• MPC Preparation (Info)

  • MPEC 2019-K07 : 2018 DZ1

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    M.P.E.C. 2019-K07                                Issued 2019 May 19, 02:00 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 DZ1
    
                               Revision to MPEC 2018-D81
    
    Additional Observations:
         K18D01Z KC2019 04 05.59394018 03 06.303+32 46 30.53         23.79GVEK007T12
         K18D01Z KC2019 04 09.61457818 19 29.727+36 00 32.77         24.06GVEK007T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. J. Tholen,
        D. Hung.  Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    190405 T12 12.7- 17.3+    190409 T12 12.7- 18.1+    MPO441107   +0.0010 day
    
    Orbital elements:
    2018 DZ1                                                 Earth MOID = 0.0822 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 251.22948              (2000.0)            P               Q
    n   1.01857603     Peri.  189.21381     +0.93726465     +0.33496563
    a   0.9783038      Node   150.63779     -0.30599014     +0.92322498
    e   0.0957118      Incl.   11.36309     -0.16704794     +0.18829144
    P   0.97           H   24.7           G   0.15           U   2
    Residuals in seconds of arc
    180211 F51  0.0   0.1-    180225 033  0.2-  0.2+    180227 I52  0.1-  0.2-
    180211 F51  0.1+  0.2-    180225 033  0.0   0.1+    180227 I52  0.1-  0.2-
    180211 F51  0.1+  0.4+    180225 033  0.0   0.3+    180306 I52  0.5+  0.3+
    180211 F51  0.3+  0.0     180225 033  0.2+  0.1-    180306 I52  0.5-  0.1+
    180225 G96  0.1+  0.1-    180225 033  0.2+  0.2-    180306 I52  0.1-  0.1-
    180225 G96  0.2-  0.5+    180225 033  0.4+  0.0     180307 F51  0.1-  0.1+
    180225 G96  0.2-  0.8-    180225 033  0.3-  0.3-    180317 291  0.1-  0.4+
    180225 G96  0.4+  0.7-    180226 807  0.1+  0.1-    180317 291  0.1+  0.1+
    180225 I52  0.5-  0.2-    180226 G96  0.9+  0.0     180317 291  0.1-  0.4+
    180225 I52  0.3-  0.3-    180226 807  0.0   0.2-    180318 H21  0.1+  0.4+
    180225 I52  0.4+  0.2-    180226 G96  0.3+  0.1+    180318 H21  0.3+  0.2+
    180225 G96  0.1-  0.7+    180226 807  0.0   0.3-    180318 H21  0.0   0.1+
    180225 G96  0.1-  0.9-    180226 G96  0.2-  0.2+    180318 291  0.4-  0.2-
    180225 G96  1.0-  1.0+    180226 I52  0.1+  0.4-    180318 291  0.3-  0.6+
    180225 G96  0.7+  0.3-    180226 I52  0.3-  0.6-    190405 T12  0.0   0.1-
    180225 033  0.1-  0.1+    180226 I52  0.2-  0.2-    190409 T12  0.0   0.0
    
    Ephemeris:
    2018 DZ1                 a,e,i = 0.98, 0.10, 11                  q = 0.8847
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2019 04 19    18 58 52.3 +42 34 35   0.1996  1.0274    91.0    77.8    24.0
    ...
    2019 05 04    20 07 55.7 +50 13 17   0.2097  1.0055    83.3    84.7    24.3
    ...
    2019 05 12    20 49 21.6 +52 53 06   0.2143  0.9928    79.3    88.5    24.5
    ...
    2019 05 18    21 23 11.3 +54 12 27   0.2172  0.9830    76.3    91.3    24.6
    2019 05 19    21 29 04.4 +54 22 11   0.2177  0.9813    75.9    91.7    24.6
    2019 05 20    21 35 01.7 +54 30 55   0.2181  0.9797    75.4    92.2    24.6
    ...
    2019 05 26    22 12 08.6 +55 01 18   0.2206  0.9696    72.5    95.0    24.7
    ...
    2019 06 03    23 04 33.2 +54 39 04   0.2237  0.9563    68.8    98.6    24.9
    ...
    2019 06 18    00 44 40.5 +50 25 25   0.2320  0.9323    62.6   104.6    25.2
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-K07
    

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    MPEC number:

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