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  • MPEC 2017-E92 : 2017 EJ4

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    M.P.E.C. 2017-E92                                Issued 2017 Mar. 13, 23:00 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2017 EJ4
    
    Observations:
         K17E04J* C2017 03 08.26843 11 25 27.61 +36 16 02.8          20.1 VqEE092G96
         K17E04J  C2017 03 08.27268 11 25 31.43 +36 15 29.6          20.2 VqEE092G96
         K17E04J  C2017 03 08.27695 11 25 35.10 +36 14 56.9          20.1 VqEE092G96
         K17E04J  C2017 03 08.28120 11 25 38.92 +36 14 24.8          19.6 VqEE092G96
         K17E04J  C2017 03 08.43978 11 27 54.69 +35 53 20.0          20.4 VqEE092G96
         K17E04J  C2017 03 08.44300 11 27 57.45 +35 52 53.9          20.2 VqEE092G96
         K17E04J  C2017 03 08.44603 11 28 00.11 +35 52 29.1          20.4 VqEE092G96
         K17E04J  C2017 03 08.45007 11 28 03.54 +35 51 56.1          20.5 VqEE092G96
         K17E04J  C2017 03 08.47600911 28 25.81 +35 48 13.6          20.1 GUEE092H01
         K17E04J  C2017 03 08.48002011 28 29.34 +35 47 40.5          19.9 GUEE092H01
         K17E04J  C2017 03 08.48973211 28 37.86 +35 46 19.9          19.7 GUEE092H01
         K17E04J  C2017 03 08.49807411 28 45.20 +35 45 10.7          20.2 GUEE092H01
         K17E04J  C2017 03 08.50694 11 28 53.09 +35 44 05.6          20.5 VqEE092I52
         K17E04J  C2017 03 08.50735 11 28 53.46 +35 44 03.1          20.4 VqEE092I52
         K17E04J  C2017 03 08.50844 11 28 54.41 +35 43 53.4          20.4 VqEE092I52
         K17E04J  C2017 03 08.50886 11 28 54.78 +35 43 49.5          20.7 VqEE092I52
         K17E04J  C2017 03 09.27313 11 40 07.50 +34 05 47.0          20.0 VqEE092G96
         K17E04J  C2017 03 09.27747 11 40 10.83 +34 05 13.6          20.7 VqEE092G96
         K17E04J  C2017 03 09.27842 11 40 11.51 +34 05 06.4          20.8 VqEE092G96
         K17E04J  C2017 03 09.28001 11 40 12.68 +34 04 54.7          20.4 VqEE092G96
         K17E04J  C2017 03 09.31513 11 40 38.76 +34 00 29.9          20.4 VqEE092I52
         K17E04J  C2017 03 09.31857 11 40 41.28 +34 00 03.2          19.7 VqEE092I52
         K17E04J  C2017 03 09.32003 11 40 42.42 +33 59 52.2          20.1 VqEE092I52
         K17E04J  C2017 03 10.29210 11 53 01.35 +31 58 14.9          20.8 VqEE092G96
         K17E04J  C2017 03 10.29674 11 53 04.34 +31 57 41.0          20.9 VqEE092G96
         K17E04J  C2017 03 10.29791 11 53 05.10 +31 57 33.4          20.0 VqEE092G96
         K17E04J  C2017 03 10.29909 11 53 05.82 +31 57 24.3          20.6 VqEE092G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers E. J. Christensen,
        D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
        S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
        1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
        R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    
    Orbital elements:
    2017 EJ4                                                 Earth MOID = 0.0221 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M   0.21600              (2000.0)            P               Q
    n   0.36388749     Peri.   16.02672     -0.79723727     -0.60291387
    a   1.9430828      Node   126.85524     +0.54963586     -0.74561407
    e   0.4819356      Incl.    2.15773     +0.24962602     -0.28382129
    P   2.71           H   25.4           G   0.15           U   7
    Residuals in seconds of arc
    170308 G96  1.4-  0.0     170308 H01  0.1+  0.0     170309 G96  0.4+  0.6-
    170308 G96  0.2+  0.5-    170308 H01  0.2+  0.1-    170309 G96  0.2+  0.3-
    170308 G96  0.1-  0.3-    170308 H01  0.3+  0.1-    170309 I52  0.6-  0.4+
    170308 G96  1.6+  0.4+    170308 I52  0.0   0.1-    170309 I52  1.0-  0.1-
    170308 G96  0.2-  0.2-    170308 I52  0.2+  0.8+    170309 I52  0.2-  0.0
    170308 G96  0.4-  0.1+    170308 I52  0.1+  0.2+    170310 G96  0.1+  0.1+
    170308 G96  0.2+  0.2+    170308 I52  0.1+  0.2-    170310 G96  0.2+  0.3-
    170308 G96  0.5-  0.3+    170309 G96  0.2-  0.3+    170310 G96  0.2+  0.6+
    170308 H01  0.1-  0.1-    170309 G96  0.8+  0.5-    170310 G96  0.3-  0.0
    
    Ephemeris:
    2017 EJ4                 a,e,i = 1.94, 0.48, 2                   q = 1.0066
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 02 11    04 07 08.3 +25 57 05   0.08256 1.0080   102.5    72.9    22.6
    ...
    2017 02 26    07 02 00.7 +46 21 40   0.04571 1.0145   121.1    56.7    20.8
    ...
    2017 03 06    10 43 46.8 +41 11 08   0.04690 1.0305   144.2    34.2    20.2
    ...
    2017 03 12    12 10 56.0 +28 39 07   0.06045 1.0477   152.8    25.7    20.6
    2017 03 13    12 19 41.4 +26 51 53   0.06340 1.0510   153.6    24.9    20.7
    2017 03 14    12 27 22.4 +25 11 47   0.06650 1.0544   154.2    24.2    20.8
    ...
    2017 03 20    12 58 01.5 +17 24 07   0.08748 1.0771   157.3    20.9    21.3
    ...
    2017 03 28    13 16 57.6 +11 01 04   0.1202  1.1127   161.3    16.7    21.9
    ...
    2017 04 12    13 29 08.1 +04 27 14   0.1946  1.1927   166.8    11.0    22.9
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-E92
    

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