[Iaude] MPEC B19: 2017 AN20 [a=2.83,e=0.57,i=15.5,H=22.8]

[mpec at si.edu]

M.P.E.C. 2017-B19                                Issued 2017 Jan. 18, 16:24 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 AN20
 
Observations:
     K17A20N* C2017 01 03.52407 09 34 41.223-04 58 34.21         22.2 wLEB019F51
     K17A20N  C2017 01 03.53477 09 34 43.039-04 58 12.82         22.4 wLEB019F51
     K17A20N  C2017 01 03.54547 09 34 44.803-04 57 51.25         22.4 wLEB019F51
     K17A20N _C2017 01 04.56846109 37 46.342-04 22 56.33         22.0 GUEB019568
     K17A20N _C2017 01 04.56973109 37 46.555-04 22 53.65         22.0 GUEB019568
     K17A20N _C2017 01 04.57099809 37 46.765-04 22 51.01         22.0 GUEB019568
     K17A20N KC2017 01 07.34375 09 45 54.97 -02 41 25.1          22.4 RoEB019291
     K17A20N KC2017 01 07.35358 09 45 56.64 -02 41 01.8          21.9 RoEB019291
     K17A20N KC2017 01 07.36343 09 45 58.22 -02 40 39.8          22.1 RoEB019291
     K17A20N KC2017 01 18.34240 10 16 00.91 +05 26 37.5          20.9 RoEB019291
     K17A20N KC2017 01 18.35125 10 16 02.14 +05 27 02.7          21.1 RoEB019291
     K17A20N KC2017 01 18.36010 10 16 03.42 +05 27 29.3          21.2 RoEB019291
 
Observer details:
291 LPL/Spacewatch II.  Observers R. A. Mastaler, M. T. Read.  1.8-m f/2.7
    reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    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.
 
Orbital elements:
2017 AN20                                                Earth MOID = 0.2477 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M   8.97018              (2000.0)            P               Q
n   0.20670809     Peri.  342.19958     -0.39334327     -0.89651225
a   2.8328988      Node   130.43452     +0.87273880     -0.43381752
e   0.5685918      Incl.   15.53301     +0.28915057     +0.08982283
P   4.77           H   22.8           G   0.15           U   6
Residuals in seconds of arc
170103 F51  0.1-  0.0     170104 568  0.1-  0.0     170107 291  0.2-  0.2-
170103 F51  0.3+  0.1-    170104 568  0.1-  0.0     170118 291  0.1+  0.5+
170103 F51  0.1-  0.1+    170107 291  0.3-  0.2-    170118 291  0.3-  0.5-
170104 568  0.1-  0.0     170107 291  0.5+  0.5+    170118 291  0.1+  0.0

Ephemeris:
2017 AN20                a,e,i = 2.83, 0.57, 16                  q = 1.2221
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 19    08 47 43.4 -10 57 13   0.3767  1.2357   124.2    41.2    22.8
...
2017 01 03    09 33 07.3 -05 15 43   0.3210  1.2221   132.2    36.6    22.3
...
2017 01 11    09 56 20.6 -00 12 46   0.3027  1.2252   138.0    32.5    22.0
...
2017 01 17    10 12 34.1 +04 21 22   0.2953  1.2322   142.9    28.8    21.9
2017 01 18    10 15 08.0 +05 10 00   0.2947  1.2337   143.7    28.2    21.8
2017 01 19    10 17 39.2 +05 59 17   0.2942  1.2354   144.5    27.5    21.8
...
2017 01 25    10 31 42.5 +11 03 43   0.2949  1.2475   149.4    23.7    21.7
...
2017 02 02    10 47 14.4 +17 46 54   0.3060  1.2693   154.9    19.2    21.7
...
2017 02 17    11 06 03.7 +28 02 58   0.3569  1.3259   158.1    16.2    22.0

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-B19