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    • MPEC 2019-K28 : 2019 JY7

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    M.P.E.C. 2019-K28                                Issued 2019 May 24, 16:28 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 JY7

Observations:
     K19J07Y* C2019 05 14.22452 14 40 25.88 -19 38 17.7          19.5 GVEK028G96
     K19J07Y  C2019 05 14.23014 14 40 22.34 -19 37 08.7          19.8 GVEK028G96
     K19J07Y  C2019 05 14.23577 14 40 18.77 -19 35 59.0          20.2 GVEK028G96
     K19J07Y  C2019 05 14.24139 14 40 15.13 -19 34 49.2          20.1 GVEK028G96
     K19J07Y  C2019 05 14.30083014 39 35.14 -19 22 21.6          19.6 GVEK028H01
     K19J07Y  C2019 05 14.30440714 39 32.81 -19 21 35.2          19.7 GVEK028H01
     K19J07Y  C2019 05 14.31643314 39 24.98 -19 18 57.6          20.0 GVEK028H01
     K19J07Y  C2019 05 14.32210414 39 21.30 -19 17 43.0          19.7 GVEK028H01
     K19J07Y  C2019 05 14.38474 14 38 41.85 -19 03 37.7          21.0 GVEK028I52
     K19J07Y  C2019 05 14.38547 14 38 41.41 -19 03 27.4          20.8 GVEK028I52
     K19J07Y  C2019 05 14.38620 14 38 40.91 -19 03 17.0          19.9 GVEK028I52
     K19J07Y  C2019 05 14.38693 14 38 40.46 -19 03 07.1          20.0 GVEK028I52
     K19J07Y |C2019 05 15.15578 14 31 17.98 -15 35 58.3          19.3 GUEK028807
     K19J07Y |C2019 05 15.15756 14 31 16.45 -15 35 25.6          19.6 GUEK028807
     K19J07Y |C2019 05 15.15933 14 31 14.90 -15 34 53.0          19.5 GUEK028807
     K19J07Y |C2019 05 15.16111 14 31 13.36 -15 34 20.2          19.8 GUEK028807
     K19J07Y |C2019 05 15.16643 14 31 08.74 -15 32 41.8          19.9 GUEK028807
     K19J07Y KC2019 05 16.17009114 17 03.22 -09 08 54.8          19.3 VuEK028H21
     K19J07Y KC2019 05 16.17311914 16 59.43 -09 07 24.8          19.1 VuEK028H21
     K19J07Y KC2019 05 16.17574314 16 56.14 -09 06 06.4          19.2 VuEK028H21
     K19J07Y KC2019 05 16.17987914 16 50.93 -09 04 03.0          19.3 VuEK028H21

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    1.00-m f/10.0 astrograph + CCD.
G96 Mt. Lemmon Survey.  Observers A. R. Gibbs, D. Rankin.  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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  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.  1.0-m reflector +
    CCD.

Orbital elements:
2019 JY7                                                 Earth MOID = 0.0051 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 272.04747              (2000.0)            P               Q
n   0.91481186     Peri.   98.59307     +0.88274533     +0.46544420
a   1.0509487      Node   233.69273     -0.45631469     +0.81670440
e   0.2375300      Incl.    4.56984     -0.11197134     +0.34110941
P   1.08           H   27.8           G   0.15           U   7
Residuals in seconds of arc
190514 G96  0.6-  0.3-    190514 H01  0.3+  0.2+    190515 807  0.1+  0.1+
190514 G96  0.2-  0.2-    190514 I52  0.0   0.6-    190515 807  0.1+  0.1+
190514 G96  0.0   0.1+    190514 I52  0.3+  0.3-    190515 807  0.1+  0.1+
190514 G96  0.6-  0.4+    190514 I52  0.1-  0.0     190516 H21  0.2+  0.0
190514 H01  0.1+  0.1+    190514 I52  0.1+  0.1-    190516 H21  0.1+  0.1-
190514 H01  0.1+  0.1-    190515 807  0.2+  0.2+    190516 H21  0.1-  0.1+
190514 H01  0.2+  0.3+    190515 807  0.3+  0.1+    190516 H21  0.5-  0.1-

Ephemeris:
2019 JY7                 a,e,i = 1.05, 0.24, 5                   q = 0.8013
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 04 24    15 16 31.2 -32 31 57   0.1159  1.1110   154.1    23.3    24.5
...
2019 05 09    15 03 30.5 -28 29 30   0.04494 1.0535   168.6    10.9    21.9
...
2019 05 17    13 59 03.8 -00 21 02   0.01157 1.0212   150.3    29.4    19.4
...
2019 05 23    04 56 40.6 +53 54 31   0.01949 0.9965    35.4   144.0    26.7
2019 05 24    04 35 34.4 +51 02 15   0.02362 0.9924    31.2   148.1    27.7
2019 05 25    04 22 20.5 +48 53 01   0.02786 0.9883    28.3   150.9    28.6
...
2019 05 31    03 52 52.3 +42 35 25   0.05430 0.9637    22.1   156.6    31.3
...
2019 06 08    03 44 22.4 +39 21 41   0.09156 0.9316    23.4   154.4    31.8
...
2019 06 23    03 49 24.6 +36 07 23   0.1700  0.8763    31.7   142.4    30.9

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-K28

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