[Iaude] MPEC R20: 2019 QX7 [a=2.11,e=0.46,i=5.7,H=24.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Sep 3 11:32:33 EDT 2019


M.P.E.C. 2019-R20                              Issued 2019 September 3, 15:30 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2019 QX7                                    


Observations:
     K19Q07X* C2019 08 28.32267 21 29 48.678+11 20 27.71         22.1 wUER020F51
     K19Q07X  C2019 08 28.33365 21 29 51.165+11 20 10.83         21.9 wUER020F51
     K19Q07X  C2019 08 28.34461 21 29 53.649+11 19 54.11         22.0 wUER020F51
     K19Q07X  C2019 08 28.35566 21 29 56.167+11 19 36.94         21.9 wUER020F51
     K19Q07X KC2019 08 29.15743421 33 13.72 +10 58 16.3          21.8 VuER020H21
     K19Q07X KC2019 08 29.16351421 33 15.11 +10 58 06.6          21.7 VuER020H21
     K19Q07X KC2019 08 29.16959721 33 16.49 +10 57 57.4          22.1 VuER020H21
     K19Q07X ^C2019 08 29.32819921 33 56.099+10 54 00.80         21.86GVER020568
     K19Q07X ^C2019 08 29.32916121 33 56.313+10 53 59.34         21.83GVER020568
     K19Q07X KC2019 09 03.12767721 52 55.95 +08 41 55.1          22.0 VuER020H21
     K19Q07X KC2019 09 03.13376021 52 57.25 +08 41 44.9          22.2 VuER020H21
     K19Q07X KC2019 09 03.14045221 52 58.68 +08 41 34.2          21.8 VuER020H21

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, H. Januszewski, A. Petric.  Measurers 
   R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M. 
   Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. 
   Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. 
   Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.  
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0 
   astrograph + CCD.

Orbital elements:
2019 QX7                                                 Earth MOID = 0.1552 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres
M 325.75590              (2000.0)            P               Q
n   0.32056049     Peri.  128.03519     +0.73931681     +0.67314835
a   2.1144434      Node   189.69434     -0.64481809     +0.70057838
e   0.4582096      Incl.    5.72282     -0.19395949     +0.23677252
P   3.07           H   24.5           G   0.15           U   8
Residuals in seconds of arc
190828 F51  0.1+  0.1-    190829 H21  0.1+  0.3+    190829 568  0.0   0.1-
190828 F51  0.1-  0.1-    190829 H21  0.1+  0.1+    190903 H21  0.0   0.1-
190828 F51  0.2-  0.1+    190829 H21  0.0   0.5+    190903 H21  0.0   0.2-
190828 F51  0.0   0.0     190829 568  0.1+  0.1-    190903 H21  0.1-  0.2+

2019 QX7                                                                        
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres                   
M 325.75590              (2000.0)            P               Q                  
n   0.32056049     Peri.  128.03519     +0.73931681     +0.67314835             
a   2.1144434      Node   189.69434     -0.64481809     +0.70057838             
e   0.4582096      Incl.    5.72282     -0.19395949     +0.23677252             
P   3.07           H   24.5           G   0.15           U   8                  
>From 12 observations 2019 Aug. 28-Sept. 3, mean residual 0".16.                 
                                                                                
Ephemeris:
2019 QX7                 a,e,i = 2.11, 0.46, 6                   q = 1.1456
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 08 04    19 50 41.8 +16 49 11   0.1638  1.1487   142.3    32.7    22.2
...
2019 08 19    20 50 12.5 +14 48 09   0.1563  1.1482   148.4    27.5    22.0
...
2019 08 27    21 24 17.5 +11 54 32   0.1612  1.1573   153.7    22.7    21.9
...
2019 09 02    21 48 33.5 +09 13 54   0.1697  1.1683   158.0    18.9    21.9
2019 09 03    21 52 25.2 +08 45 58   0.1716  1.1705   158.7    18.2    22.0
2019 09 04    21 56 13.2 +08 17 55   0.1735  1.1727   159.4    17.6    22.0
...
2019 09 10    22 17 38.2 +05 31 31   0.1880  1.1881   162.8    14.5    22.1
...
2019 09 18    22 42 13.1 +02 10 38   0.2144  1.2133   164.9    12.4    22.3
...
2019 10 03    23 17 26.8 -02 14 28   0.2858  1.2732   160.0    15.6    23.2

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-R20




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