[Iaude] MPEC Y84: 2018 XB20 [a=1.98,e=0.60,i=6.3,H=21.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Dec 27 22:59:16 EST 2018


M.P.E.C. 2018-Y84                                Issued 2018 Dec. 28, 03:55 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 XB20
 
Observations:
     K18X20B  C2018 11 06.57795404 10 55.974+12 03 53.22               VEY084F52
     K18X20B  C2018 11 06.59217604 10 55.140+12 03 40.86         22.1 GVEY084F52
     K18X20B  C2018 11 06.60643304 10 54.267+12 03 27.73         21.9 GVEY084F52
     K18X20B  C2018 11 13.38293904 03 14.882+10 14 41.11         21.7 GVEY084F52
     K18X20B  C2018 11 13.39660104 03 13.699+10 14 26.95         21.5 GVEY084F52
     K18X20B  C2018 11 13.41032904 03 12.523+10 14 12.49         22.2 GVEY084F52
     K18X20B  C2018 11 13.42405704 03 11.349+10 13 58.47         21.4 GVEY084F52
     K18X20B* C2018 12 14.24660 02 59 39.03 -01 06 20.8          21.3 GVEY084G96
     K18X20B  C2018 12 14.25245 02 59 38.19 -01 06 29.1          20.7 GVEY084G96
     K18X20B  C2018 12 14.25823 02 59 37.26 -01 06 37.2          21.7 GVEY084G96
     K18X20B  C2018 12 14.26402 02 59 36.45 -01 06 44.6          22.1 GVEY084G96
     K18X20B  C2018 12 14.33028 02 59 26.33 -01 08 17.3          20.9 GVEY084V06
     K18X20B  C2018 12 14.33463602 59 25.65 -01 08 24.2          21.0 GVEY084H01
     K18X20B  C2018 12 14.33522 02 59 25.61 -01 08 24.1          21.1 GVEY084V06
     K18X20B  C2018 12 14.33906802 59 24.97 -01 08 30.4          21.0 GVEY084H01
     K18X20B  C2018 12 14.34016 02 59 24.85 -01 08 31.1          20.9 GVEY084V06
     K18X20B  C2018 12 14.34497 02 59 24.14 -01 08 38.2          21.5 GVEY084G96
     K18X20B  C2018 12 14.34509 02 59 24.10 -01 08 38.3          20.9 GVEY084V06
     K18X20B  C2018 12 14.34573 02 59 24.01 -01 08 38.5          21.9 GVEY084G96
     K18X20B  C2018 12 14.34648 02 59 23.93 -01 08 40.5          21.9 GVEY084G96
     K18X20B  C2018 12 14.34960602 59 23.41 -01 08 45.1          20.9 GVEY084H01
     K18X20B  C2018 12 14.35753802 59 22.24 -01 08 56.1          20.9 GVEY084H01
     K18X20B  C2018 12 15.20865 02 57 20.14 -01 28 43.3          21.5 GVEY084G96
     K18X20B  C2018 12 15.21215 02 57 19.58 -01 28 48.6          21.5 GVEY084G96
     K18X20B  C2018 12 15.21562 02 57 19.06 -01 28 53.1          21.4 GVEY084G96
     K18X20B  C2018 12 15.22054 02 57 18.29 -01 28 59.7          21.0 GVEY084G96
     K18X20B |C2018 12 27.11469 02 30 08.14 -05 46 09.2          21.5 VuEY084807
     K18X20B |C2018 12 27.12021 02 30 07.39 -05 46 16.0          21.4 VuEY084807
     K18X20B |C2018 12 27.12585 02 30 06.63 -05 46 22.7          21.4 VuEY084807
 
Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes,
    T. Lowe, E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel,
    M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien
    + 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.
V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector + CCD.
 
Orbital elements:
2018 XB20                                                Earth MOID = 0.0519 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  20.44418              (2000.0)            P               Q
n   0.35282734     Peri.  325.89305     -0.95388612     -0.29846820
a   1.9834803      Node   196.82896     +0.29408127     -0.90794839
e   0.5951142      Incl.    6.32715     +0.06014545     -0.29418779
P   2.79           H   21.6           G   0.15           U   5
Residuals in seconds of arc
181106 F52  0.1-  0.1-    181214 G96  1.0+  0.2+    181214 H01  0.1-  0.0
181106 F52  0.2+  0.2+    181214 V06  0.2-  0.2+    181214 H01  0.1+  0.0
181106 F52  0.1-  0.3-    181214 H01  0.1-  0.1-    181215 G96  0.1+  0.3+
181113 F52  0.2+  0.0     181214 V06  0.1+  0.3+    181215 G96  0.3-  0.1-
181113 F52  0.1-  0.1+    181214 H01  0.3-  0.1-    181215 G96  0.1-  0.2+
181113 F52  0.1-  0.1-    181214 V06  0.1-  0.2+    181215 G96  0.5-  0.4+
181113 F52  0.0   0.2+    181214 G96  0.0   0.1-    181227 807  0.1+  0.1+
181214 G96  0.2-  0.4-    181214 V06  0.3-  0.1-    181227 807  0.1+  0.2-
181214 G96  0.6+  0.5-    181214 G96  0.2-  0.6+    181227 807  0.1+  0.1-
181214 G96  0.1-  0.5-    181214 G96  0.3+  0.3-

Ephemeris:
2018 XB20                a,e,i = 1.98, 0.60, 6                   q = 0.8031
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 28    03 37 42.2 +05 18 21   0.4736  1.4442   161.8    12.3    21.5
...
2018 12 13    03 02 40.6 -00 36 52   0.3954  1.3095   139.2    29.4    21.5
...
2018 12 21    02 43 41.1 -03 38 47   0.3681  1.2372   126.2    39.9    21.5
...
2018 12 27    02 30 23.6 -05 44 01   0.3513  1.1832   116.6    48.0    21.5
2018 12 28    02 28 16.8 -06 03 53   0.3486  1.1743   115.0    49.3    21.5
2018 12 29    02 26 12.0 -06 23 27   0.3460  1.1653   113.5    50.7    21.5
...
2019 01 04    02 14 21.5 -08 15 28   0.3307  1.1123   104.3    58.9    21.5
...
2019 01 12    01 59 53.0 -10 36 04   0.3093  1.0437    92.5    70.3    21.6
...
2019 01 27    01 29 26.7 -15 31 00   0.2599  0.9276    69.8    94.9    21.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y84



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