[Iaude] MPEC X134: 2018 XT4 [a=1.54,e=0.35,i=3.7,H=26.5]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Dec 15 13:23:16 EST 2018


M.P.E.C. 2018-X134                               Issued 2018 Dec. 15, 18:18 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 XT4
 
Observations:
     K18X04T* C2018 12 14.41655 08 33 58.51 -00 26 19.8          21.2 GVEX134G96
     K18X04T  C2018 12 14.42216 08 34 03.67 -00 25 55.2          20.5 GVEX134G96
     K18X04T  C2018 12 14.42777 08 34 08.74 -00 25 31.3          20.5 GVEX134G96
     K18X04T  C2018 12 14.43339 08 34 13.94 -00 25 06.5          21.2 GVEX134G96
     K18X04T  C2018 12 14.45637408 34 34.22 -00 23 31.2          21.1 GVEX134H01
     K18X04T  C2018 12 14.45983708 34 37.39 -00 23 16.1          20.4 GVEX134H01
     K18X04T  C2018 12 14.47039308 34 47.09 -00 22 30.1          20.8 GVEX134H01
     K18X04T  C2018 12 14.47791008 34 54.01 -00 21 57.2          20.8 GVEX134H01
     K18X04T  C2018 12 14.48826 08 35 04.22 -00 21 06.6          20.9 GVEX134I52
     K18X04T  C2018 12 14.49066 08 35 06.43 -00 20 56.7          20.8 GVEX134I52
     K18X04T  C2018 12 14.49548 08 35 10.86 -00 20 35.7          21.5 GVEX134I52
     K18X04T  C2018 12 14.53732 08 35 49.52 -00 17 33.4          21.2 GVEX134I52
     K18X04T  C2018 12 14.53973 08 35 51.75 -00 17 23.1          20.9 GVEX134I52
     K18X04T  C2018 12 14.54214 08 35 54.01 -00 17 12.9          21.4 GVEX134I52
     K18X04T HC2018 12 15.10032 08 45 12.20 +00 22 26.2                VEX134204
     K18X04T HC2018 12 15.12192 08 45 31.81 +00 23 58.6          21   GVEX134204
     K18X04T  C2018 12 15.41096 08 50 15.20 +00 45 19.9                VEX134G96
     K18X04T  C2018 12 15.41171 08 50 15.80 +00 45 23.8                VEX134G96
     K18X04T  C2018 12 15.41246 08 50 16.41 +00 45 27.8          21.3 GVEX134G96
 
Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
G96 Mt. Lemmon Survey.  Observers A. R. Gibbs, 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.  1.5-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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.
    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.
 
Orbital elements:
2018 XT4                                                 Earth MOID = 0.0219 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  64.84151              (2000.0)            P               Q
n   0.51649161     Peri.  358.34111     -0.04774232     -0.99683536
a   1.5384871      Node    94.39200     +0.91716835     -0.06895275
e   0.3466815      Incl.    3.65495     +0.39562973     +0.03955732
P   1.91           H   26.5           G   0.15           U   6
Residuals in seconds of arc
181214 G96  0.1+  0.1-    181214 H01  0.0   0.0     181215 204  0.2-  0.1+
181214 G96  0.4+  0.0     181214 I52  0.1-  0.2+    181215 204  0.1-  0.5-
181214 G96  0.7-  0.6-    181214 I52  0.0   0.3-    181215 G96  0.9+  1.0-
181214 G96  0.1+  0.3-    181214 I52  0.0   0.4-    181215 G96  0.0   0.3-
181214 H01  0.1+  0.1-    181214 I52  0.0   0.6-    181215 G96  0.8-  0.5+
181214 H01  0.1-  0.1-    181214 I52  0.1-  0.8-
181214 H01  0.1-  0.1-    181214 I52  0.1+  1.1-

Ephemeris:
2018 XT4                 a,e,i = 1.54, 0.35, 4                   q = 1.0051
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 15    03 37 44.4 -10 49 29   0.09376 1.0718   150.5    27.0    22.7
...
2018 11 30    05 02 00.9 -11 34 37   0.05258 1.0301   145.5    32.9    21.5
...
2018 12 08    06 44 41.7 -07 32 49   0.03934 1.0156   140.0    38.6    21.1
...
2018 12 14    08 26 57.8 -00 54 38   0.03761 1.0087   129.4    49.0    21.2
2018 12 15    08 43 32.9 +00 17 54   0.03812 1.0079   127.4    50.9    21.3
2018 12 16    08 59 31.6 +01 28 46   0.03885 1.0072   125.4    52.8    21.4
...
2018 12 22    10 18 20.2 +07 20 36   0.04678 1.0051   116.0    61.6    22.1
...
2018 12 30    11 21 05.1 +11 52 22   0.06275 1.0079   111.4    65.3    22.8
...
2019 01 14    12 09 57.7 +16 05 50   0.09673 1.0302   116.4    58.7    23.6

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X134



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