[Iaude] MPEC K30: 2018 DN1 [a=1.61,e=0.40,i=2.7,H=24.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun May 17 21:44:07 EDT 2020


M.P.E.C. 2020-K30                                  Issued 2020 May 18, 01:42 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2018 DN1                                    


                           Revision to MPEC 2018-D68                            

Additional Observations:
     K18D01N  C2020 05 10.55365416 29 37.803+39 13 06.99         19.6 GVEK030F52
     K18D01N  C2020 05 10.56742716 29 41.030+39 09 59.82         20.1 GVEK030F52
     K18D01N  C2020 05 10.57992316 29 43.960+39 07 09.66         21.2 GVEK030F52
     K18D01N  C2020 05 10.59303516 29 47.130+39 04 09.70         20.5 GVEK030F52
     K18D01N  C2020 05 10.59368516 29 47.311+39 04 00.73         20.2 GVEK030F52
     K18D01N  C2020 05 12.54798316 38 13.674+32 15 35.92         20.3 GVEK030F52
     K18D01N  C2020 05 12.56047516 38 15.627+32 13 07.32         20.3 GVEK030F52
     K18D01N  C2020 05 17.55375216 50 54.697+18 34 15.32         20.37wUEK030F51
     K18D01N  C2020 05 17.56665616 50 55.472+18 32 29.42         20.50wUEK030F51
     K18D01N  C2020 05 17.89169 16 51 35.85 +17 48 08.9          21.2 VVEK030033
     K18D01N  C2020 05 17.89371 16 51 36.01 +17 47 52.9          21.2 VVEK030033
     K18D01N  C2020 05 17.89572 16 51 36.15 +17 47 37.5          21.1 VVEK030033
     K18D01N KC2020 05 17.97262 16 51 42.82 +17 37 46.3          20.1 VqEK030I93
     K18D01N KC2020 05 17.97719 16 51 43.16 +17 37 10.9          19.7 VqEK030I93
     K18D01N KC2020 05 17.98056 16 51 43.40 +17 36 44.7          19.6 VqEK030I93
     K18D01N KC2020 05 17.99873316 51 43.12 +17 34 23.9          20.4 GVEK030L01
     K18D01N KC2020 05 18.00004716 51 43.21 +17 34 13.4          20.5 GVEK030L01
     K18D01N KC2020 05 18.00136016 51 43.31 +17 34 02.8          20.5 GVEK030L01
     K18D01N KC2020 05 18.00399816 51 43.45 +17 33 42.1          20.3 GVEK030L01
     K18D01N KC2020 05 18.00532416 51 43.55 +17 33 31.7          20.4 GVEK030L01

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C. 
   Hoegner, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M. 
   Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. 
   Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. 
   Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T. 
   Lowe, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. 
   Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector + 
   CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
200510 F52   22-   20-    200518 L01   19-   10-    MPO435691   -2.07 days

Orbital elements:
2018 DN1                                                 Earth MOID = 0.0267 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M  26.51055              (2000.0)            P               Q
n   0.48224702     Peri.   59.42619     -0.98427199     +0.17295014
a   1.6104838      Node   130.50795     -0.17392593     -0.91296906
e   0.3981939      Incl.    2.71483     -0.03095825     -0.36956155
P   2.04           H   24.0           G   0.15           U   1
Residuals in seconds of arc
180223 G96  0.3-  0.3+    180224 033  0.5-  0.1-    200510 F52  0.3-  0.4+
180223 G96  0.1-  0.3+    180224 033  0.4+  0.1-    200510 F52  0.1-  0.3-
180223 G96  1.0+  0.1-    180224 033  0.1+  0.1-    200510 F52  0.2+  0.3-
180223 G96  0.8-  0.1-    180224 033  0.1-  0.2-    200512 F52  0.1+  0.0
180223 I52  0.6-  1.0+    180224 033  0.0   0.0     200512 F52  0.2+  0.5+
180223 I52  0.0   0.1+    180224 033  0.2-  0.1+    200517 F51  0.0   0.0
180223 I52  0.3+  0.1-    180224 033  0.4+  0.3-    200517 F51  0.0   0.0
180223 I52  0.3+  0.2-    180224 033  0.1+  0.2+    200517 033  0.3-  0.2-
180224 033  0.0   0.2-    180224 033  0.3+  0.6+    200517 033  0.2-  0.4-
180224 033  0.3+  0.1-    180224 033  0.2-  0.5+    200517 033  0.4-  0.2-
180224 033  0.5-  0.1+    180225 033  0.0   0.0     200517 I93  0.6-  0.4-
180224 033  0.1+  0.2-    180225 033  0.5-  0.3-    200517 I93  0.0   0.2-
180224 033  0.2+  0.2-    180225 033  0.4+  0.2+    200517 I93  0.4+  0.2-
180224 033  0.1+  0.3-    180225 033  0.1-  0.1+    200517 L01  0.1-  0.6+
180224 033  0.2+  0.1-    180225 033  0.1+  0.2+    200518 L01  0.0   0.4+
180224 033  0.4+  1.0-    180225 033  0.0   0.1-    200518 L01  0.3+  0.1+
180224 033  0.1-  0.2-    180225 033  0.0   0.2+    200518 L01  0.0   0.0
180224 033  0.2-  0.0     200510 F52  0.2+  0.2-    200518 L01  0.2+  0.0
180224 033  0.4-  0.1-    200510 F52  0.1+  0.1+

Ephemeris:
2018 DN1                 a,e,i = 1.61, 0.40, 3                   q = 0.9692
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 04 18    06 20 03.9 +55 57 38   0.08241 0.9780    69.3   106.2    22.5
...
2020 05 03    14 46 04.9 +70 13 09   0.05028 1.0129    94.1    83.0    20.4
...
2020 05 11    16 31 53.8 +37 34 36   0.05692 1.0408   121.5    55.9    19.9
...
2020 05 17    16 49 58.4 +19 50 52   0.07238 1.0653   136.8    40.5    20.0
2020 05 18    16 51 42.8 +17 35 13   0.07553 1.0696   138.9    38.4    20.1
2020 05 19    16 53 13.8 +15 29 26   0.07880 1.0740   140.8    36.5    20.1
...
2020 05 25    16 59 05.1 +05 39 15   0.1007  1.1018   150.6    26.8    20.4
...
2020 06 02    17 02 20.1 -02 42 27   0.1350  1.1418   159.8    17.8    20.9
...
2020 06 17    17 04 39.2 -11 29 50   0.2137  1.2237   165.1    12.3    21.8

A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-K30




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