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  • MPEC 2018-M61 : 2018 MZ4

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    M.P.E.C. 2018-M61                                Issued 2018 June 20, 00:31 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 MZ4
    
    Observations:
         K18M04Z  C2018 06 17.26659 17 02 58.47 +31 05 56.9                UEM061I41
         K18M04Z  C2018 06 17.26693 17 03 00.79 +31 05 10.0                UEM061I41
         K18M04Z* C2018 06 17.31681 17 08 24.91 +29 14 21.9          18.10RUEM061I41
         K18M04Z  C2018 06 17.31715 17 08 26.98 +29 13 37.9          18.10RUEM061I41
         K18M04Z  C2018 06 17.40999 17 16 16.70 +26 22 28.2          18.79gUEM061I41
         K18M04Z  C2018 06 17.41034 17 16 18.20 +26 21 53.4          18.79gUEM061I41
         K18M04Z HC2018 06 18.99947 17 54 25.76 +13 18 36.5                VEM061204
         K18M04Z KC2018 06 19.01146 17 54 27.84 +13 16 49.2          20.2 GVEM061204
         K18M04Z KC2018 06 19.03608 17 54 32.28 +13 13 08.8                VEM061204
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector
        + CCD.
    I41 Palomar Mountain--ZTF.  Observer A. U. Tomatic.  Measurers Q.-Z. Ye,
        H.-W. Lin, F. Masci.  1.2-m Schmidt + ZTF camera, 1.2-m f/2.4 Schmidt
        + ZTF camera.
    
    Orbital elements:
    2018 MZ4                                                 Earth MOID = 0.0011 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 340.27086              (2000.0)            P               Q
    n   0.76072375     Peri.  284.44769     -0.97229425     +0.15976405
    a   1.1884604      Node   264.95881     -0.08511849     -0.92184903
    e   0.2916024      Incl.    9.86379     -0.21771250     -0.35308613
    P   1.30           H   28.8           G   0.15           U   6
    Residuals in seconds of arc
    180617 I41  0.7+  1.0-    180617 I41  0.6+  0.4-    180618 204  0.0   0.2+
    180617 I41  0.9-  0.6+    180617 I41  0.2+  0.0     180619 204  0.4-  0.5+
    180617 I41  0.3-  1.3+    180617 I41  0.3-  0.4-    180619 204  0.4+  0.6-
    
    Ephemeris:
    2018 MZ4                 a,e,i = 1.19, 0.29, 10                  q = 0.8419
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 05 21    05 58 44.0 -06 51 02   0.1529  0.9034    41.6   132.0    30.4
    ...
    2018 06 05    06 05 46.8 -08 19 20   0.06563 0.9621    35.9   141.8    29.9
    ...
    2018 06 13    06 11 52.6 -06 31 05   0.02105 0.9977    31.9   147.4    28.4
    ...
    2018 06 19    17 54 29.7 +13 24 58   0.01236 1.0260   143.1    36.4    20.8
    2018 06 20    17 58 55.4 +11 39 53   0.01788 1.0308   144.9    34.5    21.6
    2018 06 21    18 01 15.1 +10 43 14   0.02341 1.0357   145.8    33.4    22.1
    ...
    2018 06 27    18 05 45.0 +08 41 00   0.05684 1.0650   147.7    30.6    24.0
    ...
    2018 07 05    18 07 33.2 +07 25 48   0.1024  1.1045   147.6    29.6    25.4
    ...
    2018 07 20    18 11 48.3 +05 00 01   0.1939  1.1780   143.7    30.7    26.9
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-M61
    

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