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  • MPEC 2018-A87 : 2018 AE4

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    M.P.E.C. 2018-A87                                Issued 2018 Jan. 15, 18:26 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 AE4
    
    Observations:
         K18A04E* C2018 01 13.46201 12 13 44.28 +23 29 39.4          19.0 GUEA087G96
         K18A04E  C2018 01 13.46718 12 13 29.75 +23 27 44.7          19.9 GUEA087G96
         K18A04E  C2018 01 13.47235 12 13 15.17 +23 25 48.6          19.5 GUEA087G96
         K18A04E  C2018 01 13.53020 12 10 34.11 +23 04 05.7          19.5 GUEA087I52
         K18A04E  C2018 01 13.53058 12 10 33.06 +23 03 56.7          19.1 GUEA087I52
         K18A04E  C2018 01 13.53096 12 10 32.03 +23 03 48.5          19.1 GUEA087I52
         K18A04E  C2018 01 13.53133 12 10 30.99 +23 03 40.0          19.0 GUEA087I52
         K18A04E  C2018 01 13.54622 12 09 50.14 +22 58 03.4          18.6 GUEA087I52
         K18A04E  C2018 01 13.54659 12 09 49.05 +22 57 55.7          18.8 GUEA087I52
         K18A04E  C2018 01 13.54698 12 09 47.99 +22 57 46.4          19.6 GUEA087I52
         K18A04E  C2018 01 13.54736 12 09 46.95 +22 57 38.4          19.6 GUEA087I52
         K18A04E KC2018 01 14.09888011 47 49.75 +19 39 02.7          19.2 VSEA087L01
         K18A04E KC2018 01 14.10097711 47 44.98 +19 38 19.6          19.3 VSEA087L01
         K18A04E KC2018 01 14.10307311 47 40.28 +19 37 37.3          19.1 VSEA087L01
         K18A04E KC2018 01 14.16199 11 45 29.10 +19 17 35.7                UEA087204
         K18A04E KC2018 01 14.17244 11 45 05.91 +19 14 03.7          19.2 GUEA087204
         K18A04E KC2018 01 14.18290 11 44 42.78 +19 10 31.8                UEA087204
         K18A04E KC2018 01 14.45853 11 35 25.29 +17 41 23.2                oEA087711
         K18A04E KC2018 01 14.46023 11 35 21.81 +17 40 51.5                oEA087711
         K18A04E KC2018 01 14.46293 11 35 16.29 +17 40 00.2                oEA087711
         K18A04E KC2018 01 14.46468 11 35 12.78 +17 39 26.4                oEA087711
         K18A04E  C2018 01 15.53259 11 05 59.93 +12 38 44.3          19.4 GUEA087I52
         K18A04E  C2018 01 15.53705 11 05 53.49 +12 37 37.8          19.3 GUEA087I52
         K18A04E  C2018 01 15.53729 11 05 53.14 +12 37 34.2          19.3 GUEA087I52
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector
        + CCD.
    711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
        reducer.
    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.
    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.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2018 AE4                                                 Earth MOID = 0.0184 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 334.36742              (2000.0)            P               Q
    n   0.25827165     Peri.  131.15818     +0.34140110     -0.92655758
    a   2.4420331      Node   298.22344     +0.79975149     +0.37462590
    e   0.6377812      Incl.   10.32432     +0.49380446     +0.03385987
    P   3.82           H   24.8           G   0.15           U   5
    Residuals in seconds of arc
    180113 G96  0.2-  1.4-    180113 I52  0.4-  0.0     180114 204  0.1+  0.1+
    180113 G96  0.2+  0.1+    180113 I52  0.3-  0.5-    180114 711  0.1+  1.3-
    180113 G96  0.4-  0.2+    180113 I52  0.3-  0.1+    180114 711  0.2-  0.6-
    180113 I52  0.0   0.2+    180114 L01  0.2+  0.1+    180114 711  0.6-  0.4-
    180113 I52  0.1-  0.2-    180114 L01  0.0   0.2-    180114 711  0.0   0.8-
    180113 I52  0.2+  0.1+    180114 L01  0.8+  0.2+    180115 I52  0.1+  0.2+
    180113 I52  0.1-  0.0     180114 204  0.4+  0.1+    180115 I52  0.0   0.2+
    180113 I52  0.7+  0.6-    180114 204  0.3+  0.1+    180115 I52  0.0   0.1+
    
    Ephemeris:
    2018 AE4                 a,e,i = 2.44, 0.64, 10                  q = 0.8846
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 16    20 24 12.6 +13 57 57   0.2037  0.8863    55.9   113.1    25.4
    ...
    2017 12 31    19 56 16.7 +21 40 17   0.09092 0.9255    48.5   127.3    24.9
    ...
    2018 01 08    17 56 31.6 +34 46 08   0.03752 0.9652    60.1   118.0    22.3
    ...
    2018 01 14    11 51 28.2 +20 15 19   0.03346 1.0017   122.0    56.4    19.5
    2018 01 15    11 19 24.5 +15 00 33   0.03839 1.0083   129.1    49.2    19.6
    2018 01 16    10 56 06.4 +10 51 27   0.04409 1.0150   134.3    43.9    19.7
    ...
    2018 01 22    09 53 15.5 -00 51 16   0.08518 1.0577   148.4    29.2    20.9
    ...
    2018 01 30    09 26 43.8 -05 01 42   0.1465  1.1199   155.3    21.5    21.9
    ...
    2018 02 14    09 09 45.9 -06 00 13   0.2750  1.2474   158.5    16.9    23.4
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-A87
    

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