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  • MPEC 2018-T161: 2015 KS18

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    M.P.E.C. 2018-T161                               Issued 2018 Oct. 13, 14:09 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
    
                                       2015 KS18
    
                               Revision to MPEC 2015-K36
    
    Additional Observations:
         K15K18S  C2018 10 05.61018604 55 46.311+27 21 44.41         22.48GVET161T12
         K15K18S  C2018 10 05.61761604 55 46.291+27 21 41.81         22.49GVET161T12
         K15K18S  C2018 10 10.56856204 55 10.501+26 50 42.76         22.37GVET161T12
         K15K18S  C2018 10 10.57249204 55 10.428+26 50 41.18         22.53GVET161T12
    
    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
    181005 T12  2.6+  0.8-    181010 T12  2.8+  0.7-    MPO357219   -0.0017 day
    
    Orbital elements:
    2015 KS18                                                Earth MOID = 0.2316 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 130.42333              (2000.0)            P               Q
    n   0.36472563     Peri.   63.41260     +0.52050668     +0.83417277
    a   1.9401048      Node   239.13600     -0.83931730     +0.46061720
    e   0.3995610      Incl.   12.26069     -0.15690529     +0.30329456
    P   2.70           H   19.7           G   0.15           U   1
    Residuals in seconds of arc
    150418 F51  0.1+  0.0     150519 926  0.1+  0.1-    150612 807  0.5-  0.0
    150418 F51  0.1+  0.1+    150519 926  0.1-  0.2+    150613 807  0.3-  0.3+
    150418 F51  0.1+  0.2+    150519 926  0.2-  0.2+    150613 807  0.8-  0.4+
    150418 F51  0.3+  0.1+    150519 474  0.2+  0.1+    150613 807  0.2-  0.1-
    150518 703  0.4-  0.9-    150519 474  0.1-  0.0     150613 807  0.4-  0.1+
    150518 703  0.6-  0.6-    150519 474  0.2-  0.0     150613 448  0.0   0.1+
    150518 703  0.9+  0.7+    150520 926  0.4-  0.4-    150613 448  0.0   0.1+
    150518 703  1.1-  1.2+    150520 926  0.2+  0.1-    150613 448  0.1-  0.7-
    150518 H01  0.2-  0.0     150520 I52  0.1+  0.2+    150615 807  0.1+  1.0-
    150518 H01  0.1-  0.1+    150520 926  0.3+  0.2-    150615 807  0.6-  0.2-
    150518 H01  0.1-  0.0     150520 I52  0.2-  0.1+    150615 807  0.1+  0.4-
    150518 H01  0.4-  0.1-    150520 I52  0.2+  0.7+    150617 807  0.8-  0.2+
    150518 I52  0.1+  0.0     150520 I52  0.4+  0.0     150617 807  0.1-  0.1+
    150518 I52  0.0   0.4-    150520 B74  0.0   0.2+    150617 807  0.2-  0.1+
    150518 I52  0.3-  0.0     150520 B74  0.1+  0.1-    150617 807  0.2-  0.4-
    150518 I52  0.2+  0.3+    150520 B74  0.2-  0.3-    150618 807  0.3-  0.3-
    150518 291  0.4+  0.1-    150521 807  0.0   0.7-    150701 F51  0.3+  0.3+
    150518 291  0.0   0.7-    150521 807  0.5+  0.1-    150701 F51  0.2+  0.0
    150518 291  0.2-  0.3+    150521 807  0.7+  0.0     150701 F51  0.2+  0.2+
    150518 474  0.3-  0.1+    150521 300  0.6+  0.1-    150704 807  0.7+  0.3-
    150518 474  0.4-  0.1-    150521 300  0.0   0.1+    150704 807  0.5+  0.2-
    150518 474  0.1-  0.0     150521 300  0.0   0.5-    150704 807  0.1-  0.0
    150518 474  0.5-  0.0     150524 448  0.4-  0.2-    150718 807  0.0   0.1+
    150518 474  0.0   0.1-    150524 448  0.3+  0.9-    150718 807  0.0   0.0
    150518 474  0.0   0.2-    150524 448  0.5-  0.5-    150718 807  0.1+  0.2-
    150518 474  0.0   0.1-    150526 807  0.2-  0.4-    150719 807  0.3-  0.4-
    150519 807  0.1+  0.8+    150526 807  0.1-  0.4-    150719 807  0.1+  0.0
    150519 807  0.2+  0.4+    150527 807  0.3+  0.3-    150719 807  0.4+  0.1+
    150519 807  0.7+  0.2+    150527 H21  0.5+  0.4+    150720 807  0.4-  0.2+
    150519 H36  0.5+  0.2-    150527 H21  0.5-  0.8+    150720 807  0.1-  0.3+
    150519 H36  0.4+  0.2+    150527 H21  0.1-  0.3-    150720 807  0.0   0.4+
    150519 H36  0.0   0.6-    150606 807  0.2-  0.4+    151105 926  0.0   0.3+
    150519 H21  0.1-  0.1-    150606 807  0.0   0.2-    151105 926  0.2-  0.2+
    150519 H21  0.3+  0.0     150606 807  0.6-  0.4-    151105 926  0.7-  0.4+
    150519 H21  0.2+  0.0     150606 807  0.7-  0.3+    181005 T12  0.0   0.1-
    150519 926  0.1-  0.3+    150606 807  0.1-  0.0     181005 T12  0.0   0.1-
    150519 926  0.1-  0.3-    150612 807  1.0-  0.7-    181010 T12  0.0   0.0
    150519 926  0.0   0.0     150612 807  1.1-  0.2-    181010 T12  0.0   0.0
    
    Ephemeris:
    2015 KS18                a,e,i = 1.94, 0.40, 12                  q = 1.1649
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 09 13    04 43 25.4 +28 57 09   1.2184  1.6678    96.7    36.8    22.7
    ...
    2018 09 28    04 54 16.6 +28 02 03   1.1426  1.7480   109.0    32.8    22.6
    ...
    2018 10 06    04 55 46.3 +27 19 26   1.1031  1.7902   116.6    30.0    22.5
    ...
    2018 10 12    04 54 46.0 +26 41 01   1.0757  1.8215   122.8    27.4    22.4
    2018 10 13    04 54 25.2 +26 34 02   1.0714  1.8267   123.9    27.0    22.4
    2018 10 14    04 54 01.3 +26 26 54   1.0672  1.8319   125.0    26.5    22.4
    ...
    2018 10 20    04 50 35.0 +25 40 34   1.0444  1.8628   131.8    23.5    22.3
    ...
    2018 10 28    04 43 21.2 +24 29 16   1.0218  1.9033   141.6    18.9    22.1
    ...
    2018 11 12    04 23 30.8 +21 49 11   1.0132  1.9773   161.6     9.1    21.8
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-T161
    

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