[Iaude] MPEC U29: 2014 JC31 [a=2.56,e=0.60,i=36.9,H=19.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Mon Oct 16 20:53:17 EDT 2017


M.P.E.C. 2017-U29                                Issued 2017 Oct. 17, 00:49 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


                                   2014 JC31
 
                           Revision to MPEC 2014-J89
 
Additional Observations:
     K14J31C  C2017 10 15.49470 05 31 53.92 +05 12 18.9          20.5 RoEU029926
     K14J31C  C2017 10 15.50589 05 31 54.42 +05 12 27.8          20.4 RoEU029926
     K14J31C  C2017 10 15.51711 05 31 54.96 +05 12 38.3          20.5 RoEU029926
     K14J31C  C2017 10 16.45154 05 32 43.20 +05 26 38.2          20.9 RoEU029926
     K14J31C  C2017 10 16.45766 05 32 43.48 +05 26 44.3          20.9 RoEU029926
     K14J31C  C2017 10 16.46378 05 32 43.73 +05 26 49.2          21.1 RoEU029926
 
Observer details:
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
171015 926 0.39- 0.29-    171016 926 0.40- 0.30-    MPO300690   +0.55 day
 
Orbital elements:
2014 JC31                                                Earth MOID = 0.3220 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 323.20863              (2000.0)            P               Q
n   0.24101642     Peri.   75.32650     -0.59106926     -0.59595620
a   2.5572408      Node    64.73567     +0.28162533     -0.78395340
e   0.6015484      Incl.   36.94640     +0.75585998     -0.17393467
P   4.09           H   19.0           G   0.15           U   2
Residuals in seconds of arc
140505 F51  0.2+  0.2+    140507 568  0.0   0.1-    140520 291  0.2+  0.0
140505 F51  0.1+  0.1-    140507 568  0.0   0.2-    140528 F51  0.0   0.1-
140506 F51  0.1+  0.0     140507 568  0.0   0.1-    140528 F51  0.1-  0.1-
140506 F51  0.0   0.1+    140508 807  0.2+  0.1-    140528 F51  0.1-  0.1-
140506 F51  0.1-  0.0     140508 807  0.1+  0.5-    140528 F51  0.1-  0.2+
140506 F51  0.0   0.0     140508 807  0.1+  0.3-    140625 568  0.2-  0.0
140506 F51  0.1-  0.0     140509 807  0.1-  0.2+    140625 568  0.0   0.2+
140507 807  0.0   0.1-    140509 807  0.4-  0.2-    171015 926  0.3+  1.0+
140507 807  0.0   0.3-    140512 G96  0.0   0.2+    171015 926  0.4-  0.0
140507 807  0.1-  0.4-    140512 G96  0.4+  0.2+    171015 926  0.5-  0.6+
140507 F51  0.1+  0.1-    140518 291  0.4+  0.0     171016 926  0.1+  0.1-
140507 F51  0.0   0.2-    140518 291  0.4+  0.3-    171016 926  0.0   0.4+
140507 F51  0.2+  0.0     140520 291  0.1+  0.0     171016 926  0.6-  0.3-
140507 F51  0.2+  0.0     140520 291  0.1+  0.1+

Ephemeris:
2014 JC31                a,e,i = 2.56, 0.60, 37                  q = 1.0189
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 09 17    05 01 34.5 +00 50 14   1.4655  1.9038    99.1    31.4    22.6
...
2017 10 02    05 18 46.0 +02 37 57   1.1941  1.7845   108.5    32.1    22.0
...
2017 10 10    05 26 52.9 +03 59 55   1.0535  1.7202   113.9    32.1    21.6
...
2017 10 16    05 32 20.0 +05 19 51   0.9507  1.6717   118.2    31.7    21.4
2017 10 17    05 33 10.8 +05 35 10   0.9338  1.6636   119.0    31.6    21.3
2017 10 18    05 34 00.4 +05 51 09   0.9170  1.6555   119.7    31.5    21.2
...
2017 10 24    05 38 31.1 +07 42 55   0.8183  1.6069   124.5    30.7    20.9
...
2017 11 01    05 43 07.5 +11 08 07   0.6931  1.5422   131.6    28.8    20.4
...
2017 11 16    05 45 11.8 +22 30 03   0.4872  1.4225   147.0    22.3    19.3

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-U29




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