observer details:
    711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
        reducer.
    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.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers E. J. Christensen,
        D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
        S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
        1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. G. Matheny,
        J. A. Johnson.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.40-m
        f/3.2 Newtonian reflector + CCD.
    
    Orbital elements:
    2018 AN3                                                 Earth MOID = 0.0391 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 322.16719              (2000.0)            P               Q
    n   0.24953473     Peri.   99.16490     -0.74707182     -0.66473029
    a   2.4987073      Node    39.17363     +0.60727227     -0.68501733
    e   0.5904258      Incl.    0.37768     +0.27037767     -0.29813570
    P   3.95           H   24.6           G   0.15           U   7
    Residuals in seconds of arc
    180113 G96  0.2-  0.2+    180113 H01  0.2-  0.1+    180114 I52  0.3-  0.1-
    180113 G96  0.2-  0.2+    180113 H01  0.2-  0.1+    180114 711  0.5+  4.0+
    180113 G96  0.2+  0.0     180113 H01  0.2-  0.1+    180114 711  1.1+  0.9+
    180113 G96  0.2+  0.4-    180113 H01  0.3-  0.0     180114 F51  0.1-  0.1-
    180113 G96  0.1+  0.1+    180114 K63  0.5-  0.7-    180114 F51  0.0   0.2-
    180113 I52  0.0   0.1+    180114 K63  0.7+  1.3-    180114 F51  0.1-  0.0
    180113 I52  0.3+  0.1+    180114 K63  0.2-  0.7-    180114 F51  0.1+  0.2-
    180113 I52  0.2+  0.2+    180114 I52  0.6-  0.2-
    180113 I52  0.1+  0.1+    180114 I52  0.1-  0.0
    
    Ephemeris:
    2018 AN3                 a,e,i = 2.50, 0.59, 0                   q = 1.0234
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 15    06 20 15.7 +24 50 17   0.2222  1.2028   168.3     9.6    22.4
    ...
    2017 12 30    07 11 23.8 +25 10 45   0.1344  1.1165   171.6     7.4    21.0
    ...
    2018 01 07    08 08 09.7 +24 07 18   0.09903 1.0800   166.8    12.0    20.5
    ...
    2018 01 13    09 15 10.4 +21 01 15   0.08015 1.0579   157.2    21.1    20.3
    2018 01 14    09 28 30.4 +20 10 13   0.07787 1.0547   155.0    23.2    20.3
    2018 01 15    09 42 20.6 +19 12 28   0.07590 1.0516   152.6    25.5    20.3
    ...
    2018 01 21    11 10 00.4 +11 21 32   0.07088 1.0365   136.3    41.0    20.5
    ...
    2018 01 29    12 48 39.8 -00 03 19   0.08158 1.0251   117.5    58.5    21.3
    ...
    2018 02 13    14 21 32.4 -11 04 39   0.1274  1.0322   107.2    66.0    22.5
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-A78
    

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