[Iaude] MPEC K19: 2021 JJ9 [a=1.90,e=0.40,i=5.3,H=21.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon May 17 03:32:30 EDT 2021


M.P.E.C. 2021-K19                                  Issued 2021 May 17, 07:31 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

                                    2021 JJ9                                    


Observations:
     K21J09J*KC2021 05 15.09634 14 04 57.53 -39 42 35.1          19.6 GVEK019W94
     K21J09J KC2021 05 15.10193 14 04 58.07 -39 42 35.9          19.7 GVEK019W94
     K21J09J KC2021 05 15.10749 14 04 58.59 -39 42 37.3          19.2 GVEK019W94
     K21J09J KC2021 05 15.15037 14 05 02.55 -39 42 43.1                VEK019W95
     K21J09J KC2021 05 15.15568 14 05 03.04 -39 42 43.8                VEK019W95
     K21J09J KC2021 05 15.16096 14 05 03.55 -39 42 44.5          19.2 GVEK019W95
     K21J09J |C2021 05 16.18471 14 07 06.88 -39 44 41.1          20.1 GVEK019807
     K21J09J |C2021 05 16.18655 14 07 07.07 -39 44 41.3          19.9 GVEK019807
     K21J09J |C2021 05 16.18840 14 07 07.26 -39 44 41.4          19.9 GVEK019807
     K21J09J KC2021 05 16.20619 14 07 08.83 -39 44 47.0          18.8 GVEK019W95
     K21J09J KC2021 05 16.21148 14 07 09.38 -39 44 47.2          18.4 GVEK019W95
     K21J09J KC2021 05 16.21675 14 07 09.91 -39 44 47.3          18.4 GVEK019W95
     K21J09J KC2021 05 16.48711 14 07 46.73 -39 45 05.5          19.4 VqEK019E23
     K21J09J KC2021 05 16.50100 14 07 48.11 -39 45 08.3          20.3 VqEK019E23
     K21J09J KC2021 05 16.51488 14 07 49.45 -39 45 09.2          20.4 VqEK019E23
     K21J09J KC2021 05 17.17249 14 09 13.30 -39 46 03.9          19.3 GVEK019W95
     K21J09J KC2021 05 17.17775 14 09 13.86 -39 46 04.0          19.6 GVEK019W95
     K21J09J KC2021 05 17.18306 14 09 14.41 -39 46 03.6          19.4 GVEK019W95

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
    Horn.  1.00-m f/10.0 astrograph + CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + CCD.
W94 MAP, San Pedro de Atacama.  Observers A. Maury, G. Attard.  Measurers A.
    Maury, G. Attard, D. Parrott.  0.28-m f/2.2 Schmidt + CCD.
W95 Observatorio Panameno, San Pedro de Atacama.  Observers A. Maury, G.
    Attard, J. Fabrega.  Measurers A. Maury, G. Attard, D. Parrott.  0.40-m
    f/3.8 reflector + CCD.

Orbital elements:
2021 JJ9                                                 Earth MOID = 0.1332 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 294.22586              (2000.0)            P               Q                  
n   0.37648615     Peri.  338.48103     -0.23222899     +0.96834121             
a   1.8994887      Node   277.99894     -0.87836435     -0.24922097             
e   0.3966580      Incl.    5.30568     -0.41778675     -0.01428979             
P   2.62           H   21.99          G   0.15           U   9                  
Residuals in seconds of arc
210515 W94  0.2-  0.1+    210516 807  0.0   0.0     210516 E23  0.8+  1.3+
210515 W94  0.1+  0.3+    210516 807  0.0   0.1-    210516 E23  0.1-  0.1+
210515 W94  0.1+  0.1-    210516 807  0.0   0.1-    210516 E23  1.3-  0.5+
210515 W95  0.1-  0.3+    210516 W95  0.0   0.1+    210517 W95  0.3+  0.3-
210515 W95  0.1-  0.2+    210516 W95  0.1+  0.1-    210517 W95  0.2+  0.4-
210515 W95  0.1+  0.0     210516 W95  0.1-  0.2-    210517 W95  0.1-  0.0

Ephemeris:
2021 JJ9                 a,e,i = 1.90, 0.40, 5                   q = 1.1460
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 17    13 40 30.9 -35 09 57   0.2798  1.2633   155.2    19.5    20.7
...
2021 05 02    13 47 44.7 -38 18 58   0.2194  1.2096   154.6    20.9    20.1
...
2021 05 10    13 56 25.5 -39 21 36   0.1945  1.1868   153.3    22.5    19.9
...
2021 05 16    14 06 45.0 -39 44 15   0.1789  1.1727   152.5    23.5    19.7
2021 05 17    14 08 51.7 -39 45 40   0.1766  1.1706   152.4    23.6    19.7
2021 05 18    14 11 05.6 -39 46 21   0.1743  1.1686   152.3    23.7    19.6
...
2021 05 24    14 27 08.7 -39 33 33   0.1620  1.1583   152.2    24.1    19.5
...
2021 06 01    14 55 40.2 -38 22 03   0.1495  1.1493   153.1    23.5    19.3
...
2021 06 16    16 04 41.6 -32 39 06   0.1412  1.1477   157.6    19.7    19.0

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-K19




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