[Iaude] MPEC N83: 2019 QD8 [a=1.41,e=0.24,i=21.5,H=22.27]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Sun Jul 7 10:16:25 EDT 2024


M.P.E.C. 2024-N83                                  Issued 2024 July 7, 14:14 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 QD8                                    


                           Revision to MPEC 2019-R26                            

Additional Observations:
     K19Q08D  C2024 05 09.40139 17 17 17.13 +52 29 07.7          22.3 GVEN083V00
     K19Q08D  C2024 05 09.41505 17 17 17.81 +52 29 25.7          22.9 GVEN083V00
     K19Q08D  C2024 05 09.42066 17 17 18.04 +52 29 33.2          22.7 GVEN083V00
     K19Q08D  C2024 07 04.34302417 57 26.820+58 37 39.44         21.54wXEN083F52
     K19Q08D  C2024 07 04.35694117 57 27.510+58 37 28.60         21.64wXEN083F52
     K19Q08D  C2024 07 04.37081317 57 28.198+58 37 17.80         21.56wXEN083F52
     K19Q08D  C2024 07 04.38467017 57 28.861+58 37 06.91         21.64wXEN083F52
     K19Q08D $C2024 07 04.90339517 58 11.438+58 29 34.97               VEN083J04
     K19Q08D $C2024 07 04.92484217 58 12.568+58 29 18.96               VEN083J04
     K19Q08D 6C2024 07 05.02226 17 58 16.84 +58 27 50.9          21.7 GVEN083Z84
     K19Q08D 6C2024 07 05.03552 17 58 17.65 +58 27 38.1          21.2 GVEN083Z84
     K19Q08D 6C2024 07 05.04878 17 58 18.39 +58 27 25.7          21.8 GVEN083Z84

Observer details:
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observers D. Abreu, M. Micheli, F.
    Ocana, L. Conversi.  Measurers F. Ocana, M. Micheli, R. Kresken.
    1.0-m f/4.4 reflector + CCD.
V00 Kitt Peak-Bok.  Observer R. A. Mastaler.  Measurers B. Gray, D. Rankin, F.
    C. Shelly.  2.25-m reflector + mosaic CCD.
Z84 Calar Alto-Schmidt.  Observers M. Micheli, R. Kresken, F. Ocana.
    Measurers R. Kresken, M. Micheli, F. Ocana, L. Conversi.  0.8-m f/3
    Schmidt + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240509 V00 0.31+ 0.12+    240705 Z84 0.68+ 0.12+    MPO492684   +0.13 days

Orbital elements:
2019 QD8                                                 Earth MOID = 0.0623 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 293.93495              (2000.0)            P               Q                  
n   0.58871674     Peri.  160.42761     +0.46843132     +0.84664184             
a   1.4099329      Node   136.46784     -0.85158045     +0.50880606             
e   0.2447175      Incl.   21.50846     -0.23533558     -0.15592944             
P   1.67           H   22.27          G   0.15           U   0                  
Residuals in seconds of arc
190720 F51  0.1+  0.0     190829 568  0.1+  0.2-    240704 F52  0.2-  0.0
190720 F51 (0.6-  0.9+)   190829 568  0.3+  0.0     240704 F52  0.1-  0.1-
190720 F51  0.1-  0.0     190829 568  0.0   0.1+    240704 F52  0.1-  0.0
190720 F51 (0.6+  0.3-)   190904 568  0.1+  0.0     240704 F52  0.2-  0.3+
190828 F51  0.1-  0.3+    190904 568  0.1+  0.0     240704 J04  0.6+  0.8-
190828 F51  0.0   0.0     190904 568  0.1+  0.1-    240704 J04  0.0   0.2-
190828 F51  0.0   0.0     240509 V00  0.3-  0.1+    240705 Z84  0.1-  0.1+
190828 F51  0.2+  0.1-    240509 V00  0.3+  0.1-    240705 Z84  0.3+  0.3-
190829 F51  0.0   0.2-    240509 V00  0.1+  0.1-    240705 Z84  0.2+  0.0

Ephemeris:
2019 QD8                 a,e,i = 1.41, 0.24, 22                  q = 1.0649
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 06 07    17 36 21.0 +59 28 52   0.3676  1.1234    97.5    63.6    22.6
...
2024 06 22    17 45 19.9 +60 07 21   0.3009  1.0914    96.4    67.7    22.2
...
2024 06 30    17 52 25.1 +59 25 38   0.2595  1.0791    96.9    69.3    21.9
...
2024 07 06    17 59 37.2 +58 12 36   0.2263  1.0722    98.1    69.9    21.6
2024 07 07    18 01 02.3 +57 55 43   0.2206  1.0713    98.4    69.9    21.6
2024 07 08    18 02 31.7 +57 37 13   0.2149  1.0704    98.7    69.9    21.5
...
2024 07 14    18 13 17.9 +55 03 37   0.1799  1.0666   101.3    69.1    21.1
...
2024 07 22    18 34 06.7 +48 29 33   0.1326  1.0649   108.2    65.0    20.3
...
2024 08 06    19 45 02.1 +02 53 13   0.06556 1.0728   152.2    26.1    17.7

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-N83





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