[Iaude] MPEC B143: 2017 BT31 [a=2.28,e=0.47,i=8.2,H=23.8]

mpec at si.edu mpec at si.edu
Mon Jan 30 10:21:22 EST 2017


M.P.E.C. 2017-B143                               Issued 2017 Jan. 30, 15:17 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 BT31
 
Observations:
     K17B31T* C2017 01 28.38604 09 49 48.460+22 28 05.15         21.8 wLEB143F51
     K17B31T  C2017 01 28.39835 09 49 50.366+22 28 29.62         21.9 wLEB143F51
     K17B31T  C2017 01 28.41052 09 49 52.221+22 28 53.17         21.6 wLEB143F51
     K17B31T  C2017 01 28.42271 09 49 54.047+22 29 17.03         21.7 wLEB143F51
     K17B31T _C2017 01 29.36514509 52 31.870+22 59 14.64         21.6 GUEB143568
     K17B31T _C2017 01 29.36612709 52 32.022+22 59 16.57         21.6 GUEB143568
     K17B31T _C2017 01 29.36711309 52 32.174+22 59 18.51         21.6 GUEB143568
     K17B31T KC2017 01 30.49418 09 55 35.67 +23 34 46.0          22.0 RoEB143291
     K17B31T KC2017 01 30.49802 09 55 36.29 +23 34 53.1          21.3 RoEB143291
     K17B31T KC2017 01 30.50189 09 55 36.91 +23 35 00.0          22.2 RoEB143291
 
Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  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 BT31                                                Earth MOID = 0.2168 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M   4.40126              (2000.0)            P               Q
n   0.28634483     Peri.   14.33556     -0.69175044     -0.71132200
a   2.2796936      Node   119.60958     +0.64764350     -0.68736911
e   0.4739586      Incl.    8.23363     +0.31943579     -0.14678121
P   3.44           H   23.8           G   0.15           U   8
Residuals in seconds of arc
170128 F51  0.2-  0.1-    170129 568  0.0   0.0     170130 291  0.0   0.1+
170128 F51  0.1+  0.2+    170129 568  0.0   0.0     170130 291  0.3+  0.1-
170128 F51  0.2+  0.1-    170129 568  0.0   0.0
170128 F51  0.2-  0.0     170130 291  0.3-  0.0

Ephemeris:
2017 BT31                a,e,i = 2.28, 0.47, 8                   q = 1.1992
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 31    08 34 54.8 +10 07 17   0.2938  1.2464   149.9    23.3    22.7
...
2017 01 15    09 12 47.4 +15 35 44   0.2420  1.2126   158.9    17.0    22.0
...
2017 01 23    09 34 45.7 +19 35 58   0.2270  1.2028   162.6    14.2    21.8
...
2017 01 29    09 51 29.1 +22 47 39   0.2217  1.1995   163.9    13.2    21.7
2017 01 30    09 54 15.4 +23 19 21   0.2213  1.1993   164.0    13.1    21.7
2017 01 31    09 57 01.1 +23 50 46   0.2210  1.1992   164.0    13.1    21.7
...
2017 02 06    10 13 14.6 +26 49 40   0.2224  1.2006   163.1    13.8    21.7
...
2017 02 14    10 33 16.2 +30 06 35   0.2314  1.2079   160.3    16.0    21.9
...
2017 03 01    11 02 51.1 +33 19 36   0.2679  1.2374   154.1    20.5    22.4

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-B143




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