[Iaude] MPEC X113: 2018 KK2 [a=2.87,e=0.55,i=14.1,H=18.4]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2019-X113                            Issued 2019 December 11, 18:17 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 KK2                                    


                           Revision to MPEC 2018-K78                            

Additional Observations:
     K18K02K  C2019 11 27.35488904 10 13.859+24 42 52.04         23.29GVEX113T12
     K18K02K  C2019 11 27.35871604 10 13.623+24 42 50.86         23.27GVEX113T12
     K18K02K  C2019 11 28.33031204 09 14.760+24 38 04.35         23.40GVEX113T12
     K18K02K  C2019 11 28.33415604 09 14.518+24 38 03.24         23.37GVEX113T12

Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer 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
191127 T12 54.8-  0.8-    191128 T12 54.7-  0.7-    MPO457152   +0.00 days

Orbital elements:
2018 KK2                                                 Earth MOID = 0.2846 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 124.64941              (2000.0)            P               Q
n   0.20252796     Peri.   26.53642     +0.19456550     +0.95209102
a   2.8717462      Node   255.44589     -0.93770418     +0.10995260
e   0.5534090      Incl.   14.10860     -0.28784567     +0.28536489
P   4.87           H   18.4           G   0.15           U   2
Residuals in seconds of arc
180517 C51  1.1+  0.1+    180524 691  0.7-  0.3-    180611 691  0.4+  0.3+
180517 C51  0.3-  1.0+    180524 T12  0.1+  0.0     180611 691  0.2+  0.1-
180517 C51  1.0+  0.7+    180524 T12  0.1-  0.1-    180619 807  0.3+  0.7-
180517 C51 (0.2-  1.8+)   180524 T12  0.0   0.0     180619 807  0.3+  0.0
180518 C51  0.7-  1.3-    180524 T12  0.1-  0.1+    180619 807  0.0   0.1+
180522 T12  0.1+  0.0     180524 T12  0.1+  0.1+    180708 807  0.9-  1.1-
180522 T12  0.1-  0.0     180527 695  0.5+  0.1+    180708 807  0.7-  1.0-
180522 T12  0.0   0.0     180527 695  0.2+  0.6+    180708 807  0.4-  0.9-
180522 T12  0.0   0.1-    180527 695  0.3+  0.4+    180809 807  0.4+  0.2+
180522 T12  0.0   0.0     180602 691  0.2+  0.5+    180809 807  0.3+  0.3-
180523 V06  0.1-  0.1+    180602 691  0.1+  0.1+    180809 807  0.2+  0.0
180523 V06  0.3-  0.0     180608 691  0.2-  0.0     191127 T12  0.0   0.0
180523 V06  0.1-  0.2-    180608 691  0.0   0.1+    191127 T12  0.0   0.0
180524 691  0.2+  0.2+    180608 691  0.2+  0.2+    191128 T12  0.1+  0.0
180524 691  0.2-  0.2+    180611 691  0.7-  0.6+    191128 T12  0.0   0.0

Ephemeris:
2018 KK2                 a,e,i = 2.87, 0.55, 14                  q = 1.2825
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 11 11    04 26 44.2 +25 55 55   2.5508  3.4912   158.5     6.0    23.6
...
2019 11 26    04 11 36.4 +24 49 28   2.5689  3.5539   175.6     1.2    23.4
...
2019 12 04    04 03 38.6 +24 09 43   2.6082  3.5863   171.7     2.3    23.5
...
2019 12 10    03 58 04.1 +23 39 23   2.6512  3.6103   164.6     4.1    23.7
2019 12 11    03 57 11.1 +23 34 20   2.6595  3.6142   163.4     4.5    23.7
2019 12 12    03 56 19.0 +23 29 19   2.6681  3.6181   162.2     4.8    23.7
...
2019 12 18    03 51 26.4 +22 59 45   2.7258  3.6416   155.0     6.6    23.9
...
2019 12 26    03 45 58.0 +22 22 40   2.8187  3.6723   145.6     8.7    24.1
...
2020 01 10    03 39 19.9 +21 24 54   3.0343  3.7280   128.6    11.9    24.4

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-X113