[Iaude] MPEC A221: 2016 LU9 [a=2.71,e=0.57,i=22.0,H=19.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Jan 13 22:13:17 EST 2019


M.P.E.C. 2019-A221                               Issued 2019 Jan. 14, 03:09 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 https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2016 LU9
 
                           Revision to MPEC 2016-L76
 
Additional Observations:
     K16L09U  C2012 12 23.56002908 13 27.732+27 46 45.11         22.2 GVEA221F51
     K16L09U  C2012 12 23.57448108 13 26.661+27 46 56.66         22.1 GVEA221F51
     K16L09U  C2012 12 23.60331208 13 24.499+27 47 20.68         22.1 GVEA221F51
     K16L09U  C2013 01 03.51332907 58 53.094+30 11 40.71         21.9 GVEA221F51
     K16L09U  C2013 01 03.52465007 58 52.107+30 11 48.79         22.8 GVEA221F51
     K16L09U  C2013 01 03.55646107 58 49.282+30 12 12.27         22.7 GVEA221F51
 
Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe,
    E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber,
    Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
121223 F51  5.0+  1.1+    130103 F51  5.4+  0.9+    MPO397877   +0.0053 day
 
Orbital elements:
2016 LU9                                                 Earth MOID = 0.3687 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 196.69967              (2000.0)            P               Q
n   0.22132425     Peri.  259.85865     +0.92700874     +0.05168866
a   2.7067619      Node    96.45045     +0.07995873     +0.94044592
e   0.5734327      Incl.   21.95185     -0.36641698     +0.33599070
P   4.45           H   19.0           G   0.15           U   2
Residuals in seconds of arc
121223 F51  0.2-  0.1+    160607 F51  0.1+  0.0     160705 F51  0.2+  0.0
121223 F51  0.1-  0.2-    160607 F51  0.3+  0.1-    160706 691  0.2+  0.8-
121223 F51  0.1-  0.1+    160608 568  0.0   0.0     160706 691  0.1-  1.1+
130103 F51  0.1+  0.3+    160608 568  0.0   0.0     160706 691  0.2+  0.0
130103 F51  0.3+  0.0     160608 568  0.0   0.0     160802 807  0.4-  0.3+
130103 F51  0.0   0.1+    160608 568  0.0   0.0     160802 807  0.2-  0.0
160605 F51  0.1+  0.1-    160615 291  0.0   0.1+    160802 807  0.1-  0.1-
160605 F51  0.1+  0.0     160615 291  0.2-  0.2+    160823 807  0.1+  0.3+
160605 F51  0.2+  0.1-    160627 705  0.7+  0.2-    160823 807  0.0   0.3+
160605 F51  0.1+  0.1-    160627 705  0.1+  0.3-    160823 807  0.2-  0.1-
160606 291  0.3+  0.2+    160627 705  0.3+  0.2-    161119 807  0.2+  0.1+
160606 291  0.1+  0.1-    160630 474  0.4-  0.0     161119 807  0.0   0.0
160606 291  1.1-  0.2+    160630 474  1.0-  0.4+    161119 807  0.1+  0.0
160607 291  0.4-  0.2-    160630 474  0.4-  0.7-    161205 807  0.4+  0.5+
160607 291  0.2+  0.2-    160630 474  0.0   0.2-    161205 807  0.3-  0.6+
160607 291  0.7+  0.3-    160705 F51  0.1-  0.1+    161205 807  0.1+  0.3-
160607 F51  0.0   0.1-    160705 F51  0.1+  0.0

Ephemeris:
2016 LU9                 a,e,i = 2.71, 0.57, 22                  q = 1.1546
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 15    12 52 29.4 +17 01 15   4.3297  4.2433    78.4    13.1    26.1
...
2018 12 30    13 00 02.2 +17 37 41   4.1130  4.2504    91.3    13.4    26.0
...
2019 01 07    13 02 54.6 +18 08 21   3.9971  4.2533    98.4    13.2    25.9
...
2019 01 13    13 04 27.7 +18 36 29   3.9118  4.2551   103.8    13.0    25.9
2019 01 14    13 04 40.0 +18 41 35   3.8978  4.2553   104.7    12.9    25.9
2019 01 15    13 04 51.4 +18 46 48   3.8839  4.2556   105.6    12.9    25.8
...
2019 01 21    13 05 39.5 +19 20 27   3.8022  4.2569   111.1    12.5    25.8
...
2019 01 29    13 05 47.6 +20 11 10   3.6993  4.2581   118.5    11.7    25.7
...
2019 02 13    13 02 58.9 +22 00 14   3.5331  4.2589   132.1     9.9    25.5

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A221



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