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  • MPEC 2019-H39 : 2019 GO21

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    M.P.E.C. 2019-H39                                Issued 2019 Apr. 22, 04:04 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 GO21
    
    Observations:
         K19G21O* C2019 04 15.34734 14 33 24.21 -20 30 13.6          19.4 GVEH039G96
         K19G21O  C2019 04 15.35308 14 33 25.08 -20 29 20.4          19.6 GVEH039G96
         K19G21O  C2019 04 15.35883 14 33 25.94 -20 28 26.8          19.6 GVEH039G96
         K19G21O  C2019 04 15.36458 14 33 26.83 -20 27 34.0          19.5 GVEH039G96
         K19G21O  C2019 04 15.39563 14 33 31.58 -20 22 45.2          19.1 GVEH039I52
         K19G21O  C2019 04 15.39605 14 33 31.62 -20 22 41.6          19.6 GVEH039I52
         K19G21O  C2019 04 15.39647 14 33 31.70 -20 22 37.2          19.6 GVEH039I52
         K19G21O  C2019 04 15.39688 14 33 31.74 -20 22 33.2          20.0 GVEH039I52
         K19G21O  C2019 04 16.30216 14 36 05.84 -17 58 44.7          19.5 GVEH039G96
         K19G21O  C2019 04 16.30245 14 36 05.86 -17 58 41.2          19.1 GVEH039G96
         K19G21O  C2019 04 16.30311 14 36 05.89 -17 58 34.1          19.9 GVEH039G96
         K19G21O  C2019 04 16.30340 14 36 05.99 -17 58 32.0          19.9 GVEH039G96
         K19G21O pC2019 04 18.95420314 43 37.81 -10 18 30.1          19.5 GVEH039L01
         K19G21O pC2019 04 18.95695614 43 38.31 -10 17 58.6          19.5 GVEH039L01
         K19G21O IC2019 04 18.96107214 43 38.92 -10 17 14.0          19.5 GVEH039L01
         K19G21O KC2019 04 19.34205314 44 43.83 -09 06 43.4          19.7 GVEH039H01
         K19G21O KC2019 04 19.34891114 44 44.91 -09 05 26.7          20.6 GVEH039H01
         K19G21O KC2019 04 19.35856114 44 46.41 -09 03 38.9          20.2 GVEH039H01
         K19G21O KC2019 04 19.36361214 44 47.20 -09 02 42.5          19.6 GVEH039H01
         K19G21O KC2019 04 21.89638 14 52 07.05 -00 54 26.0          19.5 RqEH039A17
         K19G21O KC2019 04 21.90794 14 52 08.97 -00 52 08.8          19.7 RqEH039A17
         K19G21O KC2019 04 21.92033 14 52 11.02 -00 49 41.5          19.4 RqEH039A17
         K19G21O BC2019 04 22.02949014 52 28.97 -00 28 04.6          18.9 GVEH039J95
         K19G21O KC2019 04 22.04374814 52 31.27 -00 25 14.7          19.5 GVEH039J95
         K19G21O KC2019 04 22.05779014 52 33.52 -00 22 27.2          18.9 GVEH039J95
    
    Observer details:
    A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
        0.36-m f/6 Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  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,
        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.
    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, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
        Schmidt-Cassegrain + CCD.
    L01 Visnjan Observatory, Tican.  Observers K. Korlevic, F. Valentine.
        Measurer K. Korlevic.  1.0-m f/2.9 reflector + CCD.
    
    Orbital elements:
    2019 GO21                                                Earth MOID = 0.1817 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 351.09986              (2000.0)            P               Q
    n   0.34299523     Peri.   33.70320     -0.50048632     +0.82302284
    a   2.0212064      Node   209.18450     -0.86473652     -0.49020181
    e   0.4382451      Incl.   33.42453     -0.04176363     +0.28694179
    P   2.87           H   22.2           G   0.15           U   8
    Residuals in seconds of arc
    190415 G96  0.1-  0.0     190416 G96  0.3+  0.2+    190419 H01  0.2+  0.3-
    190415 G96  0.1-  0.0     190416 G96  0.7-  0.8+    190421 A17  0.5-  0.2-
    190415 G96  0.3-  0.3+    190416 G96  0.1+  0.1+    190421 A17  0.1-  0.3-
    190415 G96  0.1-  0.3-    190418 L01  0.6-  0.4-    190421 A17  0.4+  0.2-
    190415 I52  0.2+  0.2-    190418 L01  0.3+  0.8+    190422 J95  0.1+  0.2-
    190415 I52  0.1-  0.5-    190418 L01  0.3-  0.1+    190422 J95  0.1+  0.0
    190415 I52  0.1+  0.0     190419 H01  0.1+  0.3-    190422 J95  0.1-  0.4+
    190415 I52  0.2-  0.2+    190419 H01  0.3+  0.2-
    190416 G96  0.7+  0.5-    190419 H01  0.2+  0.2-
    
    Ephemeris:
    2019 GO21                a,e,i = 2.02, 0.44, 33                  q = 1.1354
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2019 03 23    13 35 22.4 -49 23 42   0.4239  1.2999   127.7    37.3    22.4
    ...
    2019 04 07    14 10 54.3 -36 59 45   0.2707  1.2338   145.7    27.2    21.0
    ...
    2019 04 15    14 32 25.8 -21 22 54   0.2106  1.2041   161.0    15.7    20.1
    ...
    2019 04 21    14 49 30.1 -03 50 06   0.1862  1.1848   164.0    13.5    19.7
    2019 04 22    14 52 23.6 -00 33 27   0.1845  1.1819   162.1    15.1    19.7
    2019 04 23    14 55 17.4 +02 45 47   0.1834  1.1790   159.7    17.2    19.8
    ...
    2019 04 29    15 12 41.1 +22 03 37   0.1919  1.1636   141.7    32.4    20.3
    ...
    2019 05 07    15 35 16.9 +41 14 36   0.2338  1.1481   121.4    48.6    21.2
    ...
    2019 05 22    16 13 18.2 +58 05 08   0.3502  1.1355   101.6    60.8    22.4
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-H39
    

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