[Iaude] MPEC X51: 2018 XR [a=2.21,e=0.68,i=20.8,H=18.5,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Dec 6 17:05:17 EST 2018


M.P.E.C. 2018-X51                                Issued 2018 Dec. 6, 22:01 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 XR
 
Observations:
     K18X00R* C2018 12 03.52147 07 25 00.85 +28 14 46.5          19.1 cVEX051T05
     K18X00R  C2018 12 03.53330 07 25 01.34 +28 15 08.7          19.3 cVEX051T05
     K18X00R  C2018 12 03.53377 07 25 01.35 +28 15 09.1          19.4 cVEX051T05
     K18X00R  C2018 12 03.55785 07 25 02.30 +28 15 55.3          19.4 cVEX051T05
     K18X00R  C2018 12 03.56426 07 25 02.55 +28 16 07.1          19.0 cVEX051T05
     K18X00R  C2018 12 03.56519 07 25 02.63 +28 16 09.1          19.2 cVEX051T05
     K18X00R  C2018 12 04.32575 07 25 39.68 +28 40 24.5          19.3 GVEX051I52
     K18X00R  C2018 12 04.32865 07 25 39.80 +28 40 30.3          19.4 GVEX051I52
     K18X00R  C2018 12 04.33154 07 25 39.95 +28 40 35.7          18.9 GVEX051I52
     K18X00R IC2018 12 04.94045907 26 08.85 +29 00 40.9          19.5 GVEX051L01
     K18X00R KC2018 12 04.94317807 26 08.97 +29 00 46.3          19.5 GVEX051L01
     K18X00R KC2018 12 04.94746207 26 09.16 +29 00 54.6          19.6 GVEX051L01
     K18X00R  C2018 12 04.98597807 26 11.314+29 02 15.02         19.4 GVEX051J04
     K18X00R  C2018 12 04.98707607 26 11.348+29 02 17.34         19.6 GVEX051J04
     K18X00R  C2018 12 04.98817807 26 11.403+29 02 19.77         19.6 GVEX051J04
     K18X00R KC2018 12 04.99111 07 26 10.98 +29 02 24.2          19.1 RoEX051K88
     K18X00R KC2018 12 04.99824 07 26 11.29 +29 02 37.5          19.1 GVEX051C47
     K18X00R KC2018 12 05.00166 07 26 11.36 +29 02 44.6          18.5 RoEX051K88
     K18X00R  C2018 12 05.00602 07 26 11.66 +29 02 52.7          19.2 VSEX051033
     K18X00R  C2018 12 05.00670 07 26 11.69 +29 02 54.3          19.6 VSEX051033
     K18X00R  C2018 12 05.00737 07 26 11.71 +29 02 55.3          19.4 VSEX051033
     K18X00R KC2018 12 05.00899 07 26 11.76 +29 02 59.2          19.5 GVEX051C47
     K18X00R KC2018 12 05.01127 07 26 11.96 +29 03 04.9          19.2  VEX051104
     K18X00R KC2018 12 05.01724 07 26 12.20 +29 03 17.5          18.9  VEX051104
     K18X00R KC2018 12 05.01973 07 26 12.21 +29 03 21.0          19.4 GVEX051C47
     K18X00R KC2018 12 05.02319 07 26 12.44 +29 03 29.2          19.3  VEX051104
     K18X00R KC2018 12 05.03047 07 26 12.67 +29 03 42.8          19.4 GVEX051C47
     K18X00R KC2018 12 05.03763 07 26 12.97 +29 03 57.3          19.4 GVEX051C47
     K18X00R KC2018 12 05.03931 07 26 13.10 +29 04 01.8          18.6 RVEX051K63
     K18X00R KC2018 12 05.04235 07 26 13.25 +29 04 07.9          18.6 RVEX051K63
     K18X00R KC2018 12 05.04652 07 26 13.43 +29 04 16.3          18.9 RVEX051K63
     K18X00R KC2018 12 05.06279 07 26 14.12 +29 04 49.0          18.7 RVEX051K38
     K18X00R KC2018 12 05.07426 07 26 14.61 +29 05 12.0          18.2 RVEX051K38
     K18X00R KC2018 12 05.08725 07 26 15.09 +29 05 38.5          18.5 RVEX051K38
     K18X00R  C2018 12 05.17108 07 26 18.68 +29 08 27.4          18.2 VSEX051033
     K18X00R  C2018 12 05.17175 07 26 18.70 +29 08 28.7          18.6 VSEX051033
     K18X00R  C2018 12 05.17243 07 26 18.73 +29 08 30.0          18.5 VSEX051033
     K18X00R KC2018 12 05.19352 07 26 19.63 +29 09 14.0                VEX051204
     K18X00R KC2018 12 05.19695 07 26 19.78 +29 09 21.0                VEX051204
     K18X00R KC2018 12 05.20038 07 26 19.92 +29 09 28.0          19.1 GVEX051204
     K18X00R KC2018 12 05.84010 07 26 51.17 +29 31 32.7          19.1 VtEX051L04
     K18X00R KC2018 12 05.84923 07 26 51.54 +29 31 52.2          19.0 VtEX051L04
     K18X00R KC2018 12 05.87470 07 26 52.71 +29 32 46.6          19.2 VtEX051L04
     K18X00R KC2018 12 05.95546 07 26 56.16 +29 35 39.1          18.6 RoEX051K88
     K18X00R KC2018 12 05.96011 07 26 56.38 +29 35 49.3          18.9 RoEX051K88
     K18X00R KC2018 12 05.96476 07 26 56.57 +29 35 59.2          18.9 RoEX051K88
     K18X00R  C2018 12 06.00072407 26 58.693+29 37 18.33         19.1 GVEX051J04
     K18X00R  C2018 12 06.00182507 26 58.732+29 37 20.81         19.2 GVEX051J04
     K18X00R  C2018 12 06.00292507 26 58.787+29 37 23.34         19.2 GVEX051J04
     K18X00R KC2018 12 06.28359 07 27 11.34 +29 47 24.3          18.6 RuEX051850
     K18X00R KC2018 12 06.29073 07 27 11.60 +29 47 40.2          18.3 RuEX051850
     K18X00R KC2018 12 06.29789 07 27 11.95 +29 47 56.1          18.3 RuEX051850
     K18X00R KC2018 12 06.30500 07 27 12.08 +29 48 10.9          19.2 RuEX051850
     K18X00R KC2018 12 06.31208 07 27 12.51 +29 48 27.3          19.2 RuEX051850
     K18X00R KC2018 12 06.31915 07 27 12.71 +29 48 41.4          18.9 RuEX051850
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers F. Ludwig,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
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.
850 Cordell-Lorenz Observatory, Sewanee.  Observer D. T. Durig.  0.3-m f/7.6
    Schmidt-Cassegrain + 1536x1024 CCD.
C47 Nonndorf.  Observer G. Dangl.  0.25-m f/4.8 reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    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.
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
    M. Micheli, D. Koschny, M. Busch, E. Schwab, A. Knoefel.  1.0-m f/4.4
    reflector + CCD.
K38 M57 Observatory, Saltrio.  Observer G. Baj.  0.3-m f/5.5 Ritchey-Chretien
    + CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.
    0.41-m f/3.2 Newtonian reflector + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer A. Bodi.  Measurer K. Sarneczky.
    0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 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.
 
Orbital elements:
2018 XR                                             PHA, Earth MOID = 0.0469 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  15.88997              (2000.0)            P               Q
n   0.30041028     Peri.  114.21212     -0.91726721     +0.19431831
a   2.2079684      Node    78.52378     -0.34178930     -0.83216902
e   0.6768739      Incl.   20.77771     +0.20445279     -0.51936029
P   3.28           H   18.5           G   0.15           U   8
Residuals in seconds of arc
181203 T05  0.4+  0.1-    181205 033  0.1+  0.3+    181205 204  0.0   0.1+
181203 T05  0.4+  0.2-    181205 033  0.1-  0.0     181205 204  0.1-  0.2+
181203 T05  0.2+  0.7-    181205 C47  0.1+  0.1-    181205 L04  0.0   0.1-
181203 T05  0.4-  0.3+    181205 104  0.4+  0.1-    181205 L04  0.5-  0.1-
181203 T05  0.6-  0.0     181205 104  0.2+  0.4+    181205 L04  0.1+  0.3-
181203 T05  0.1-  0.3+    181205 C47  0.0   0.1-    181205 K88  0.4-  0.1-
181204 I52  0.0   0.3+    181205 104  0.1+  0.0     181205 K88  0.1-  0.2+
181204 I52  0.0   0.4+    181205 C47  0.1+  0.1-    181205 K88  0.2-  0.1+
181204 I52  0.4+  0.1+    181205 C47  0.1+  0.2-    181206 J04  0.1-  0.3-
181204 L01  0.1-  0.4+    181205 K63  0.2-  0.2-    181206 J04  0.2-  0.2-
181204 L01  0.1-  0.3+    181205 K63  0.1+  0.3-    181206 J04  0.1-  0.1-
181204 L01  0.0   0.2-    181205 K63  0.2+  0.3-    181206 850  0.5+  0.3-
181204 J04  0.2+  0.2-    181205 K38  0.0   0.2-    181206 850  0.2+  0.1+
181204 J04  0.0   0.1-    181205 K38  0.2+  0.5-    181206 850  1.0+  0.5+
181204 J04  0.1+  0.1+    181205 K38  0.7-  0.4-    181206 850  1.1-  0.2-
181204 K88  0.6+  0.9+    181205 033  0.1-  0.1+    181206 850  0.9+  0.9+
181204 C47  0.1-  0.1+    181205 033  0.2-  0.1+    181206 850  0.2-  0.3-
181205 K88  0.3-  0.1-    181205 033  0.2-  0.0
181205 033  0.0   0.1+    181205 204  0.1-  0.0

Ephemeris:
2018 XR                  a,e,i = 2.21, 0.68, 21                  q = 0.7135
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 06    06 58 39.9 +20 11 44   1.0541  1.7669   119.5    29.2    21.1
...
2018 11 21    07 14 02.5 +23 20 27   0.7908  1.6232   131.4    27.2    20.3
...
2018 11 29    07 21 15.7 +26 07 44   0.6620  1.5438   138.1    25.3    19.7
...
2018 12 05    07 26 11.0 +29 02 45   0.5719  1.4830   143.1    23.5    19.3
2018 12 06    07 26 57.8 +29 37 18   0.5574  1.4728   143.9    23.2    19.2
2018 12 07    07 27 43.8 +30 13 37   0.5432  1.4626   144.7    22.9    19.1
...
2018 12 13    07 32 07.9 +34 35 06   0.4620  1.4006   148.9    21.3    18.6
...
2018 12 21    07 37 45.9 +42 59 19   0.3667  1.3168   151.1    21.1    18.0
...
2019 01 05    07 57 53.6 +71 36 32   0.2453  1.1575   130.4    40.3    17.4

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X51



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