[Iaude] MPEC S126: 2017 SR11 [a=1.37,e=0.13,i=12.7,H=23.9]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2017-S126                               Issued 2017 Sept. 25, 20:12 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 SR11
 
Observations:
     K17S11R* C2017 09 19.55447 01 38 26.886+13 41 35.81         22.3 wLES126F51
     K17S11R  C2017 09 19.56721 01 38 27.827+13 40 53.64         22.2 wLES126F51
     K17S11R  C2017 09 19.57994 01 38 28.768+13 40 11.45         22.0 wLES126F51
     K17S11R KC2017 09 20.30143701 39 33.93 +13 00 01.2          22.1 VuES126H21
     K17S11R KC2017 09 20.31056001 39 34.61 +12 59 30.4          22.2 VuES126H21
     K17S11R KC2017 09 20.32028901 39 35.32 +12 58 57.9          22.4 VuES126H21
     K17S11R KC2017 09 23.27741301 43 41.26 +10 07 54.4          22.0 VuES126H21
     K17S11R KC2017 09 23.28349601 43 41.64 +10 07 32.4          22.1 VuES126H21
     K17S11R KC2017 09 23.29059001 43 42.11 +10 07 06.9          22.1 VuES126H21
     K17S11R KC2017 09 25.33370 01 46 17.04 +08 03 09.7          20.4 RoES126291
     K17S11R KC2017 09 25.34865 01 46 17.91 +08 02 14.5          20.0 RoES126291
     K17S11R KC2017 09 25.36361 01 46 18.75 +08 01 19.2                oES126291
 
Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.
 
Orbital elements:
2017 SR11                                                Earth MOID = 0.1853 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 345.86084              (2000.0)            P               Q
n   0.61329096     Peri.  183.49938     +0.99084957     -0.13396229
a   1.3720134      Node   184.30480     +0.12854928     +0.97384509
e   0.1346997      Incl.   12.67412     +0.04113645     +0.18352069
P   1.61           H   23.9           G   0.15           U   6
Residuals in seconds of arc
170919 F51  0.1-  0.0     170920 H21  0.2+  0.3-    170923 H21  0.1-  0.1-
170919 F51  0.0   0.0     170920 H21  0.2+  0.2-    170925 291  0.1-  0.1-
170919 F51  0.0   0.0     170923 H21  0.0   0.3+    170925 291  0.2+  0.0
170920 H21  0.1+  0.1-    170923 H21  0.2-  0.0     170925 291  0.0   0.0

Ephemeris:
2017 SR11                a,e,i = 1.37, 0.13, 13                  q = 1.1872
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 26    00 50 32.6 +28 00 20   0.2827  1.2014   126.8    42.3    23.2
...
2017 09 10    01 22 09.7 +21 13 00   0.2317  1.1913   138.9    33.8    22.5
...
2017 09 18    01 36 05.1 +15 05 11   0.2121  1.1884   147.0    27.4    22.1
...
2017 09 24    01 44 36.8 +09 24 56   0.2023  1.1873   153.2    22.4    21.9
2017 09 25    01 45 52.0 +08 24 02   0.2011  1.1873   154.2    21.6    21.8
2017 09 26    01 47 04.2 +07 22 13   0.2001  1.1872   155.1    20.8    21.8
...
2017 10 02    01 53 17.0 +00 59 23   0.1970  1.1875   159.6    17.1    21.7
...
2017 10 10    01 59 01.6 -07 23 09   0.2011  1.1896   160.0    16.7    21.7
...
2017 10 25    02 03 57.3 -19 25 28   0.2316  1.1980   148.5    25.7    22.3

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S126