[Iaude] MPEC X91: 2018 XN2 [a=1.62,e=0.41,i=3.1,H=24.9]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Dec 12 10:43:19 EST 2018


M.P.E.C. 2018-X91                                Issued 2018 Dec. 12, 15:38 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 XN2
 
Observations:
     K18X02N* C2018 12 10.10866 02 39 59.33 +27 31 30.5          21.1 GVEX091G96
     K18X02N  C2018 12 10.11424 02 40 02.44 +27 31 48.1          21.1 GVEX091G96
     K18X02N  C2018 12 10.11981 02 40 05.52 +27 32 06.3          21.0 GVEX091G96
     K18X02N  C2018 12 10.12539 02 40 08.65 +27 32 24.5                VEX091G96
     K18X02N  C2018 12 10.21710002 40 58.64 +27 37 07.0          20.9 GVEX091H01
     K18X02N  C2018 12 10.22024902 41 00.36 +27 37 16.5          20.8 GVEX091H01
     K18X02N  C2018 12 10.23061302 41 06.04 +27 37 47.6          20.5 GVEX091H01
     K18X02N  C2018 12 10.23771902 41 09.94 +27 38 08.8          20.7 GVEX091H01
     K18X02N  C2018 12 10.34142 02 42 07.32 +27 43 12.7          21.0 GVEX091I52
     K18X02N  C2018 12 10.34475 02 42 09.13 +27 43 21.9          21.6 GVEX091I52
     K18X02N  C2018 12 10.34808 02 42 10.98 +27 43 31.2          21.6 GVEX091I52
     K18X02N  C2018 12 10.35140 02 42 12.88 +27 43 40.9          21.1 GVEX091I52
     K18X02N pC2018 12 10.78841402 46 29.08 +28 04 41.2          21.1 GVEX091L01
     K18X02N KC2018 12 10.79014102 46 30.02 +28 04 46.3          21.3 GVEX091L01
     K18X02N pC2018 12 10.79186702 46 30.93 +28 04 51.4          21.0 GVEX091L01
     K18X02N KC2018 12 11.00293 02 48 23.36 +28 14 27.9          21   GVEX091204
     K18X02N HC2018 12 11.05580 02 48 51.75 +28 16 43.9                VEX091204
     K18X02N KC2018 12 11.06583002 49 04.10 +28 17 35.1          21.5 VuEX091H21
     K18X02N KC2018 12 11.07528202 49 09.03 +28 18 01.7          21.1 VuEX091H21
     K18X02N KC2018 12 11.08952602 49 16.46 +28 18 41.4          21.3 VuEX091H21
     K18X02N  C2018 12 12.11080 02 58 22.74 +29 01 28.8          20.2 GVEX091I52
     K18X02N  C2018 12 12.11116102 58 22.52 +29 01 28.8          20.8 GVEX091H01
     K18X02N  C2018 12 12.11413 02 58 24.35 +29 01 37.4          20.9 GVEX091I52
     K18X02N  C2018 12 12.11532502 58 24.54 +29 01 39.1          20.9 GVEX091H01
     K18X02N  C2018 12 12.11747 02 58 25.93 +29 01 44.4          20.7 GVEX091I52
     K18X02N  C2018 12 12.12827202 58 30.83 +29 02 10.6          21.3 GVEX091H01
     K18X02N  C2018 12 12.13541602 58 34.30 +29 02 27.6          20.9 GVEX091H01
 
Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson,
    G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
 
Orbital elements:
2018 XN2                                                 Earth MOID = 0.0036 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  85.89064              (2000.0)            P               Q
n   0.47783077     Peri.  329.74966     +0.89303331     -0.44763054
a   1.6203916      Node    56.91215     +0.42308518     +0.80039722
e   0.4077295      Incl.    3.14911     +0.15326590     +0.39873698
P   2.06           H   24.9           G   0.15           U   7
Residuals in seconds of arc
181210 G96  0.1-  0.3-    181210 I52  0.3-  0.0     181211 H21  0.1-  0.4+
181210 G96  0.0   0.6-    181210 I52  0.3-  0.0     181211 H21  0.1+  0.6+
181210 G96  0.1-  0.3-    181210 I52  0.3+  0.4+    181212 I52  0.5+  0.2-
181210 G96  0.4+  0.0     181210 L01  0.3-  0.1-    181212 H01  0.2-  0.0
181210 H01  0.1+  0.0     181210 L01  0.0   0.0     181212 I52  0.3+  0.3+
181210 H01  0.0   0.0     181210 L01  0.2-  0.2+    181212 H01  0.2-  0.1+
181210 H01  0.1+  0.0     181211 204  0.1+  0.3-    181212 I52  0.2-  0.9-
181210 H01  0.1+  0.1+    181211 204  0.3-  0.2+    181212 H01  0.1-  0.2+
181210 I52  0.2+  0.2+    181211 H21  0.0   0.2+    181212 H01  0.1+  0.0

Ephemeris:
2018 XN2                 a,e,i = 1.62, 0.41, 3                   q = 0.9597
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 12    20 40 38.0 -25 41 08   0.09909 0.9719    76.7    97.6    23.3
...
2018 11 27    23 39 40.1 +02 00 16   0.06184 1.0113   111.7    65.1    21.2
...
2018 12 05    01 41 03.6 +21 12 25   0.07422 1.0416   137.6    39.6    20.9
...
2018 12 11    02 48 24.8 +28 14 55   0.09678 1.0677   147.6    29.6    21.3
2018 12 12    02 57 21.7 +28 57 18   0.1012  1.0724   148.6    28.5    21.3
2018 12 13    03 05 44.5 +29 34 02   0.1059  1.0770   149.5    27.6    21.4
...
2018 12 19    03 46 04.4 +31 49 54   0.1364  1.1064   152.3    24.5    21.9
...
2018 12 27    04 21 50.2 +32 50 08   0.1832  1.1486   152.1    23.6    22.6
...
2019 01 11    05 03 25.0 +32 38 50   0.2880  1.2338   146.4    26.1    23.8

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X91



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