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  • MPEC 2019-U90 : 2019 US2

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    M.P.E.C. 2019-U90                              Issued 2019 October 22, 04:30 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 US2                                 
    
    
    Observations:
         K19U02S* C2019 10 20.12267 23 29 38.66 +05 49 11.9          21.7 GVEU090G96
         K19U02S  C2019 10 20.12831 23 29 37.18 +05 49 46.5          21.4 GVEU090G96
         K19U02S  C2019 10 20.13396 23 29 35.76 +05 50 19.5          21.6 GVEU090G96
         K19U02S  C2019 10 20.13961 23 29 34.27 +05 50 52.2          21.6 GVEU090G96
         K19U02S  C2019 10 20.16954123 29 26.34 +05 53 48.3          20.8 GVEU090H01
         K19U02S  C2019 10 20.17268823 29 25.51 +05 54 06.8          21.4 GVEU090H01
         K19U02S  C2019 10 20.18409623 29 22.54 +05 55 14.1          20.8 GVEU090H01
         K19U02S  C2019 10 20.19167323 29 20.57 +05 55 58.9          20.9 GVEU090H01
         K19U02S  C2019 10 20.23096 23 29 10.52 +05 59 50.1          20.6 GVEU090I52
         K19U02S  C2019 10 20.23554 23 29 09.37 +06 00 16.3          20.8 GVEU090I52
         K19U02S  C2019 10 20.24012 23 29 08.15 +06 00 44.2          21.2 GVEU090I52
         K19U02S  C2019 10 21.18755 23 25 26.26 +07 30 30.9                VEU090I52
         K19U02S  C2019 10 21.19213 23 25 25.14 +07 30 56.0                VEU090I52
         K19U02S  C2019 10 21.19672 23 25 24.05 +07 31 21.8          20.9 GVEU090I52
         K19U02S  C2019 10 21.33905923 24 51.729+07 44 30.64         21.0 GVEU090F52
         K19U02S KC2019 10 21.78078923 23 15.55 +08 23 49.0          21.5 GVEU090L01
         K19U02S KC2019 10 21.78453323 23 14.74 +08 24 08.8          21.3 GVEU090L01
         K19U02S pC2019 10 21.78827923 23 13.89 +08 24 28.7          21.4 GVEU090L01
         K19U02S KC2019 10 21.79464023 23 12.44 +08 25 03.0          21.5 GVEU090L01
         K19U02S KC2019 10 22.09659323 22 07.72 +08 51 28.4          21.5 VuEU090H21
         K19U02S KC2019 10 22.10278523 22 06.31 +08 52 00.3          21.7 VuEU090H21
         K19U02S  C2019 10 22.13487 23 22 00.08 +08 54 51.6          21.4 GVEU090I52
         K19U02S  C2019 10 22.14484 23 21 57.88 +08 55 43.6          21.5 GVEU090I52
         K19U02S  C2019 10 22.14974 23 21 56.72 +08 56 08.2          21.8 GVEU090I52
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T. 
       Lowe, E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber, 
       Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers 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, K. W. Wierzchos.  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 H. Groeller.  Measurers 
       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, K. W. Wierzchos.  1.0-m reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector + 
       CCD.
    
    Orbital elements:
    2019 US2                                                 Earth MOID = 0.1356 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Bell
    M 300.30110              (2000.0)            P               Q
    n   0.75444120     Peri.  268.64118     +0.25740595     +0.95443555
    a   1.1950492      Node    18.54699     -0.58355040     +0.27807486
    e   0.1844914      Incl.   28.33702     -0.77020199     +0.10829198
    P   1.31           H   23.4           G   0.15           U   8
    Residuals in seconds of arc
    191020 G96  0.1-  0.4-    191020 I52  0.1-  0.3-    191021 L01  0.3+  0.0
    191020 G96  0.4-  0.8+    191020 I52  0.4+  0.9-    191021 L01  0.3+  0.1+
    191020 G96  0.3+  0.4+    191020 I52  0.1-  0.1+    191021 L01  0.3+  0.6+
    191020 G96  0.0   0.3-    191021 I52  0.0   0.3-    191022 H21  0.3-  0.4-
    191020 H01  0.1+  0.1+    191021 I52  0.2-  0.4-    191022 H21  0.6-  0.7-
    191020 H01  0.0   0.0     191021 I52  0.1+  0.1+    191022 I52  0.1+  0.2+
    191020 H01  0.1-  0.1+    191021 F52  0.0   0.5+    191022 I52  0.6+  0.5+
    191020 H01  0.1-  0.3+    191021 L01  0.3-  0.1+    191022 I52  0.3-  0.3-
    
    Ephemeris:
    2019 US2                 a,e,i = 1.20, 0.18, 28                  q = 0.9746
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 09 22    03 43 58.4 -50 11 21   0.1965  1.0889   110.7    59.6    22.2
    ...
    2019 10 07    00 56 52.6 -24 23 09   0.1496  1.1321   150.3    25.9    20.7
    ...
    2019 10 15    23 55 06.4 -04 03 15   0.1710  1.1557   156.0    20.6    20.9
    ...
    2019 10 21    23 26 09.0 +07 13 25   0.2060  1.1734   146.7    27.8    21.6
    2019 10 22    23 22 27.9 +08 43 23   0.2129  1.1763   145.1    29.0    21.7
    2019 10 23    23 19 03.4 +10 07 35   0.2201  1.1793   143.4    30.2    21.8
    ...
    2019 10 29    23 03 38.4 +16 51 02   0.2672  1.1968   134.7    36.1    22.4
    ...
    2019 11 06    22 53 12.2 +22 41 23   0.3371  1.2197   125.8    41.2    23.1
    ...
    2019 11 21    22 52 19.9 +28 59 53   0.4777  1.2607   114.1    45.7    24.0
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-U90
    


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