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    • MPEC 2013-E22 : 2013 ET9

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    M.P.E.C. 2013-E22                                Issued 2013 Mar. 6, 11:56 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2013 ET9

Observations:
     K13E09T*QC2013 03 04.64500 10 43 26.78 -19 57 04.0          19.5 VrEE022E12
     K13E09T QC2013 03 04.66402 10 43 25.26 -19 56 32.3          20.0 VrEE022E12
     K13E09T QC2013 03 04.68148 10 43 23.83 -19 56 02.6          19.3 VrEE022E12
     K13E09T QC2013 03 04.68463 10 43 23.57 -19 55 56.7          19.5 VrEE022E12
     K13E09T QC2013 03 04.72838 10 43 20.16 -19 54 42.3                rEE022E12
     K13E09T QC2013 03 04.73161 10 43 19.91 -19 54 36.4          19.1 VrEE022E12
     K13E09T KC2013 03 04.94279 10 43 07.00 -19 49 20.6          18.8 RuEE022104
     K13E09T KC2013 03 04.95227 10 43 06.25 -19 49 04.6          19.0 RuEE022104
     K13E09T KC2013 03 04.96174 10 43 05.49 -19 48 48.4          18.9 RuEE022104
     K13E09T |C2013 03 05.00617 10 43 04.23 -19 46 50.7          19.6 VuEE022807
     K13E09T |C2013 03 05.00921 10 43 04.01 -19 46 45.8          19.8 VuEE022807
     K13E09T KC2013 03 05.02927 10 43 00.15 -19 46 53.4                tEE022204
     K13E09T KC2013 03 05.03707 10 42 59.51 -19 46 39.8          19.2 RtEE022204
     K13E09T KC2013 03 05.04487 10 42 58.92 -19 46 26.4                tEE022204
     K13E09T KC2013 03 05.47640 10 42 29.77 -19 33 15.4          19.3 RoEE022474
     K13E09T KC2013 03 05.47852 10 42 29.60 -19 33 11.6          19.4 RoEE022474
     K13E09T KC2013 03 05.48062 10 42 29.40 -19 33 08.8          19.3 RoEE022474
     K13E09T QC2013 03 05.66419 10 42 14.95 -19 27 49.7          19.5 VrEE022E12
     K13E09T QC2013 03 05.66728 10 42 14.70 -19 27 44.0          19.3 VrEE022E12
     K13E09T |C2013 03 06.00299 10 41 53.84 -19 17 38.0          19.9 VuEE022807
     K13E09T |C2013 03 06.00755 10 41 53.49 -19 17 30.0          20.2 VuEE022807
     K13E09T KC2013 03 06.11613 10 41 44.53 -19 14 16.9          19.1 RuEE022822
     K13E09T KC2013 03 06.12364 10 41 43.86 -19 14 02.7          18.8 RuEE022822
     K13E09T KC2013 03 06.13007 10 41 43.39 -19 13 51.3          18.6 RuEE022822

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, L. Tesi, G. Fagioli.
    Measurer P. Bacci.  0.60-m f/4 reflector + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.38-m f/6.8 reflector
    + CCD.
474 Mount John Observatory, Lake Tekapo.  Observer A. C. Gilmore.  1.0-m f/7.7
    reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes, H. Tanquary.  0.41-m f/11
    Ritchey-Chretien + CCD.
822 Cordoba.  Observers C. Colazo, F. Mina, N. Muguiro, A. Scavuzzo.  Measurer
    C. Colazo.  0.36-m f/5.10 Schmidt-Cassegrain + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught.  0.5-m Uppsala Schmidt + CCD.

Orbital elements:
2013 ET9                                                 Earth MOID = 0.1088 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 313.94756              (2000.0)            P               Q
n   0.71148949     Peri.   72.31470     -0.12483445     +0.99137684
a   1.2426736      Node   190.75101     -0.97190983     -0.13026315
e   0.1797193      Incl.   12.33610     -0.19951851     +0.01426458
P   1.39           H   21.0           G   0.15           U   8
Residuals in seconds of arc
130304 E12  0.0   0.3+    130304 104  0.2-  0.0     130305 474  0.1-  0.7-
130304 E12  0.3+  0.2-    130305 807  0.1-  0.4+    130305 E12  0.1-  0.1+
130304 E12  0.2-  0.2-    130305 807  0.0   0.3+    130305 E12  0.0   0.2+
130304 E12  0.3-  0.3+    130305 204  0.1+  0.1-    130306 807  0.1+  0.2-
130304 E12  0.1+  0.3-    130305 204  0.1-  0.0     130306 807  0.1+  0.2-
130304 E12  0.1+  0.0     130305 204  0.3+  0.0     130306 822  0.0   0.3-
130304 104  0.4-  0.1-    130305 474  0.3+  0.0     130306 822  0.6-  0.3+
130304 104  0.2-  0.1-    130305 474  0.4+  0.1+    130306 822  0.4+  0.0

Ephemeris:
2013 ET9                 a,e,i = 1.24, 0.18, 12                  q = 1.0193
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2013 02 04    11 01 02.9 -23 45 29   0.4290  1.3109   131.7    34.2    21.2
...
2013 02 19    10 56 15.0 -23 47 21   0.3345  1.2719   143.0    27.9    20.4
...
2013 02 27    10 49 33.7 -22 06 37   0.2916  1.2501   149.4    23.8    19.9
...
2013 03 05    10 43 02.8 -19 47 15   0.2635  1.2335   153.6    20.9    19.6
2013 03 06    10 41 52.2 -19 17 57   0.2592  1.2307   154.2    20.5    19.5
2013 03 07    10 40 40.4 -18 46 49   0.2550  1.2279   154.8    20.1    19.5
...
2013 03 13    10 33 17.7 -15 00 29   0.2324  1.2110   156.8    18.8    19.2
...
2013 03 21    10 24 02.4 -08 14 58   0.2094  1.1885   154.5    21.2    19.0
...
2013 04 05    10 14 25.7 +08 06 12   0.1894  1.1469   137.3    36.2    19.2

A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-E22

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