[Iaude] MPEC X22: 2018 XA [a=2.59,e=0.68,i=3.9,H=23.4]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Dec 2 16:17:17 EST 2018


M.P.E.C. 2018-X22                                Issued 2018 Dec. 2, 21:12 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 XA
 
Observations:
     K18X00A* C2018 12 01.34686 01 11 16.09 +24 33 35.2          17.0 oVEX022T08
     K18X00A  C2018 12 01.35937 01 12 20.98 +24 34 58.2          16.8 oVEX022T08
     K18X00A  C2018 12 01.36657 01 12 58.22 +24 35 44.3          16.4 oVEX022T08
     K18X00A  C2018 12 01.36703 01 13 00.66 +24 35 47.2          16.3 oVEX022T08
     K18X00A  C2018 12 01.41409 01 17 02.87 +24 40 26.3          17.8 oVEX022T08
     K18X00A  C2018 12 01.42046 01 17 35.24 +24 41 00.9          16.9 oVEX022T08
     K18X00A  C2018 12 01.42122 01 17 39.48 +24 40 58.9          16.7 oVEX022T05
     K18X00A  C2018 12 01.42543 01 18 00.65 +24 41 27.7          16.8 oVEX022T08
     K18X00A  C2018 12 01.42905 01 18 19.48 +24 41 40.5          16.9 oVEX022T05
     K18X00A  C2018 12 01.43182 01 18 33.34 +24 42 01.5          17.1 oVEX022T08
     K18X00A  C2018 12 01.43745 01 19 02.37 +24 42 24.5          16.7 oVEX022T05
     K18X00A  C2018 12 01.44075 01 19 18.84 +24 42 47.2          16.6 oVEX022T08
     K18X00A  C2018 12 01.44640 01 19 47.67 +24 43 15.4          16.9 oVEX022T08
     K18X00A  C2018 12 01.45286 01 20 20.82 +24 43 41.7          16.6 oVEX022T05
     K18X00A  C2018 12 01.45334 01 20 22.90 +24 43 49.8          16.2 oVEX022T08
     K18X00A  C2018 12 01.46018 01 20 58.02 +24 44 16.9          16.2 oVEX022T05
     K18X00A  C2018 12 01.46804 01 21 37.92 +24 44 54.2          16.4 oVEX022T05
     K18X00A  C2018 12 01.47597 01 22 18.11 +24 45 30.6          16.6 oVEX022T05
     K18X00A KC2018 12 01.90095 01 56 20.56 +25 05 11.4          15.4 RVEX022K63
     K18X00A KC2018 12 01.91569 01 57 23.57 +25 05 20.2          15.8 RVEX022K63
     K18X00A KC2018 12 01.91914 01 57 38.26 +25 05 21.9          15.9 RVEX022K63
     K18X00A KC2018 12 01.92464 01 58 01.65 +25 05 24.1          15.9 RVEX022K63
     K18X00A KC2018 12 01.92793 01 58 15.63 +25 05 25.3          16.1 RVEX022K63
     K18X00A KC2018 12 01.93083 01 58 27.92 +25 05 26.4          16.1 RVEX022K63
     K18X00A #C2018 12 02.18317 02 15 57.23 +25 05 17.2          17.0 GVEX022H06
     K18X00A #C2018 12 02.18426 02 16 01.39 +25 05 15.9          17.1 GVEX022H06
     K18X00A #C2018 12 02.18536 02 16 05.51 +25 05 14.6          17.0 GVEX022H06
     K18X00A #C2018 12 02.18645 02 16 09.66 +25 05 13.2          16.8 GVEX022H06
     K18X00A KC2018 12 02.74749 02 48 41.07 +24 40 38.5          16.8 VtEX022L04
     K18X00A KC2018 12 02.75040 02 48 49.71 +24 40 29.6          16.8 VtEX022L04
     K18X00A KC2018 12 02.75543 02 49 04.65 +24 40 13.9          17.0 VtEX022L04
     K18X00A KC2018 12 02.75813 02 49 12.68 +24 40 05.3          16.8 VtEX022L04
 
Observer details:
H06 iTelescope Observatory, Mayhill.  Observer M. Suzuki.  0.43-m f/4.5
    reflector + CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.
    0.41-m f/3.2 Newtonian reflector + CCD.
L04 ROASTERR-1 Observatory, Cluj-Napoca.  Observer L. Hudin.  0.3-m f/5
    reflector + CCD.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, H. Flewelling, A. Heinze,
    H. Weiland, J. Tonry.  Measurers L. Denneau, H. Flewelling, A. Heinze,
    J. Tonry, A. Fitzsimmons, D. Young, N. Erasmus.  0.5-m f/2.0 Schmidt +
    CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, H. Flewelling, A. Heinze,
    H. Weiland, J. Tonry.  Measurers L. Denneau, H. Flewelling, A. Heinze,
    J. Tonry, A. Fitzsimmons, D. Young, N. Erasmus.  0.5-m f/2.0 Schmidt +
    CCD.
 
Orbital elements:
2018 XA                                                  Earth MOID = 0.0088 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  43.16146              (2000.0)            P               Q
n   0.23592055     Peri.  121.72226     +0.96512782     -0.25335845
a   2.5939337      Node   253.02479     +0.21078834     +0.90132763
e   0.6761571      Incl.    3.94863     +0.15523069     +0.35130898
P   4.18           H   23.4           G   0.15           U   7
Residuals in seconds of arc
181201 T08  0.8-  0.0     181201 T08  0.1-  0.0     181201 K63  0.1+  0.1-
181201 T08  0.3-  0.3+    181201 T08  0.6+  0.2-    181201 K63  0.2-  0.0
181201 T08  0.3-  0.1+    181201 T05  0.2-  0.0     181202 H06  0.4-  0.2+
181201 T08  0.6+  0.0     181201 T08  0.6-  0.0     181202 H06  0.1+  0.1+
181201 T08  2.7+  0.1+    181201 T05  0.2-  0.2-    181202 H06  0.5-  0.1+
181201 T08  0.3-  0.0     181201 T05  0.1-  0.0     181202 H06  0.1-  0.0
181201 T05  0.4-  0.0     181201 T05  0.2-  0.0     181202 L04  0.3+  0.1-
181201 T08  0.3-  0.1+    181201 K63  0.4+  0.2-    181202 L04  0.1-  0.1+
181201 T05  0.5-  0.2-    181201 K63  0.4+  0.0     181202 L04  0.1-  0.1+
181201 T08  0.5+  0.2+    181201 K63  0.2+  0.1+    181202 L04  0.2+  0.1-
181201 T05  0.1-  0.0     181201 K63  0.0   0.1-

Ephemeris:
2018 XA                  a,e,i = 2.59, 0.68, 4                   q = 0.8400
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 02    17 50 34.3 -13 55 20   0.2574  0.8466    49.1   117.6    24.8
...
2018 11 17    18 22 54.0 -11 17 23   0.1200  0.9045    42.8   132.0    24.5
...
2018 11 25    19 17 03.5 -05 27 31   0.05106 0.9550    49.8   127.9    22.3
...
2018 12 01    00 39 03.7 +23 37 11   0.02161 0.9995   127.8    51.3    17.0
2018 12 02    02 03 28.7 +25 07 50   0.02567 1.0074   146.1    33.1    16.9
2018 12 03    03 00 39.0 +24 27 17   0.03177 1.0154   158.1    21.2    17.0
...
2018 12 09    04 49 07.9 +19 25 41   0.08067 1.0654   175.6     4.1    18.4
...
2018 12 17    05 17 07.5 +17 28 28   0.1538  1.1368   172.5     6.5    20.1
...
2019 01 01    05 32 50.7 +16 49 03   0.3067  1.2789   162.3    13.5    22.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X22



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