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  • MPEC 2018-A58 : 2018 AR2

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    M.P.E.C. 2018-A58                                Issued 2018 Jan. 14, 01:25 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 AR2
    
    Observations:
         K18A02R* C2018 01 12.27009 07 25 30.77 +30 12 57.9          19.2 GUEA058G96
         K18A02R  C2018 01 12.27534 07 25 36.03 +30 14 21.9          19.2 GUEA058G96
         K18A02R  C2018 01 12.28057 07 25 41.27 +30 15 44.8          18.9 GUEA058G96
         K18A02R  C2018 01 12.28580 07 25 46.49 +30 17 07.9                UEA058G96
         K18A02R  C2018 01 12.37059 07 27 11.64 +30 39 16.9          19.1 GUEA058I52
         K18A02R  C2018 01 12.37100 07 27 12.04 +30 39 22.7          19.0 GUEA058I52
         K18A02R  C2018 01 12.37142 07 27 12.46 +30 39 29.4          18.7 GUEA058I52
         K18A02R  C2018 01 12.37183 07 27 12.87 +30 39 35.7          18.7 GUEA058I52
         K18A02R KC2018 01 12.90802 07 37 14.18 +32 54 49.1          19.1 GUEA058204
         K18A02R KC2018 01 12.91556 07 37 22.02 +32 56 42.2                UEA058204
         K18A02R KC2018 01 12.92304 07 37 29.77 +32 58 34.0                UEA058204
         K18A02R  C2018 01 13.17741207 42 18.13 +34 00 27.4          19.0 GUEA058H01
         K18A02R  C2018 01 13.18888307 42 30.16 +34 03 16.2          19.2 GUEA058H01
         K18A02R  C2018 01 13.19232807 42 33.75 +34 04 06.7          19.2 GUEA058H01
         K18A02R  C2018 01 13.20612307 42 48.13 +34 07 28.9          18.9 GUEA058H01
         K18A02R  C2018 01 13.22317 07 43 06.70 +34 11 39.3          19.3 GUEA058I52
         K18A02R  C2018 01 13.22529 07 43 08.90 +34 12 09.8          19.1 GUEA058I52
         K18A02R KC2018 01 13.22725 07 43 09.50 +34 12 51.6                oEA058711
         K18A02R  C2018 01 13.22741 07 43 11.13 +34 12 41.7          19.7 GUEA058I52
         K18A02R  C2018 01 13.22759 07 43 11.31 +34 12 43.6          19.1 GUEA058I52
         K18A02R KC2018 01 13.22900 07 43 11.28 +34 13 16.5                oEA058711
         K18A02R KC2018 01 13.23079 07 43 13.13 +34 13 42.7                oEA058711
         K18A02R KC2018 01 13.23256 07 43 14.97 +34 14 08.2                oEA058711
         K18A02R KC2018 01 13.82147 07 54 16.53 +36 26 43.9          19.4 RUEA058K51
         K18A02R KC2018 01 13.82264 07 54 17.81 +36 26 59.7          19.5 RUEA058K51
         K18A02R KC2018 01 13.82380 07 54 19.05 +36 27 15.6          19.4 RUEA058K51
         K18A02R KC2018 01 13.83117 07 54 30.04 +36 29 00.4          19.0 RUEA058Z84
         K18A02R KC2018 01 13.83352 07 54 32.58 +36 29 32.7          18.9 RUEA058Z84
         K18A02R KC2018 01 13.83562 07 54 34.92 +36 30 01.0          18.8 RUEA058Z84
         K18A02R KC2018 01 13.86669 07 55 05.41 +36 36 58.8          18.5  UEA058K63
         K18A02R KC2018 01 13.87469 07 55 13.85 +36 38 45.5          19.4  UEA058K63
         K18A02R KC2018 01 13.91242 07 55 52.89 +36 47 03.5                qEA058595
         K18A02R KC2018 01 13.91585 07 55 56.52 +36 47 47.7          19.2 VqEA058595
         K18A02R KC2018 01 13.92271 07 56 03.71 +36 49 18.4                qEA058595
         K18A02R KC2018 01 13.97010 07 56 53.85 +36 59 41.9          19.5 RqEA058160
         K18A02R KC2018 01 13.97234 07 56 56.19 +37 00 10.5          18.8 RqEA058160
         K18A02R KC2018 01 13.97348 07 56 57.36 +37 00 25.0          19.1 RqEA058160
         K18A02R KC2018 01 13.97460 07 56 58.53 +37 00 39.8          18.8 RqEA058160
         K18A02R KC2018 01 13.97685 07 57 00.87 +37 01 08.7          18.8 RqEA058160
    
    Observer details:
    160 Castelmartini.  Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
        Measurer E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    595 Farra d'Isonzo.  Observers E. Pettarin, F. Piani.  Measurer E. Pettarin.
        0.61-m f/4.0 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.
    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.  Observer R. G. Matheny.
        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.
    K51 Osservatorio del Celado, Castello Tesino.  Observers G. Favero, R. Furgoni.
        Measurer R. Furgoni.  0.80-m f/4 reflector + CCD.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.
    Z84 Calar Alto-Schmidt.  Observer E. Schwab.  Measurers E. Schwab, M. Micheli,
        D. Koschny.  0.8-m f/3 Schmidt + CCD.
    
    Orbital elements:
    2018 AR2                                                 Earth MOID = 0.0387 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 303.67763              (2000.0)            P               Q
    n   0.46098659     Peri.  352.62732     -0.21904178     -0.96156030
    a   1.6596271      Node   109.91470     +0.90395159     -0.26387246
    e   0.3859953      Incl.   10.14441     +0.36727677     +0.07598098
    P   2.14           H   25.6           G   0.15           U   7
    Residuals in seconds of arc
    180112 G96  0.2+  0.2-    180113 H01  0.1+  0.1-    180113 Z84  0.1-  0.1-
    180112 G96  0.1+  0.1+    180113 H01  0.1+  0.1+    180113 Z84  0.3-  0.1+
    180112 G96  0.1+  0.3-    180113 I52  0.2-  0.0     180113 Z84  0.4+  0.3-
    180112 G96  0.2-  0.4-    180113 I52  0.1-  0.4-    180113 K63  0.0   0.1-
    180112 I52  0.3+  0.4+    180113 711  0.5-  0.6+    180113 K63  0.5-  0.6-
    180112 I52  0.1+  0.2-    180113 I52  0.3+  0.7+    180113 595  0.1-  0.2+
    180112 I52  0.0   0.0     180113 I52  0.2+  0.1-    180113 595  0.3+  0.7-
    180112 I52  0.0   0.0     180113 711  0.8-  0.2+    180113 595  0.2+  0.1-
    180112 204  0.0   0.1-    180113 711  0.7-  0.5+    180113 160  0.2+  0.3+
    180112 204  0.1+  0.0     180113 711  0.4-  0.4+    180113 160  0.3+  0.1+
    180112 204  0.1-  0.1-    180113 K51  0.1-  0.1-    180113 160  0.1+  0.1-
    180113 H01  0.1+  0.1+    180113 K51  0.2+  0.1-    180113 160  0.1+  0.2+
    180113 H01  0.2+  0.0     180113 K51  0.0   0.0     180113 160  0.1+  0.2+
    
    Ephemeris:
    2018 AR2                 a,e,i = 1.66, 0.39, 10                  q = 1.0190
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 15    03 48 45.2 -35 02 31   0.1138  1.0409   117.0    57.4    23.0
    ...
    2017 12 30    04 43 25.0 -21 49 23   0.05940 1.0205   127.3    50.0    21.4
    ...
    2018 01 07    06 00 50.2 +04 16 36   0.03962 1.0194   155.1    23.9    19.8
    ...
    2018 01 13    07 38 49.8 +33 18 04   0.04046 1.0232   168.3    11.3    19.4
    2018 01 14    07 57 25.1 +37 06 19   0.04219 1.0242   163.9    15.4    19.6
    2018 01 15    08 16 02.2 +40 23 40   0.04428 1.0253   159.8    19.4    19.9
    ...
    2018 01 21    09 54 48.1 +51 04 21   0.06202 1.0342   142.9    35.0    21.1
    ...
    2018 01 29    11 11 04.0 +53 43 14   0.09227 1.0517   134.6    41.8    22.2
    ...
    2018 02 13    11 55 56.1 +52 14 37   0.1554  1.0997   133.3    40.8    23.4
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-A58
    

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