• MPC Preparation (Info)

  • MPEC 2020-X181 : 1998 KY26

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    M.P.E.C. 2020-X181                            Issued 2020 December 15, 16:56 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
    
                                    1998 KY26                                
    
    
                                Revision to MPEC 1998-L2                            
    
    Additional Observations:
         J98K26Y KC2002 02 16.45664110 02 10.075+16 38 57.32         25.19GVEX181T12
         J98K26Y KC2002 02 17.52488209 59 50.307+16 53 28.02         25.33GVEX181T12
         J98K26Y &C2020 12 10.20511506 40 38.589+23 10 40.06         26.1 GVEX181309
         J98K26Y &C2020 12 10.23058206 40 35.128+23 10 47.26         26.1 GVEX181309
         J98K26Y <C2020 12 10.50701 06 39 59.07 +23 11 50.1          25.4 RoEX181568
         J98K26Y <C2020 12 10.50876 06 39 58.83 +23 11 50.5          25.4 RoEX181568
         J98K26Y <C2020 12 10.51051 06 39 58.59 +23 11 51.0          25.4 RoEX181568
         J98K26Y &C2020 12 12.20448906 36 14.853+23 19 38.44         25.5 GVEX181309
         J98K26Y &C2020 12 12.24779806 36 08.684+23 19 50.06         25.4 GVEX181309
         J98K26Y &C2020 12 12.28094806 36 03.950+23 19 58.82         25.8 GVEX181309
    
    Observer details:
    309 Cerro Paranal.  Observers O. Hainaut, D. Koschny, M. Micheli, L. Conversi,
        M. Hirabayashi.  Measurers M. Micheli, D. Farnocchia.  8.2-m VLT + CCD.
    568 Mauna Kea.  Observers T. Terai, Y. Takagi, F. Yoshida, M. Hirabayashi, S.
        Urakawa.  Measurer T. Terai.  8.2-m f/2.0 reflector + CCD.
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer 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
    020216 T12 10.9-  4.3-    201212 309 41.1-  1.4-    MPO 38186   -0.01 days
    
    Orbital elements:
    1998 KY26                                                Earth MOID = 0.0029 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 143.51530              (2000.0)            P               Q                  
    n   0.72000738     Peri.  209.37093     +0.40239383     +0.91510528             
    a   1.2328533      Node    84.36719     -0.83480149     +0.37832406             
    e   0.2018256      Incl.    1.48098     -0.37574682     +0.13947486             
    P   1.37           H   25.53          G   0.15           U   0                  
    Residuals in seconds of arc
    980528 691  0.7-  0.8+    980602 046  0.4+  0.4-    980606 046  0.3+  0.7-
    980528 691  0.8-  0.8+    980602 046  0.5+  0.0-    980606 557  0.7-  1.3-
    980531 691  0.2+  0.4+    980602 557  0.9+  0.6-    980606 557  0.6-  1.2-
    980531 691  0.0-  0.2+    980602 557  0.6+  0.4-    980606 557  1.0-  1.4-
    980531 691  0.3+  0.5+    980603 557  0.6+  0.3+    980606 557  1.1-  1.4-
    980531 046  0.4-  0.2-    980603 709  0.1+  0.1+    980606 686  0.3-  0.2-
    980531 046  0.1+  0.4-    980603 709  0.1+  0.1+    980606 686  0.1+  0.1-
    980531 046  0.4+  0.2+    980603 709  0.2-  0.1-    980606 686  0.1+  0.0+
    980531 046  0.3+  0.6-    980603 709  0.3+  0.2+    980606 686  0.6-  0.2-
    980531 046  1.0-  1.6-    980603 709  0.1-  0.3+    980606 686  0.3-  0.1+
    980531 046  0.5-  0.3-    980603 709  0.1+  0.2+    980606 686  0.5+  0.5+
    980531 557  0.0-  0.1-    980603 704  0.6-  1.0+    980606 686  0.4+  0.3+
    980531 557  0.5+  0.5-    980603 704  1.1-  0.2+    980606 686  0.1-  0.0-
    980531 557  0.0-  0.4-    980603 704  0.6-  0.7-    980606 686  0.3-  0.0+
    980531 557  0.3+  0.2-    980603 704  1.6-  0.0-    980606 686  0.3-  0.1+
    980531 557  0.2-  0.4-    980603 704  0.5-  0.6+    980606 658  0.7+  0.1+
    980531 557  0.3+  0.0-    980603 046  0.1-  0.8+    980606 658  0.8-  0.1-
    980601 860 (5.2+  1.5-)   980603 046  0.2-  0.7+    980606 658  1.0-  0.6-
    980601 860 (2.8-  4.2-)   980603 046  0.1+  0.8+    980606 422  0.5-  2.2-
    980601 860 (6.6-  7.3-)   980603 046  0.4-  0.9+    980606 422  1.3-  2.2-
    980601 709  0.5+  0.1-    980604 327  1.3-  0.1-    980606 422  1.1-  1.2-
    980601 709  0.4+  0.2+    980604 327  0.6-  0.6+    980606 422  0.5+  0.4+
    980601 709  0.5+  0.0+    980604 327  0.8-  0.5+    980606 422  0.6+  0.7+
    980601 709  0.6+  0.2+    980604 118  0.4-  0.3+    980606 422  0.5+  0.4+
    980601 691  0.2+  0.4+    980604 118  1.0-  0.0-    980606 422  1.0+  0.1-
    980601 709  0.8+  0.5+    980604 118  1.3-  0.3-    980606 426  0.8+  0.2+
    980601 691  0.3+  0.7+    980604 046  0.0+  0.3+    980606 426  0.6+  0.1+
    980601 709  0.4+  0.5+    980604 046  0.0-  0.4+    980606 426  0.0+  0.5-
    980601 709  0.2-  0.0-    980604 046  0.1-  0.6+    980606 426  0.7-  0.2+
    980601 691  0.2+  0.4+    980604 046  0.1+  0.4+    980606 426  0.1-  0.5-
    980601 691  2.2+  1.1+    980604 046  0.1+  0.3+    980606 426  0.7-  0.7-
    980601 691  1.2+  0.9+    980605 595 (2.5+  1.4+)   980606 557  0.2+  0.1+
    980601 422  0.2-  0.7-    980605 595  1.1+  1.9+    980606 557  0.2+  0.1+
    980601 422  0.5-  0.2-    980605 595  0.7+  0.2+    980606 557  0.0+  0.2-
    980601 422  0.1+  1.1-    980605 557  0.0+  0.7+    980606 046  0.5-  0.2-
    980601 118  1.0+  1.3-    980605 557  0.0+  0.8+    980606 046  0.3-  0.5-
    980601 118  0.7+  0.8-    980605 557  0.0+  0.4+    980606 046  0.4-  0.4-
    980601 118  0.6+  0.6-    980605 557  0.0-  0.5+    980606 046  0.2-  0.2-
    980601 046  0.4+  0.6-    980605 691  0.7-  0.1+    980606 046  0.1+  0.1-
    980601 046  0.4+  0.6-    980605 691  0.0-  0.2-    980606 046  0.2+  0.2-
    980601 046  0.1-  0.3-    980605 670  1.5-  2.5+    980606 046  0.3-  0.4+
    980601 046  0.5+  0.3-    980605 670  1.1-  0.4+    980606 046  0.1-  0.0-
    980601 046  0.4+  0.5-    980605 670  0.2-  1.4+    980606 046  0.1-  0.2+
    980601 557  0.1+  0.0-    980605 670  0.2+  0.8+    980606 046  0.3-  0.1-
    980601 557  0.3+  0.6-    980605 691  0.3-  0.0+    980606 046  0.2+  0.3-
    980601 557  0.7+  0.5-    980605 670  0.1-  1.0+    980606 046  0.6-  0.1+
    980602 557  0.1-  0.6-    980605 670  1.0-  1.0+    980606 046  0.6+  0.1+
    980602 557  0.1+  0.0+    980605 670  1.8-  0.8-    980606 046  0.8+  0.4+
    980602 557  0.2-  0.7-    980605 691  1.0-  0.1-    980606 046  0.5+  0.1-
    980602 557  0.5+  0.9-    980605 568  0.7+  0.5+    980606 118  0.4-  0.5-
    980602 817  0.6+  0.3-    980605 691  0.5-  0.0+    980606 118  0.2+  0.0+
    980602 817  0.3+  0.7-    980605 691  0.9-  0.4-    980607 118  1.0-  0.5-
    980602 817  0.5+  0.6-    980605 568  0.4+  0.2+    980607 118  0.6-  0.3-
    980602 784  0.1-  0.7-    980605 568  0.6+  0.4+    980607 557  0.1-  0.3-
    980602 817  0.3+  0.7-    980605 568  0.5+  1.0+    980607 557  0.3-  0.1-
    980602 784  0.1-  0.8-    980605 568  0.2-  0.2+    980607 557  0.3-  0.3-
    980602 784  0.1+  0.3-    980605 422  0.5-  0.4-    980607 557  0.2-  0.3-
    980602 784  0.2+  0.3-    980605 422  0.1-  0.7-    980607 557  0.0-  0.3-
    980602 784  0.3+  0.3-    980605 422  0.2-  1.4-    980607 658  0.3-  0.4+
    980602 784  0.7+  0.5-    980605 422  0.1-  0.9-    980607 658  0.8+  0.5+
    980602 691  0.7-  0.2+    980605 422  0.2+  0.9-    980607 658  0.9-  0.4+
    980602 691  0.1-  0.3+    980605 557  0.5-  1.0-    980608 658  0.9+  0.4-
    980602 691  0.4-  0.3+    980605 557  0.4-  1.0-    980608 658  0.9+  0.7-
    980602 426  0.8+  0.5-    980605 557  0.5-  1.0-    980608 658  2.1+  0.5-
    980602 426  0.1-  0.7-    980605 557  0.8-  1.0-    020216 T12 (0.3-  0.7+)
    980602 426  0.0-  0.4-    980605 557  0.9-  0.7-    020217 T12 (0.1+  0.7+)
    980602 426  0.6+  1.1-    980605 557  0.1+  0.8-    201210 309  0.0-  0.1-
    980602 557  0.4+  0.6-    980605 557  0.0+  1.1-    201210 309  0.1+  0.1-
    980602 557  0.1-  0.4-    980605 557  0.0-  0.8-    201210 568  0.1-  0.0+
    980602 557  0.0-  0.3-    980606 046  0.0-  1.0-    201210 568  0.1-  0.1+
    980602 557  0.4+  0.8-    980606 046  0.7+  0.7-    201210 568  0.1-  0.0+
    980602 557  0.3+  0.3-    980606 046  0.0+  0.5-    201212 309  0.1-  0.1-
    980602 557  0.3-  0.9-    980606 046  0.4-  0.6-    201212 309  0.0+  0.1-
    980602 046  0.1-  0.2-    980606 046  0.0+  0.8-    201212 309  0.0+  0.0+
    980602 046  0.8+  0.1+    980606 046  0.2-  0.9-
    980602 046  0.4+  0.1-    980606 046  0.3+  1.0-
    
    Ephemeris:
    1998 KY26                a,e,i = 1.23, 0.20, 1                   q = 0.9840
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 11 15    07 11 55.5 +21 35 21   0.5554  1.3908   126.1    35.1    26.4
    ...
    2020 11 30    06 59 07.3 +22 24 23   0.4976  1.4203   144.3    23.9    25.9
    ...
    2020 12 08    06 45 13.6 +23 00 21   0.4776  1.4338   155.7    16.4    25.6
    ...
    2020 12 14    06 32 08.1 +23 27 13   0.4696  1.4428   164.8    10.3    25.3
    2020 12 15    06 29 47.3 +23 31 26   0.4690  1.4443   166.4     9.3    25.3
    2020 12 16    06 27 24.5 +23 35 32   0.4685  1.4457   167.9     8.2    25.3
    ...
    2020 12 22    06 12 41.9 +23 57 12   0.4701  1.4535   177.4     1.8    24.9
    ...
    2020 12 30    05 53 26.7 +24 16 33   0.4841  1.4625   170.0     6.7    25.3
    ...
    2021 01 14    05 25 44.4 +24 28 14   0.5438  1.4747   148.4    20.4    26.1
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-X181
    


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