• MPC Preparation (Info)

    • MPEC 2018-W13 : 2018 WB

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    M.P.E.C. 2018-W13                                Issued 2018 Nov. 17, 23:14 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2018 WB

Observations:
     K18W00B* C2018 11 16.13043 00 23 43.65 -21 33 47.3          19.0 GVEW013G96
     K18W00B  C2018 11 16.13624 00 23 43.23 -21 31 10.2          18.7 GVEW013G96
     K18W00B  C2018 11 16.14202 00 23 42.84 -21 28 34.8          19.0 GVEW013G96
     K18W00B  C2018 11 16.14782 00 23 42.44 -21 26 00.1          19.2 GVEW013G96
     K18W00B  C2018 11 16.17489400 23 40.05 -21 13 51.7          19.2 GVEW013H01
     K18W00B  C2018 11 16.18284400 23 39.51 -21 10 17.0          18.9 GVEW013H01
     K18W00B  C2018 11 16.19242600 23 38.86 -21 05 58.6          18.9 GVEW013H01
     K18W00B  C2018 11 16.19592600 23 38.62 -21 04 24.2          18.9 GVEW013H01
     K18W00B  C2018 11 17.08102 00 23 31.02 -14 37 33.7          19.0 GVEW013I52
     K18W00B  C2018 11 17.08157 00 23 31.01 -14 37 19.8          19.1 GVEW013I52
     K18W00B  C2018 11 17.08212 00 23 30.99 -14 37 05.5          19.1 GVEW013I52
     K18W00B  C2018 11 17.08268 00 23 30.95 -14 36 51.3          19.3 GVEW013I52
     K18W00B  C2018 11 17.08582 00 23 30.73 -14 35 32.4          19.1 GVEW013I52
     K18W00B  C2018 11 17.08637 00 23 30.76 -14 35 17.5          19.1 GVEW013I52
     K18W00B  C2018 11 17.08692 00 23 30.66 -14 35 04.7          19.1 GVEW013I52
     K18W00B  C2018 11 17.08748 00 23 30.66 -14 34 49.4          19.2 GVEW013I52
     K18W00B KC2018 11 17.89224700 23 16.78 -09 05 21.0          19.0 GVEW013L01
     K18W00B KC2018 11 17.89402700 23 16.72 -09 04 37.8          19.0 GVEW013L01
     K18W00B pC2018 11 17.89531500 23 16.66 -09 04 07.3          18.9 GVEW013L01

Observer details:
G96 Mt. Lemmon Survey.  Observer B. M. Africano.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, J. A. Johnson, 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 R. A. Kowalski.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, J. A. Johnson, 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 WB                                                  Earth MOID = 0.0417 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 189.98800              (2000.0)            P               Q
n   0.82813726     Peri.  272.46602     +0.76829146     +0.55741291
a   1.1230554      Node    53.84626     -0.31126213     +0.75490065
e   0.2538865      Incl.   22.93697     -0.55932470     +0.34556599
P   1.19           H   23.1           G   0.15           U   6
Residuals in seconds of arc
181116 G96  0.1+  0.2-    181116 H01  0.2-  0.2+    181117 I52  0.7-  0.7-
181116 G96  0.2-  0.4+    181117 I52  0.1-  0.2-    181117 I52  0.3-  0.4+
181116 G96  0.1-  0.2+    181117 I52  0.2+  0.2-    181117 L01  0.2-  0.7-
181116 G96  0.0   1.3-    181117 I52  0.3+  0.1+    181117 L01  0.0   0.2+
181116 H01  0.2-  0.2-    181117 I52  0.2+  0.1+    181117 L01  0.1-  0.2+
181116 H01  0.1-  0.1+    181117 I52  0.6-  0.5-
181116 H01  0.2-  0.2+    181117 I52  0.3+  0.4+

Ephemeris:
2018 WB                  a,e,i = 1.12, 0.25, 23                  q = 0.8379
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 10 18    12 19 42.6 -70 31 14   0.2398  0.9093    62.1   104.4    23.6
...
2018 11 02    10 57 51.2 -87 28 22   0.1261  0.9650    73.9    98.9    22.1
...
2018 11 10    00 29 20.5 -64 49 19   0.07605 0.9978    93.4    82.3    20.4
...
2018 11 16    00 23 44.1 -22 31 12   0.06522 1.0230   119.8    57.0    19.3
2018 11 17    00 23 28.0 -15 10 49   0.06725 1.0272   123.3    53.6    19.3
2018 11 18    00 23 18.7 -08 21 39   0.07030 1.0315   126.0    50.8    19.3
...
2018 11 24    00 24 08.9 +19 24 50   0.1034  1.0570   130.2    45.5    20.0
...
2018 12 02    00 28 46.9 +34 55 05   0.1650  1.0910   125.9    47.0    21.2
...
2018 12 17    00 46 21.3 +45 09 52   0.2939  1.1527   118.3    48.7    22.6

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-W13

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