• Processing (Info)

    • MPEC 2017-W118: 2017 WU12

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    M.P.E.C. 2017-W118                               Issued 2017 Nov. 24, 22:33 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

                                   2017 WU12

Observations:
     K17W12U* C2017 11 19.33772 03 42 34.563+26 07 58.86         21.8 wLEW118F51
     K17W12U  C2017 11 19.34960 03 42 32.365+26 07 06.64         21.3 wLEW118F51
     K17W12U  C2017 11 19.37316 03 42 28.039+26 05 23.36         22.1 wLEW118F51
     K17W12U  C2017 11 20.23104 03 39 59.97 +25 02 33.3          21.3 RoEW118926
     K17W12U  C2017 11 20.23882 03 39 58.53 +25 01 59.1          21.0 RoEW118926
     K17W12U  C2017 11 20.24659 03 39 57.20 +25 01 25.4          21.1 RoEW118926
     K17W12U  C2017 11 20.33977 03 39 40.61 +24 54 39.2          22.4 GUEW118I52
     K17W12U  C2017 11 20.34721 03 39 39.33 +24 54 06.6          21.7 GUEW118I52
     K17W12U  C2017 11 20.35471 03 39 38.03 +24 53 34.0          21.4 GUEW118I52
     K17W12U  C2017 11 20.36221 03 39 36.67 +24 53 01.9          21.9 GUEW118I52
     K17W12U _C2017 11 20.49001703 39 15.094+24 43 49.65         20.9 GUEW118568
     K17W12U _C2017 11 20.49096203 39 14.945+24 43 45.77         20.5 GUEW118568
     K17W12U _C2017 11 20.49202403 39 14.741+24 43 40.89         20.3 GUEW118568
     K17W12U  C2017 11 22.38869 03 34 08.25 +22 28 28.8          21.1 RoEW118926
     K17W12U  C2017 11 22.39431 03 34 07.37 +22 28 06.2          21.0 RoEW118926

Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
    Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.

Orbital elements:
2017 WU12                                                Earth MOID = 0.0477 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M  33.25258              (2000.0)            P               Q
n   0.65622862     Peri.   54.74825     +0.29667092     +0.81502824
a   1.3114929      Node   240.37363     -0.94996260     +0.30521676
e   0.3483480      Incl.   34.92912     +0.09776203     +0.49251568
P   1.50           H   22.1           G   0.15           U   8
Residuals in seconds of arc
171119 F51  0.1+  0.0     171120 926  0.3+  0.3-    171120 568  0.2+  0.0
171119 F51  0.1-  0.1-    171120 I52  0.6-  0.1-    171120 568  0.5+  0.2+
171119 F51  0.0   0.2+    171120 I52  0.1-  0.2-    171120 568  0.2+  0.0
171120 926  0.5+  0.0     171120 I52  0.2+  0.1-    171122 926  0.3-  0.5-
171120 926  0.3-  0.4-    171120 I52  0.3-  0.6+    171122 926  0.1+  0.6+

Ephemeris:
2017 WU12                a,e,i = 1.31, 0.35, 35                  q = 0.8546
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 10 25    05 24 58.3 +54 01 55   0.4454  1.2847   121.5    41.3    22.5
...
2017 11 09    04 18 42.7 +39 03 22   0.4076  1.3624   151.4    20.4    21.8
...
2017 11 17    03 49 43.7 +29 02 20   0.4184  1.4016   168.8     7.9    21.5
...
2017 11 23    03 32 35.6 +21 46 07   0.4436  1.4299   174.8     3.6    21.5
2017 11 24    03 30 08.0 +20 37 49   0.4492  1.4346   173.4     4.5    21.5
2017 11 25    03 27 47.0 +19 31 07   0.4552  1.4391   171.8     5.6    21.6
...
2017 12 01    03 15 55.0 +13 29 04   0.4983  1.4661   160.9    12.7    22.2
...
2017 12 09    03 05 23.9 +07 14 32   0.5722  1.5004   147.8    20.5    22.8
...
2017 12 24    02 58 14.9 +00 15 45   0.7458  1.5594   128.2    29.7    23.7

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-W118

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