[Iaude] MPEC X133: 2018 XS4 [a=2.45,e=0.60,i=6.4,H=25.4]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Dec 15 13:19:17 EST 2018


M.P.E.C. 2018-X133                               Issued 2018 Dec. 15, 18:14 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 XS4
 
Observations:
     K18X04S* C2018 12 14.30976023 52 17.00 +51 13 31.4          17.39oVEX133T08
     K18X04S  C2018 12 14.31854323 52 43.99 +51 18 39.3          17.59oVEX133T08
     K18X04S  C2018 12 14.32613323 53 07.55 +51 23 04.3          17.89oVEX133T08
     K18X04S  C2018 12 14.33629323 53 39.74 +51 29 00.2          17.47oVEX133T08
     K18X04S  C2018 12 14.34438423 54 05.80 +51 33 44.0          17.80oVEX133T08
     K18X04S KC2018 12 14.74333500 25 15.78 +56 06 14.4          17.9 GVEX133L01
     K18X04S KC2018 12 14.74392300 25 18.98 +56 06 41.1          17.8 GVEX133L01
     K18X04S KC2018 12 14.74650100 25 32.75 +56 08 36.1          17.5 GVEX133L01
     K18X04S KC2018 12 14.75611 00 26 30.94 +56 15 35.3          17.1 GVEX133204
     K18X04S KC2018 12 14.75820 00 26 42.35 +56 17 09.2                VEX133204
     K18X04S KC2018 12 14.76037 00 26 54.28 +56 18 46.7                VEX133204
     K18X04S KC2018 12 14.76317 00 27 09.66 +56 20 52.4                VEX133204
     K18X04S KC2018 12 14.76515 00 27 20.58 +56 22 20.8                VEX133204
     K18X04S KC2018 12 14.91998100 43 38.89 +58 16 45.3          16.9 GVEX133J95
     K18X04S KC2018 12 14.92027700 43 40.98 +58 16 58.4          16.9 GVEX133J95
     K18X04S KC2018 12 14.92059600 43 43.19 +58 17 12.5          16.8 GVEX133J95
     K18X04S KC2018 12 14.92643000 44 24.45 +58 21 31.6          17.1 GVEX133J95
     K18X04S KC2018 12 14.95262600 47 19.69 +58 41 19.8          17.2 GVEX133C95
     K18X04S KC2018 12 14.95873700 48 05.38 +58 45 46.4          17.0 GVEX133C95
     K18X04S KC2018 12 14.96485500 48 51.43 +58 50 12.6          17.3 GVEX133C95
     K18X04S KC2018 12 14.97096200 49 38.07 +58 54 38.6          16.8 GVEX133C95
     K18X04S KC2018 12 14.98901 00 51 56.85 +59 06 50.3          16.3  qEX133104
     K18X04S pC2018 12 14.99885 00 53 15.90 +59 13 56.2          16.5  qEX133104
     K18X04S mC2018 12 15.40526 02 08 36.25 +64 02 04.9          16.0 RqEX133H15
     K18X04S mC2018 12 15.41138 02 10 06.83 +64 05 06.6          16.2 RqEX133H15
     K18X04S mC2018 12 15.41750 02 11 38.25 +64 08 06.8          16.3 RqEX133H15
     K18X04S  C2018 12 15.45336 02 23 40.42 +64 40 58.6          17.2 RrEX133P93
     K18X04S  C2018 12 15.45394 02 23 49.16 +64 41 16.9          17.5 RrEX133P93
     K18X04S  C2018 12 15.45451 02 23 57.71 +64 41 34.8          17.1 RrEX133P93
     K18X04S KC2018 12 15.69502 03 37 00.92 +65 39 25.8          16.6 GVEX133587
     K18X04S KC2018 12 15.69605 03 37 20.93 +65 39 29.7                VEX133587
     K18X04S KC2018 12 15.69708 03 37 41.08 +65 39 33.3                VEX133587
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
587 Sormano.  Observers A. Fumagalli, P. Sicoli, A. Testa.  Measurer
    A. Testa.  0.5-m f/6.8 reflector + CCD.
C95 SATINO Remote Observatory, Haute Provence.  Observer J. Jahn.  0.60-m
    f/3.2 Newtonian reflector + CCD.
H15 ISON-NM Observatory, Mayhill.  Observer L. Elenin.  0.4-m f/3 reflector +
    CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
    Schmidt-Cassegrain + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
P93 Space Tracking and Communications Center, JAXA.  Observers S. Okumura,
    T. Nimura.  1.0-m f/3.0 reflector + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze,
    H. Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland,
    B. Stalder.  0.5-m reflector + CCD.
 
Orbital elements:
2018 XS4                                                 Earth MOID = 0.0070 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  34.66561              (2000.0)            P               Q
n   0.25668724     Peri.  173.74270     +0.17569107     -0.97814002
a   2.4520719      Node   266.09896     +0.89830802     +0.20551661
e   0.5966797      Incl.    6.40180     +0.40271001     -0.03170210
P   3.84           H   25.4           G   0.15           U   4
Residuals in seconds of arc
181214 T08  0.6-  0.8-    181214 204  0.2+  0.5+    181214 104  0.7+  0.4-
181214 T08  0.4-  0.1+    181214 204  0.2+  0.2+    181215 H15  1.0-  0.4-
181214 T08  1.0-  0.3-    181214 J95  0.0   0.1+    181215 H15  0.8-  1.0-
181214 T08  0.4-  0.0     181214 J95  0.1+  0.0     181215 H15  0.7-  0.3-
181214 T08  0.2+  0.4+    181214 J95  0.1-  0.1-    181215 P93  0.2+  0.6+
181214 L01  0.5+  0.2+    181214 J95  0.2+  0.0     181215 P93  0.2+  0.6+
181214 L01  0.9+  0.6+    181214 C95  0.8-  0.3-    181215 P93  0.0   0.4+
181214 L01  0.3+  0.6+    181214 C95  0.0   0.0     181215 587  0.2+  0.2+
181214 204  0.2+  0.3-    181214 C95  0.7-  0.1-    181215 587  0.0   0.1+
181214 204  0.1+  0.0     181214 C95  0.0   0.4+    181215 587  0.7+  0.2-
181214 204  0.4+  0.2+    181214 104  0.2+  1.3-

Ephemeris:
2018 XS4                 a,e,i = 2.45, 0.60, 6                   q = 0.9890
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 15    22 28 44.9 +23 34 01   0.1479  1.0550   112.6    60.0    23.5
...
2018 11 30    22 27 34.8 +25 24 34   0.07953 1.0033   100.1    75.4    22.5
...
2018 12 08    22 36 26.0 +29 35 40   0.04141 0.9908    96.7    80.9    21.3
...
2018 12 14    23 38 02.0 +48 12 35   0.01344 0.9889   109.4    69.9    18.5
2018 12 15    00 54 43.4 +59 18 00   0.0096180.9892   120.8    58.7    17.4
2018 12 16    05 15 56.4 +63 31 24   0.0072720.9897   139.7    40.1    16.3
...
2018 12 22    09 51 05.0 -08 16 39   0.02892 0.9963   115.1    63.4    19.9
...
2018 12 30    10 03 34.4 -15 31 19   0.06748 1.0146   115.9    60.7    21.7
...
2019 01 14    10 01 26.6 -16 59 42   0.1395  1.0756   128.3    45.8    23.0

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X133



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