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  • MPEC 2017-E94 : 2017 EL4

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    M.P.E.C. 2017-E94                                Issued 2017 Mar. 13, 23:06 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 EL4
    
    Observations:
         K17E04L* C2017 03 08.40937 13 01 23.82 +30 41 37.4                qEE094G96
         K17E04L  C2017 03 08.41044 13 01 22.29 +30 41 17.7          19.9 VqEE094G96
         K17E04L  C2017 03 08.41165 13 01 20.44 +30 40 53.2          19.8 VqEE094G96
         K17E04L  C2017 03 08.41289 13 01 18.58 +30 40 29.0          19.5 VqEE094G96
         K17E04L  C2017 03 08.43604913 00 43.52 +30 32 50.4          19.6 GUEE094H01
         K17E04L  C2017 03 08.43902013 00 39.17 +30 31 52.6          20.1 GUEE094H01
         K17E04L  C2017 03 08.44934313 00 24.10 +30 28 32.0          20.1 GUEE094H01
         K17E04L  C2017 03 08.45727 13 00 13.44 +30 26 06.9          19.2 VqEE094G96
         K17E04L  C2017 03 08.45768 13 00 12.77 +30 25 59.1          20.2 VqEE094G96
         K17E04L  C2017 03 08.45774013 00 11.91 +30 25 49.3          20.2 GUEE094H01
         K17E04L  C2017 03 08.45808 13 00 12.11 +30 25 51.3          20.1 VqEE094G96
         K17E04L  C2017 03 08.45864 13 00 11.28 +30 25 40.2          20.4 VqEE094G96
         K17E04L KC2017 03 08.46297 13 00 05.09 +30 24 19.3                oEE094291
         K17E04L KC2017 03 08.46431 13 00 03.14 +30 23 53.3                oEE094291
         K17E04L KC2017 03 08.46571 13 00 01.15 +30 23 26.3                oEE094291
         K17E04L  C2017 03 08.49642 12 59 17.33 +30 13 32.6                qEE094G96
         K17E04L KC2017 03 08.49690 12 59 16.64 +30 13 26.2                oEE094291
         K17E04L  C2017 03 08.49774 12 59 15.48 +30 13 07.5                qEE094G96
         K17E04L  C2017 03 08.49815 12 59 14.96 +30 12 58.9          19.4 VqEE094G96
         K17E04L KC2017 03 08.49825 12 59 14.78 +30 13 00.2                oEE094291
         K17E04L  C2017 03 08.50451 12 59 05.94 +30 10 56.9          20.1 VqEE094I52
         K17E04L  C2017 03 08.50493 12 59 05.39 +30 10 49.2          19.7 VqEE094I52
         K17E04L  C2017 03 08.50534 12 59 04.78 +30 10 41.1          19.8 VqEE094I52
         K17E04L  C2017 03 08.50575 12 59 04.23 +30 10 33.0          19.9 VqEE094I52
         K17E04L KC2017 03 09.30983512 44 23.41 +26 31 25.0          20.8 VuEE094H21
         K17E04L KC2017 03 09.31560912 44 17.72 +26 30 03.1          20.8 VuEE094H21
         K17E04L KC2017 03 09.32233112 44 11.13 +26 28 27.7          20.5 VuEE094H21
         K17E04L  C2017 03 09.37187312 43 26.57 +26 17 10.5          19.9 GUEE094H01
         K17E04L  C2017 03 09.37506812 43 23.49 +26 16 26.0          19.6 GUEE094H01
         K17E04L  C2017 03 09.37588 12 43 23.38 +26 16 20.2          19.9 VqEE094G96
         K17E04L  C2017 03 09.37996 12 43 19.52 +26 15 23.2          19.9 VqEE094G96
         K17E04L  C2017 03 09.38121 12 43 18.28 +26 15 05.9          19.8 VqEE094G96
         K17E04L  C2017 03 09.39268712 43 06.57 +26 12 21.0          20.4 GUEE094H01
         K17E04L  C2017 03 09.39635912 43 03.07 +26 11 29.9          20.6 GUEE094H01
         K17E04L  C2017 03 10.30565 12 31 54.61 +23 10 19.7                qEE094G96
         K17E04L  C2017 03 10.30665 12 31 53.81 +23 10 09.5          20.4 VqEE094G96
         K17E04L  C2017 03 10.30764 12 31 53.18 +23 10 00.0                qEE094G96
         K17E04L  C2017 03 10.30892 12 31 52.35 +23 09 47.1                qEE094G96
         K17E04L  C2017 03 10.32637 12 31 40.53 +23 06 48.0          20.5 VqEE094I52
         K17E04L  C2017 03 10.32748 12 31 39.75 +23 06 36.6          20.5 VqEE094I52
         K17E04L  C2017 03 10.32859 12 31 39.00 +23 06 25.1          20.9 VqEE094I52
         K17E04L  C2017 03 10.32969 12 31 38.22 +23 06 14.5          19.9 VqEE094I52
    
    Observer details:
    291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  1.8-m f/2.7 reflector + CCD.
    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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + 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 EL4                                                 Earth MOID = 0.0207 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M  10.33994              (2000.0)            P               Q
    n   0.36678291     Peri.  337.71636     +0.01009068     -0.99965526
    a   1.9328433      Node   111.69861     +0.92132540     -0.00012733
    e   0.6356261      Incl.    1.49490     +0.38866140     +0.02625554
    P   2.69           H   25.5           G   0.15           U   6
    Residuals in seconds of arc
    170308 G96  0.0   0.4-    170308 291  0.9-  0.1+    170309 H01  0.1+  0.2-
    170308 G96  0.9+  0.7+    170308 G96  0.5+  0.3+    170309 G96  0.4-  0.2+
    170308 G96  0.3+  0.2-    170308 291  1.1-  0.6+    170309 G96  0.6+  0.1-
    170308 G96  0.2+  0.2-    170308 G96  0.6+  0.5+    170309 G96  0.1+  0.0
    170308 H01  0.3+  0.4-    170308 G96  1.4+  0.2-    170309 H01  0.0   0.3-
    170308 H01  0.3+  0.4-    170308 291  0.6-  0.5+    170309 H01  0.1+  0.4-
    170308 H01  0.2+  0.5-    170308 I52  0.2+  0.2-    170310 G96  0.8+  0.1-
    170308 G96  2.1+  0.1-    170308 I52  0.7+  0.1+    170310 G96  0.8-  0.1-
    170308 G96  1.1+  0.0     170308 I52  0.2+  0.1-    170310 G96  0.3-  0.5+
    170308 H01  0.0   0.3-    170308 I52  0.5+  0.4-    170310 G96  0.3+  0.7+
    170308 G96  0.1+  0.1-    170309 H21  0.2+  0.1+    170310 I52  0.3+  0.1-
    170308 G96  0.1-  0.3-    170309 H21  0.1+  0.0     170310 I52  0.1-  0.2-
    170308 291  1.1-  0.1+    170309 H21  0.2+  0.1-    170310 I52  0.1-  0.4-
    170308 291  1.3-  0.0     170309 H01  0.1+  0.2-    170310 I52  0.6-  0.2+
    
    Ephemeris:
    2017 EL4                 a,e,i = 1.93, 0.64, 1                   q = 0.7043
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 02 11    23 18 30.5 -02 09 53   0.2219  0.7967    27.5   145.1    29.3
    ...
    2017 02 26    22 54 48.7 +08 19 39   0.06990 0.9238    17.8   160.9    30.8
    ...
    2017 03 06    15 14 56.9 +49 46 30   0.02364 1.0012   112.1    66.6    19.7
    ...
    2017 03 12    12 18 23.6 +19 18 37   0.07171 1.0612   159.9    18.7    20.9
    2017 03 13    12 13 02.1 +17 41 49   0.08108 1.0713   162.2    16.5    21.1
    2017 03 14    12 08 49.9 +16 24 13   0.09056 1.0815   164.0    14.7    21.3
    ...
    2017 03 20    11 55 12.1 +12 00 31   0.1494  1.1425   168.2    10.2    22.3
    ...
    2017 03 28    11 48 25.2 +09 25 14   0.2327  1.2239   164.4    12.6    23.5
    ...
    2017 04 12    11 46 48.9 +06 50 38   0.4065  1.3741   151.8    20.2    25.2
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-E94
    

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    MPEC number:

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