[Iaude] MPEC P34: 2011 EJ47 [a=1.36,e=0.36,i=13.3,H=22.0,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Aug 9 23:51:17 EDT 2018


M.P.E.C. 2018-P34                                Issued 2018 Aug. 10, 03:47 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


                                   2011 EJ47
 
                           Revision to MPEC 2011-E69
 
Additional Observations:
     K11E47J  C2018 08 07.55600 00 09 58.144+00 26 52.45         22.6 wUEP034F51
     K11E47J  C2018 08 07.56705 00 09 58.413+00 27 11.03         22.4 wUEP034F51
     K11E47J  C2018 08 07.57810 00 09 58.691+00 27 29.57         22.4 wUEP034F51
     K11E47J IC2018 08 08.42667 00 10 24.49 +00 51 37.9                oEP034711
     K11E47J KC2018 08 08.43205 00 10 24.59 +00 51 47.1                oEP034711
     K11E47J KC2018 08 08.43743 00 10 24.74 +00 51 56.6                oEP034711
 
Observer details:
711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
    reducer.
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. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
    1.8-m 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
180807 F51 0.65- 0.48-    180808 711 0.67- 0.49-    MPO199004   +0.46 day
 
Orbital elements:
2011 EJ47                                           PHA, Earth MOID = 0.0359 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 203.58964              (2000.0)            P               Q
n   0.62266936     Peri.  111.45062     +0.13505258     -0.98418165
a   1.3582021      Node   330.06842     +0.80256758     +0.17652067
e   0.3592605      Incl.   13.28522     +0.58107321     -0.01506436
P   1.58           H   22.0           G   0.15           U   2
Residuals in seconds of arc
110311 G96  0.4+  0.3-    110312 H01  0.0   0.1+    110329 291  1.1-  0.4+
110311 G96  0.0   0.2-    110312 H01  0.0   0.2+    110329 291  0.1-  0.8-
110311 G96  0.2-  0.1-    110312 H21  0.6+  0.4+    110413 568  0.1-  0.1+
110311 G96  0.0   0.3-    110312 H21  1.3+  0.1+    110413 568  0.1+  0.0
110311 H36  0.8-  0.8-    110312 H21  0.6+  0.2-    110413 568  0.1+  0.0
110311 H36  0.3+  0.2+    110312 H21  0.5+  0.8-    180807 F51  0.1-  0.0
110311 H01  0.2-  0.3+    110312 H01  0.1+  0.0     180807 F51  0.1-  0.1-
110311 H36  0.6-  0.4+    110312 H01  0.0   0.1+    180807 F51  0.2+  0.2-
110311 H01  0.0   0.2+    110324 291  0.3-  0.4+    180808 711  0.2+  0.2+
110311 H01  0.1-  0.2+    110324 291  0.0   0.1+    180808 711  0.1-  0.1+
110311 H01  0.0   0.2+    110324 291  0.0   0.2-    180808 711  0.4+  0.3+

Ephemeris:
2011 EJ47                a,e,i = 1.36, 0.36, 13                  q = 0.8703
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 11    23 45 07.3 -09 04 38   0.7581  1.5053   115.3    37.7    23.8
...
2018 07 26    00 00 54.4 -04 34 34   0.5908  1.4338   124.2    35.8    23.1
...
2018 08 03    00 07 13.6 -01 33 34   0.5081  1.3933   129.3    34.3    22.7
...
2018 08 09    00 10 41.0 +01 08 26   0.4497  1.3619   133.2    32.9    22.3
2018 08 10    00 11 07.9 +01 38 12   0.4403  1.3566   133.9    32.6    22.3
2018 08 11    00 11 32.4 +02 08 51   0.4310  1.3513   134.5    32.3    22.2
...
2018 08 17    00 13 04.4 +05 34 23   0.3775  1.3190   138.4    30.6    21.8
...
2018 08 25    00 12 10.3 +11 22 48   0.3127  1.2749   143.1    28.4    21.3
...
2018 09 09    23 55 42.2 +28 14 46   0.2168  1.1903   144.4    29.5    20.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P34



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