[Iaude] MPEC Y86: 2018 CX1 [a=0.82,e=0.40,i=34.0,H=20.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Dec 24 10:03:31 EST 2019


M.P.E.C. 2019-Y86                             Issued 2019 December 24, 15:02 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 CX1                                    


                           Revision to MPEC 2018-C58                            

Additional Observations:
     K18C01X KC2019 12 21.82598120 45 14.019-02 18 59.66         21.5 GVEY086J04
     K18C01X KC2019 12 21.84164820 45 18.095-02 17 56.08         22.0 GVEY086J04
     K18C01X KC2019 12 21.85731820 45 22.086-02 16 53.34         21.4 GVEY086J04
     K18C01X KC2019 12 23.82757120 53 46.392-00 06 38.68         21.9 GVEY086J04
     K18C01X KC2019 12 23.84539320 53 50.829-00 05 29.20         21.5 GVEY086J04
     K18C01X KC2019 12 23.86332620 53 55.348-00 04 19.04         21.7 GVEY086J04

Observer details:
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers M. 
   Micheli, D. Koschny, M. Busch, A. Knofel, E. Schwab.  1.0-m f/4.4 
   reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
191221 J04 0.01+ 0.03+    191223 J04 0.01+ 0.03+    MPO477903   +0.04 days

Orbital elements:
2018 CX1                                                 Earth MOID = 0.1312 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 267.71373              (2000.0)            P               Q
n   1.33160480     Peri.  295.88749     +0.44821674     +0.89388224
a   0.8182496      Node     0.89576     -0.47829648     +0.24806233
e   0.3954950      Incl.   33.96557     -0.75520476     +0.37341614
P   0.74           H   20.2           G   0.15           U   5
Residuals in seconds of arc
180206 G96  0.9-  0.1-    180207 H36 (3.0-  1.6-)   180209 I52  0.1-  0.2-
180206 G96  0.2+  0.4+    180207 H36  0.3+  0.2+    180209 I52  0.3-  0.3-
180206 G96  0.3+  0.3-    180207 V06  0.2-  0.4+    180209 I52  0.2-  0.3-
180206 G96  0.2-  0.2+    180207 V06  0.6-  1.2-    180218 I52  0.3-  0.3-
180206 H01  0.0   0.1-    180207 V06  0.2+  0.2-    180218 I52  0.2+  0.4-
180206 I52  0.2+  0.4+    180207 I52  0.3+  0.3-    180218 I52  0.1+  0.1+
180206 H01  0.1-  0.0     180207 I52  0.2-  0.1-    180218 I52  0.2-  0.0
180206 I52  0.3+  0.3+    180207 I52  0.8+  0.3+    180223 I52  0.0   0.2-
180206 I52  0.2+  0.8+    180207 I52  0.8+  0.6+    180223 I52  0.1-  0.1-
180206 H01  0.0   0.0     180208 711  0.1+  0.4+    180223 I52  0.3+  0.4+
180206 V06  0.0   0.2-    180208 711  0.1+  0.2+    191221 J04  0.0   0.5-
180206 I52  0.1+  0.1+    180208 I52  0.2-  0.3-    191221 J04  0.4+  0.4+
180206 V06  0.2-  0.0     180208 711  0.0   0.5+    191221 J04  0.5-  0.5+
180206 V06  0.0   0.3-    180208 I52  0.3-  0.1-    191223 J04  0.1+  0.4+
180206 H01  0.1-  0.2-    180208 I52  0.0   0.4-    191223 J04  0.3-  0.2-
180206 V06  0.0   0.3+    180208 I52  0.3-  0.0     191223 J04  0.1+  0.5-
180207 H36  0.4+  0.2+    180209 I52  0.1-  0.3-

Ephemeris:
2018 CX1                 a,e,i = 0.82, 0.40, 34                  q = 0.4946
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 11 24    18 00 27.7 -30 21 32   1.0533  0.5273    29.7    68.2    21.3
...
2019 12 09    19 42 10.1 -16 47 31   0.9252  0.6301    38.4    76.0    21.7
...
2019 12 17    20 23 25.4 -07 45 11   0.8972  0.6950    43.1    75.1    21.8
...
2019 12 23    20 50 16.7 -01 01 04   0.8912  0.7438    46.4    73.3    21.9
2019 12 24    20 54 30.1 +00 04 40   0.8912  0.7519    47.0    73.0    21.9
2019 12 25    20 58 39.8 +01 09 48   0.8915  0.7599    47.5    72.6    21.9
...
2019 12 31    21 22 34.7 +07 25 54   0.8980  0.8067    50.5    70.2    22.0
...
2020 01 08    21 52 34.0 +15 02 30   0.9163  0.8654    54.1    66.9    22.1
...
2020 01 23    22 47 09.9 +26 55 57   0.9670  0.9614    59.0    61.4    22.2

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-Y86




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