[Iaude] MPEC S89: 2008 EC85 = 2017 SG2 [a=2.91, e=0.72, i=54.8, H=21.1]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2017-S89                                Issued 2017 Sept. 20, 19:31 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


                             2008 EC85 = 2017 SG2
 
                          Revision to MPEC 2008-E118
 
Orbital elements:
2008 EC85 = 2017 SG2                                     Earth MOID = 0.2985 AU
Id. R. D. Matson
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 344.23094              (2000.0)            P               Q
n   0.19888142     Peri.  270.74704     +0.09657850     -0.98313062
a   2.9067426      Node   169.04836     +0.84607647     +0.16328647
e   0.7162899      Incl.   54.84525     -0.52423964     +0.08241186
P   4.96           H   21.1           G   0.15           U   2
Residuals in seconds of arc
080313 G96  0.6+  0.2+    080314 G96  0.1-  0.4-    170914 F51  0.1-  0.1-
080313 G96  0.1-  0.3-    080314 G96  0.4+  0.5-    170914 F51  0.1-  0.2-
080313 G96  0.1-  0.3-    080314 G96  0.2-  0.6-    170916 F51  0.0   0.3+
080313 G96  0.2-  0.0     080315 291  0.6-  1.3+    170916 F51  0.1+  0.0
080313 G96  0.2-  0.1+    080315 291  0.4-  0.2+    170916 F51  0.0   0.0
080313 G96  0.3+  0.1-    080315 G96  0.6-  0.1-    170917 568  0.2+  0.5-
080313 G96  0.2+  0.0     080315 G96  0.0   0.5-    170917 568  0.2+  0.1-
080313 G96  0.1+  0.0     080315 G96  0.1+  0.0     170917 568  0.3+  0.0
080313 G96  0.0   0.4-    080315 G96  0.2+  0.7-    170919 474  0.4-  0.1-
080313 G96  0.1+  0.1+    080315 G96  0.2-  0.3-    170919 474  0.2-  0.1-
080313 G96  0.5+  1.5+    080315 G96  0.3+  1.1-    170919 474  0.4+  0.2-
080313 G96  0.8+  0.2+    080315 G96  0.5-  0.1+    170919 474  0.4-  0.1+
080314 G96  0.3+  0.3+    170914 F51  0.1+  0.2+

Ephemeris:
2008 EC85                a,e,i = 2.91, 0.72, 55                  q = 0.8247
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 21    00 20 50.6 +16 50 48   0.6816  1.5680   134.7    27.3    22.5
...
2017 09 05    00 27 30.1 +00 25 50   0.4318  1.4132   155.8    17.0    20.9
...
2017 09 13    00 29 28.1 -17 33 22   0.3414  1.3304   158.9    15.8    20.2
...
2017 09 19    00 30 04.9 -36 04 18   0.3103  1.2688   144.0    27.7    20.3
2017 09 20    00 30 06.2 -39 22 28   0.3088  1.2586   140.7    30.4    20.4
2017 09 21    00 30 06.1 -42 40 49   0.3085  1.2484   137.3    33.1    20.4
...
2017 09 27    00 29 31.4 -61 20 12   0.3277  1.1879   117.1    48.7    20.9
...
2017 10 05    00 25 55.0 -79 53 36   0.3950  1.1096    95.5    63.8    21.6
...
2017 10 20    12 36 01.5 -81 16 30   0.5677  0.9761    71.4    75.2    22.4

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-S89