[Iaude] MPEC Y31: 2019 SJ187 [a=74.46,e=0.50,i=21.1,H=6.4]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2021-Y31                             Issued 2021 December 17, 22:06 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2019 SJ187                                   


Observations:
     K19SI7J*.C2019 09 26.05847 22 54 47.365-23 41 36.36         24.2 rVEY031807
     K19SI7J .C2019 09 26.25496 22 54 46.724-23 41 38.00         24.1 rVEY031807
     K19SI7J .C2019 11 29.05293 22 52 49.645-23 36 33.11         24.2 rVEY031304
     K19SI7J .C2019 11 30.05204 22 52 49.739-23 36 14.21         24.3 rVEY031304
     K19SI7J .C2021 09 02.20328 23 01 02.582-22 42 39.38         24.3 rVEY031304
     K19SI7J .C2021 09 03.15306 23 00 59.256-22 42 56.31         24.2 rVEY031304

Observer details:
304 Las Campanas Observatory.  Observer S. S. Sheppard.  6.5-m Magellan-Baade
    telescope + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers S. S. Sheppard, C.
    Trujillo.  Measurer S. S. Sheppard.  4.0-m CTIO reflector + CCD.

Orbital elements:
2019 SJ187                                                                      
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Alexandersen            
M 318.17118              (2000.0)            P               Q                  
n   0.00153395     Peri.   54.77965     +0.26381417     -0.95584145             
a  74.4610854      Node    21.09057     +0.72592912     +0.10834328             
e   0.5042929      Incl.   21.09208     +0.63516061     +0.27318284             
P 643              H    6.47          G   0.15           U   8                  
Residuals in seconds of arc
190926 807  0.0   0.1-    191129 304  0.0   0.1+    210902 304  0.1+  0.1-
190926 807  0.0   0.1+    191130 304  0.0   0.1-    210903 304  0.1-  0.1+

Ephemeris:
2019 SJ187               a,e,i = 74.46, 0.50, 21                 q = 36.9109
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 17    22 57 44.4 -22 47 10  60.7223 60.9324   101.8     0.9    24.5
...
2021 12 02    22 57 39.8 -22 43 01  60.9559 60.9152    87.2     0.9    24.5
...
2021 12 10    22 57 43.7 -22 40 12  61.0803 60.9061    79.4     0.9    24.5
...
2021 12 16    22 57 49.4 -22 37 51  61.1713 60.8992    73.5     0.9    24.5
2021 12 17    22 57 50.6 -22 37 26  61.1862 60.8981    72.5     0.9    24.5
2021 12 18    22 57 51.8 -22 37 01  61.2010 60.8969    71.6     0.9    24.5
...
2021 12 24    22 58 00.7 -22 34 26  61.2878 60.8900    65.7     0.8    24.5
...
2022 01 01    22 58 16.2 -22 30 44  61.3963 60.8809    58.0     0.8    24.5
...
2022 01 16    22 58 55.2 -22 23 17  61.5707 60.8637    43.7     0.6    24.5

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-Y31