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  • MPEC 2018-G31 : 2018 GJ

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    M.P.E.C. 2018-G31                                Issued 2018 Apr. 8, 04:18 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 GJ
    
    Observations:
         K18G00J* C2018 04 05.31738 13 21 53.36 +47 16 34.2          21.0 GUEG031G96
         K18G00J  C2018 04 05.32268 13 21 48.22 +47 16 12.1          21.3 GUEG031G96
         K18G00J  C2018 04 05.32798 13 21 43.10 +47 15 50.5          21.1 GUEG031G96
         K18G00J  C2018 04 05.33330 13 21 38.09 +47 15 27.1                UEG031G96
         K18G00J  C2018 04 05.35118713 21 20.46 +47 14 10.2          20.6 GUEG031H01
         K18G00J  C2018 04 05.36228313 21 09.77 +47 13 22.8          21.3 GUEG031H01
         K18G00J  C2018 04 05.36671813 21 05.46 +47 13 03.6          21.3 GUEG031H01
         K18G00J  C2018 04 05.37385813 20 58.58 +47 12 33.1          21.1 GUEG031H01
         K18G00J  C2018 04 05.44582 13 19 49.44 +47 07 19.0          21.4 GUEG031G96
         K18G00J  C2018 04 05.44645 13 19 48.81 +47 07 16.3          22.0 GUEG031G96
         K18G00J  C2018 04 05.44709 13 19 48.14 +47 07 13.2          22.0 GUEG031G96
         K18G00J  C2018 04 06.28415 13 06 28.44 +46 01 10.4                UEG031G96
         K18G00J  C2018 04 06.28542 13 06 27.22 +46 01 03.9          20.8 GUEG031G96
         K18G00J  C2018 04 06.28606 13 06 26.56 +46 01 00.7          21.0 GUEG031G96
         K18G00J  C2018 04 06.29748 13 06 15.17 +46 00 02.6          20.2 GUEG031I52
         K18G00J  C2018 04 06.29824 13 06 14.30 +45 59 57.3          21.2 GUEG031I52
         K18G00J  C2018 04 06.29900 13 06 13.50 +45 59 53.2          20.9 GUEG031I52
         K18G00J  C2018 04 06.29976 13 06 12.63 +45 59 48.9          20.6 GUEG031I52
         K18G00J  C2018 04 06.30052 13 06 11.87 +45 59 45.3          20.1 GUEG031I52
         K18G00J  C2018 04 06.30661 13 06 05.68 +45 59 13.7          20.0 GUEG031I52
         K18G00J  C2018 04 06.30966 13 06 02.55 +45 58 58.7          19.9 GUEG031I52
         K18G00J KC2018 04 07.92199 12 38 52.24 +43 12 57.9          21.1 VSEG031L01
         K18G00J KC2018 04 07.92701 12 38 46.88 +43 12 22.6          21.2 VSEG031L01
         K18G00J KC2018 04 07.93308 12 38 40.54 +43 11 38.5          20.9 VSEG031L01
         K18G00J  C2018 04 08.13222912 35 16.87 +42 47 18.7          20.4 GUEG031H01
         K18G00J  C2018 04 08.13591212 35 12.95 +42 46 52.0          20.9 GUEG031H01
         K18G00J  C2018 04 08.14556012 35 02.70 +42 45 41.6          21.0 GUEG031H01
         K18G00J  C2018 04 08.15509912 34 52.54 +42 44 31.7          19.9 GUEG031H01
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
        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. 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 B. M. Africano.
        Measurers B. M. Africano, 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. 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 GJ                                                  Earth MOID = 0.0671 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 283.86886              (2000.0)            P               Q
    n   0.80271908     Peri.  251.56057     -0.01357489     +0.97531510
    a   1.1466397      Node    21.63759     -0.53007065     +0.17988017
    e   0.1480845      Incl.   36.70680     -0.84784482     -0.12807650
    P   1.23           H   23.4           G   0.15           U   8
    Residuals in seconds of arc
    180405 G96  0.2+  0.6-    180405 G96  0.7-  0.2+    180406 I52  1.4-  0.6+
    180405 G96  0.2-  0.5-    180406 G96  0.3-  0.2+    180407 L01  0.1-  0.5-
    180405 G96  0.2-  0.1+    180406 G96  0.3+  0.3+    180407 L01  0.3-  0.2+
    180405 G96  1.0+  0.9-    180406 G96  0.2+  0.4+    180407 L01  1.0+  0.4-
    180405 H01  0.1+  0.1-    180406 I52  1.8+  1.2+    180408 H01  0.0   0.0
    180405 H01  0.2+  0.1+    180406 I52  0.7+  0.1-    180408 H01  0.1-  0.1+
    180405 H01  0.1-  0.0     180406 I52  0.4+  0.3-    180408 H01  0.0   0.1+
    180405 H01  0.0   0.3+    180406 I52  0.7-  0.6-    180408 H01  0.0   0.0
    180405 G96  0.1+  0.3+    180406 I52  0.6-  0.3-
    180405 G96  0.1-  0.4+    180406 I52  0.9-  0.3-
    
    Ephemeris:
    2018 GJ                  a,e,i = 1.15, 0.15, 37                  q = 0.9768
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 03 09    16 09 35.5 +48 33 55   0.4076  1.1638   104.5    55.7    23.8
    ...
    2018 03 24    15 26 05.0 +50 48 55   0.2630  1.1282   113.6    54.1    22.7
    ...
    2018 04 01    14 20 23.0 +50 19 41   0.1890  1.1090   121.2    50.4    21.9
    ...
    2018 04 07    12 54 36.5 +44 54 17   0.1418  1.0946   128.4    45.7    21.1
    2018 04 08    12 37 31.5 +43 03 43   0.1353  1.0923   129.5    45.0    21.0
    2018 04 09    12 20 01.6 +40 51 03   0.1295  1.0899   130.4    44.4    20.9
    ...
    2018 04 15    10 38 47.2 +19 52 01   0.1117  1.0759   128.3    47.1    20.6
    ...
    2018 04 23    09 07 40.9 -10 21 43   0.1409  1.0579   108.2    64.5    21.6
    ...
    2018 05 08    07 54 47.8 -32 45 46   0.2652  1.0270    86.4    78.7    23.3
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-G31
    

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