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  • MPEC 2019-J12 : 2019 HN4

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    M.P.E.C. 2019-J12                                Issued 2019 May 3, 04:19 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
    
                                       2019 HN4
    
    Observations:
         K19H04N* C2019 04 29.30175 12 47 37.29 +10 34 16.3          19.8 GVEJ012G96
         K19H04N  C2019 04 29.30737 12 47 34.17 +10 37 36.6          20.4 GVEJ012G96
         K19H04N  C2019 04 29.31300 12 47 31.15 +10 40 52.4          20.0 GVEJ012G96
         K19H04N  C2019 04 29.31864 12 47 28.17 +10 44 07.9          19.7 GVEJ012G96
         K19H04N  C2019 04 29.34086312 47 14.55 +10 56 21.2          19.7 GVEJ012H01
         K19H04N  C2019 04 29.34774312 47 11.36 +11 00 14.5          19.5 GVEJ012H01
         K19H04N  C2019 04 29.35575112 47 07.75 +11 04 44.3          19.8 GVEJ012H01
         K19H04N  C2019 04 29.36267912 47 04.74 +11 08 36.0          19.6 GVEJ012H01
         K19H04N KC2019 04 29.86962 12 46 38.43 +15 11 46.0          19.7 VqEJ012I93
         K19H04N KC2019 04 29.87294 12 46 37.06 +15 13 09.7          19.5 VqEJ012I93
         K19H04N KC2019 04 29.87578 12 46 35.92 +15 14 20.0          19.5 VqEJ012I93
         K19H04N KC2019 04 29.91229 12 46 13.97 +15 28 54.5          20.1 GVEJ012587
         K19H04N KC2019 04 29.91383 12 46 13.34 +15 29 31.4          20.0 GVEJ012587
         K19H04N KC2019 04 29.91493 12 46 12.91 +15 29 57.8          20.0 GVEJ012587
         K19H04N KC2019 04 29.93343612 46 13.26 +15 36 07.8          20.2 GVEJ012J95
         K19H04N KC2019 04 29.94194112 46 10.03 +15 39 28.4          19.9 GVEJ012J95
         K19H04N KC2019 04 29.94691812 46 08.19 +15 41 25.1          20.2 GVEJ012J95
         K19H04N  C2019 04 29.94785 12 45 59.38 +15 41 46.1          20.2 VVEJ012033
         K19H04N  C2019 04 29.94858 12 45 59.12 +15 42 03.1          20.2 VVEJ012033
         K19H04N  C2019 04 29.94932 12 45 58.85 +15 42 20.1          20.2 VVEJ012033
         K19H04N  C2019 04 29.95005 12 45 58.57 +15 42 37.1          20.1 VVEJ012033
         K19H04N  C2019 04 29.95079 12 45 58.33 +15 42 53.8          20.0 VVEJ012033
         K19H04N  C2019 04 29.95159 12 45 58.04 +15 43 12.6          20.0 VVEJ012033
         K19H04N  C2019 04 29.95233 12 45 57.77 +15 43 29.2          20.4 VVEJ012033
         K19H04N  C2019 04 29.95306 12 45 57.51 +15 43 46.5          20.0 VVEJ012033
         K19H04N  C2019 04 29.95380 12 45 57.25 +15 44 03.6          20.2 VVEJ012033
         K19H04N  C2019 04 29.95453 12 45 57.00 +15 44 20.6          19.8 VVEJ012033
         K19H04N  C2019 04 30.02875 12 45 33.13 +16 11 58.6          19.8 VVEJ012033
         K19H04N  C2019 04 30.02956 12 45 32.92 +16 12 15.7          20.1 VVEJ012033
         K19H04N  C2019 04 30.03036 12 45 32.70 +16 12 33.2          20.1 VVEJ012033
         K19H04N  C2019 04 30.03116 12 45 32.47 +16 12 50.6          20.3 VVEJ012033
         K19H04N  C2019 04 30.03197 12 45 32.25 +16 13 08.0          20.0 VVEJ012033
         K19H04N  C2019 04 30.03297 12 45 31.97 +16 13 29.4          20.0 VVEJ012033
         K19H04N  C2019 04 30.03377 12 45 31.75 +16 13 46.8          20.4 VVEJ012033
         K19H04N  C2019 04 30.03458 12 45 31.54 +16 14 04.4          20.2 VVEJ012033
         K19H04N  C2019 04 30.03538 12 45 31.32 +16 14 21.8          20.1 VVEJ012033
         K19H04N  C2019 04 30.84385 12 44 40.89 +20 17 20.0          20.9 VVEJ012033
         K19H04N  C2019 04 30.84494 12 44 40.60 +20 17 36.2          20.5 VVEJ012033
         K19H04N  C2019 04 30.84601 12 44 40.30 +20 17 52.2          20.6 VVEJ012033
         K19H04N  C2019 04 30.84710 12 44 40.00 +20 18 08.2          20.9 VVEJ012033
         K19H04N  C2019 04 30.84819 12 44 39.70 +20 18 24.1          21.3 VVEJ012033
         K19H04N  C2019 04 30.84946 12 44 39.35 +20 18 42.9          20.8 VVEJ012033
         K19H04N  C2019 04 30.85055 12 44 39.06 +20 18 59.0          20.6 VVEJ012033
         K19H04N  C2019 04 30.85163 12 44 38.78 +20 19 14.8          20.8 VVEJ012033
         K19H04N  C2019 04 30.85271 12 44 38.46 +20 19 30.7          20.8 VVEJ012033
         K19H04N  C2019 05 01.16613 12 44 20.42 +21 32 25.3          20.9 GVEJ012V06
         K19H04N  C2019 05 01.16777 12 44 19.95 +21 32 46.3          21.1 GVEJ012V06
         K19H04N  C2019 05 01.16940 12 44 19.44 +21 33 07.2          21.0 GVEJ012V06
         K19H04N KC2019 05 01.88279 12 43 19.80 +23 38 08.0          21.1  VEJ012104
         K19H04N KC2019 05 01.89210 12 43 17.59 +23 39 33.5          21.3  VEJ012104
         K19H04N KC2019 05 01.89351312 43 15.77 +23 39 35.2          21.0 GVEJ012L01
         K19H04N IC2019 05 01.89704712 43 14.98 +23 40 06.2          20.9 GVEJ012L01
         K19H04N KC2019 05 01.89954 12 43 15.84 +23 40 41.6          21.1  VEJ012104
         K19H04N IC2019 05 01.90055812 43 14.20 +23 40 37.0          21.0 GVEJ012L01
         K19H04N KC2019 05 02.05504412 42 51.57 +24 01 48.6          20.7 GVEJ012J95
         K19H04N KC2019 05 02.07872912 42 48.23 +24 04 55.6          21.5 GVEJ012J95
         K19H04N KC2019 05 02.08277112 43 22.04 +24 07 48.0          21.4 VuEJ012H21
         K19H04N KC2019 05 02.09293712 43 19.83 +24 09 18.4          21.5 VuEJ012H21
         K19H04N KC2019 05 02.10290212 43 17.59 +24 10 46.9          21.6 VuEJ012H21
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers C. Hoegner,
        B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    587 Sormano.  Observers A. Fumagalli, P. Sicoli, A. Testa.  Measurer
        P. Sicoli.  0.5-m f/6.8 reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne,
        D. Rankin, 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 Ritchey-Chretien + 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.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
        Schmidt-Cassegrain + CCD.
    L01 Visnjan Observatory, Tican.  Observers K. Korlevic, G. Kervina.  Measurer
        K. Korlevic.  1.0-m f/2.9 reflector + CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer B. M. Africano.  Measurers
        B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly.  1.55-m reflector +
        CCD.
    
    Orbital elements:
    2019 HN4                                                 Earth MOID = 0.0036 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 134.08711              (2000.0)            P               Q
    n   1.24506294     Peri.  209.43409     +0.39778375     -0.91427847
    a   0.8557400      Node   217.27527     +0.86455202     +0.40146485
    e   0.2270654      Incl.    7.26319     +0.30711217     +0.05404499
    P   0.79           H   28.5           G   0.15           U   6
    Residuals in seconds of arc
    190429 G96  0.1+  1.2-    190429 033  0.4-  0.1+    190430 033  0.1-  0.0
    190429 G96  0.5-  1.4+    190429 033  0.0   0.3-    190430 033  0.1-  0.1+
    190429 G96  0.2-  0.2+    190429 033  0.0   0.1+    190430 033  0.0   0.2+
    190429 G96  0.1+  0.7-    190429 033  0.1-  0.4-    190430 033  0.3+  0.2+
    190429 H01  0.0   0.2+    190429 033  0.1-  0.0     190430 033  0.0   0.3+
    190429 H01  0.1+  0.2+    190429 033  0.1-  0.1+    190501 V06  0.1-  0.2+
    190429 H01  0.0   0.2+    190429 033  0.1+  0.3+    190501 V06  0.2+  0.0
    190429 H01  0.1+  0.0     190430 033  0.2-  0.4+    190501 V06  0.0   0.0
    190429 I93  0.4-  0.0     190430 033  0.1+  0.1-    190501 104  0.3+  0.4+
    190429 I93  0.8-  1.0+    190430 033  0.1+  0.1+    190501 104  0.0   0.5+
    190429 I93  0.6-  0.7+    190430 033  0.0   0.2+    190501 L01  1.1-  0.4+
    190429 587  0.1+  0.4-    190430 033  0.1+  0.1+    190501 L01  0.8-  0.5-
    190429 587  0.0   0.3-    190430 033  0.0   0.1-    190501 104  0.2-  1.1+
    190429 587  0.2+  0.1-    190430 033  0.0   0.0     190501 L01  0.5-  1.3-
    190429 J95  0.5+  0.3-    190430 033  0.2+  0.1+    190502 J95  0.1-  0.5-
    190429 J95  0.1-  0.2-    190430 033  0.2+  0.3+    190502 J95  0.3+  0.2-
    190429 J95  0.1+  0.2-    190430 033  0.0   0.2-    190502 H21  0.3+  0.9+
    190429 033  0.1-  0.1+    190430 033  0.1+  0.1-    190502 H21  0.4+  0.5+
    190429 033  0.0   0.2+    190430 033  0.0   0.1+    190502 H21  0.0   1.0+
    190429 033  0.1-  0.0     190430 033  0.0   0.1+
    
    Ephemeris:
    2019 HN4                 a,e,i = 0.86, 0.23, 7                   q = 0.6614
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2019 04 03    00 40 31.7 -34 29 57   0.07840 0.9405    39.5   137.4    29.4
    ...
    2019 04 18    00 35 37.0 -41 01 42   0.02938 0.9868    53.8   124.8    26.0
    ...
    2019 04 26    22 34 54.1 -81 27 33   0.0048731.0068    98.2    81.5    19.8
    ...
    2019 05 02    12 43 11.9 +23 58 30   0.01668 1.0190   132.4    46.9    21.4
    2019 05 03    12 42 28.1 +25 59 33   0.01987 1.0208   129.9    49.3    21.9
    2019 05 04    12 41 59.1 +27 25 55   0.02308 1.0225   127.9    51.1    22.3
    ...
    2019 05 10    12 41 37.6 +31 11 54   0.04246 1.0317   120.4    57.6    23.8
    ...
    2019 05 18    12 44 05.5 +32 18 51   0.06816 1.0407   113.8    62.7    25.0
    ...
    2019 06 02    12 52 09.1 +31 46 41   0.1145  1.0474   103.8    70.1    26.4
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-J12
    

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