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  • MPEC 2018-W05 : 2008 WS62

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    M.P.E.C. 2018-W05                                Issued 2018 Nov. 17, 03:42 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
    
                                       2008 WS62
    
                               Revision to MPEC 2008-W68
    
    Additional Observations:
         K08W62S  C2018 11 14.20407101 12 19.74 +65 10 06.6          18.11gUEW005I41
         K08W62S  C2018 11 14.20441901 12 22.58 +65 09 50.1          18.11gUEW005I41
         K08W62S  C2018 11 14.23666601 16 39.22 +64 45 06.8          17.77gUEW005I41
         K08W62S  C2018 11 14.23701301 16 42.16 +64 44 48.5          17.77gUEW005I41
         K08W62S  C2018 11 14.33021301 28 14.05 +63 30 05.3          17.12RUEW005I41
         K08W62S  C2018 11 14.33056001 28 16.69 +63 29 48.1          17.12RUEW005I41
         K08W62S  C2018 11 16.43306 03 15 32.88 +39 29 51.5          17.8 oVEW005T08
         K08W62S  C2018 11 16.44007 03 15 39.60 +39 26 23.8          17.7 oVEW005T08
         K08W62S  C2018 11 16.45361 03 15 52.23 +39 19 47.1          18.2 oVEW005T08
         K08W62S  C2018 11 16.45684 03 15 55.39 +39 18 09.6          18.1 oVEW005T08
         K08W62S KC2018 11 16.69713 03 20 43.16 +37 20 49.9          17.7 RoEW005K88
         K08W62S KC2018 11 16.70058 03 20 46.52 +37 19 21.4          17.5 RoEW005K88
         K08W62S KC2018 11 16.70404 03 20 49.85 +37 17 53.1          17.6 RoEW005K88
         K08W62S KC2018 11 16.76939 03 21 51.45 +36 49 44.2          18.0 VtEW005198
         K08W62S KC2018 11 16.77249 03 21 54.25 +36 48 26.6          18.1 VtEW005198
         K08W62S KC2018 11 16.77829 03 21 59.43 +36 46 01.0          18.0 VtEW005198
         K08W62S KC2018 11 16.78100 03 22 01.85 +36 44 53.6          18.2 VtEW005198
         K08W62S KC2018 11 16.78525 03 22 05.60 +36 43 07.6          18.2 VtEW005198
         K08W62S KC2018 11 16.78670 03 22 06.84 +36 42 31.2          18.2 VtEW005198
         K08W62S KC2018 11 16.79341 03 22 09.90 +36 40 26.3          18.0 VtEW005L04
         K08W62S KC2018 11 16.79698 03 22 12.90 +36 38 57.1          18.2 VtEW005L04
         K08W62S KC2018 11 16.79810 03 22 16.46 +36 37 41.8          17.7 RqEW005A17
         K08W62S KC2018 11 16.80054 03 22 15.88 +36 37 27.7          17.8 VtEW005L04
         K08W62S KC2018 11 16.80141 03 22 19.30 +36 36 19.8          17.7 RqEW005A17
         K08W62S KC2018 11 16.80469 03 22 22.12 +36 34 57.9          17.9 RqEW005A17
         K08W62S KC2018 11 16.80610 03 22 20.47 +36 35 08.8          17.9 VtEW005L04
         K08W62S KC2018 11 16.80797 03 22 24.96 +36 33 36.1          17.6 RqEW005A17
         K08W62S KC2018 11 16.81125 03 22 27.76 +36 32 14.9          17.5 RqEW005A17
         K08W62S KC2018 11 16.81453 03 22 30.52 +36 30 53.4          16.9 RqEW005A17
         K08W62S KC2018 11 16.91432903 23 50.09 +35 50 32.1          17.4 RVEW005K63
         K08W62S KC2018 11 16.91800903 23 52.79 +35 49 01.5          17.4 RVEW005K63
         K08W62S KC2018 11 16.92267403 23 56.31 +35 47 07.2          17.0 RVEW005K63
         K08W62S KC2018 11 16.99411703 24 46.69 +35 17 57.8          18.1 GVEW005L01
         K08W62S KC2018 11 16.99569503 24 47.81 +35 17 19.5          17.9 GVEW005L01
         K08W62S KC2018 11 16.99727903 24 48.93 +35 16 40.8          18.1 GVEW005L01
         K08W62S KC2018 11 16.99816903 24 49.57 +35 16 19.2          18.1 GVEW005L01
         K08W62S KC2018 11 17.06008 03 26 09.03 +34 51 33.0          17.8 RuEW005850
         K08W62S KC2018 11 17.07510 03 26 19.92 +34 45 54.9          18.1 RuEW005850
         K08W62S KC2018 11 17.08941 03 26 29.99 +34 40 33.1          17.5 RuEW005850
         K08W62S KC2018 11 17.10355 03 26 39.73 +34 35 17.3          17.4 RuEW005850
    
    Observer details:
    198 Wildberg.  Observer R. Apitzsch.  0.35-m f/3.1 reflector + CCD.
    850 Cordell-Lorenz Observatory, Sewanee.  Observers D. T. Durig, T. R. Potter,
        L. G. Eells, R. R. Falcon.  0.3-m f/7.6 Schmidt-Cassegrain +
        1536x1024 CCD.
    A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
        0.36-m f/6 Schmidt-Cassegrain + CCD.
    I41 Palomar Mountain--ZTF.  Observer A. U. Tomatic.  Measurers D. Streaks,
        H.-W. Lin, F. J. Masci, Q.-Z. Ye.  1.2-m f/2.4 Schmidt.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.
        0.41-m f/3.2 Newtonian reflector + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer A. Ordasi.  Measurer K. Sarneczky.
        0.60-m Schmidt + CCD.
    L01 Visnjan Observatory, Tican.  Observers K. Korlevic, G. Kervina,
        R. Jenko.  Measurer 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.
    T08 ATLAS-MLO, Mauna Loa.  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.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    181114 I41   28+   71+    181117 850   74+   40+    MPO149162   -4.9 day
    
    Orbital elements:
    2008 WS62                                                Earth MOID = 0.0132 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 147.14170              (2000.0)            P               Q
    n   0.68959916     Peri.  110.26878     +0.97708841     +0.19826845
    a   1.2688343      Node   238.36685     -0.21283283     +0.91132778
    e   0.3158436      Incl.    5.21450     +0.00065043     +0.36079259
    P   1.43           H   25.2           G   0.15           U   3
    Residuals in seconds of arc
    081124 G96  1.0-  0.4-    081130 G96  0.1-  0.2-    181116 198  0.0   0.2+
    081124 G96  0.8-  0.1-    081130 G96  0.3+  0.2+    181116 L04  0.0   0.1-
    081124 G96  0.8-  0.2-    081205 291  0.5+  0.2-    181116 L04  0.2+  0.2+
    081124 G96  0.7-  0.4-    081205 291  0.2-  0.5-    181116 A17  0.2+  0.0
    081124 H01  1.1-  0.3-    081205 291  1.1+  0.6+    181116 L04  0.3+  0.0
    081124 H01  1.2-  0.2-    181114 I41 (4.3+  7.1-)   181116 A17  0.1-  0.5+
    081124 G96  1.3-  0.7-    181114 I41 (4.3+  7.8-)   181116 A17  0.1-  0.2+
    081124 G96  2.0-  0.6-    181114 I41  1.3-  2.2-    181116 L04  0.1+  0.3+
    081124 H01  1.2-  0.4-    181114 I41 (0.1+  4.2-)   181116 A17  0.3+  0.0
    081124 G96  1.2-  0.2-    181114 I41 (2.8-  2.3-)   181116 A17  0.4+  0.4+
    081124 G96  1.6-  0.6-    181114 I41  1.5-  2.4-    181116 A17  0.1+  0.4+
    081124 H01  1.2-  0.6-    181116 T08  0.3-  0.6-    181116 K63  0.2+  0.3+
    081124 651  0.8-  0.0     181116 T08  0.4+  1.1-    181116 K63  0.2-  0.3-
    081124 651  0.5-  0.1-    181116 T08 (1.7-  2.2+)   181116 K63  0.7+  0.5-
    081124 651  0.6-  0.1-    181116 T08  0.4-  0.1+    181116 L01  0.6+  0.6+
    081125 H55 (3.5-  0.9-)   181116 K88  0.1+  0.5+    181116 L01  0.5+  0.7+
    081125 H55 (2.8-  0.8-)   181116 K88  0.2+  0.4+    181116 L01  0.4+  0.5+
    081125 H55  0.3-  0.3+    181116 K88  0.1+  0.7+    181116 L01  0.4+  0.6+
    081130 291  1.2+  0.4-    181116 198  0.1-  0.0     181117 850  0.3+  0.1+
    081130 291  1.4+  0.3+    181116 198  0.1+  0.1+    181117 850  0.7+  0.1+
    081130 291  0.1+  0.1+    181116 198  0.2+  0.2-    181117 850  0.3+  0.3-
    081130 G96  0.0   0.2+    181116 198  0.4+  0.2+    181117 850  0.1+  0.9+
    081130 G96  0.6+  0.2+    181116 198  0.4+  0.4+
    
    Ephemeris:
    2008 WS62                a,e,i = 1.27, 0.32, 5                   q = 0.8681
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 10 18    16 13 49.8 +00 36 49   0.1394  0.8977    42.0   132.1    26.6
    ...
    2018 11 02    16 31 52.3 +08 44 30   0.05947 0.9467    38.7   139.1    25.7
    ...
    2018 11 10    17 11 29.2 +32 50 03   0.02139 0.9796    59.0   119.9    21.6
    ...
    2018 11 16    03 05 55.4 +43 16 26   0.01920 1.0065   155.0    24.5    17.8
    2018 11 17    03 24 57.0 +35 17 05   0.02322 1.0111   163.6    16.1    17.9
    2018 11 18    03 36 02.1 +29 38 19   0.02763 1.0157   169.4    10.3    18.1
    ...
    2018 11 24    03 59 00.9 +15 29 32   0.05723 1.0444   175.0     4.7    19.5
    ...
    2018 12 02    04 06 29.5 +10 26 53   0.1002  1.0839   167.1    11.7    21.1
    ...
    2018 12 17    04 13 07.1 +08 29 59   0.1908  1.1599   155.0    21.0    23.0
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-W05
    

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