[Iaude] MPEC Q156: 2020 QD4 [a=1.15,e=0.27,i=5.1,H=24.8]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-Q156                              Issued 2020 August 22, 17:12 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

                                    2020 QD4                                    


Observations:
     K20Q04D* C2020 08 19.42249122 00 19.556-06 23 00.77         22.44wUEQ156F51
     K20Q04D  C2020 08 19.43442722 00 17.128-06 23 02.01         22.69wUEQ156F51
     K20Q04D  C2020 08 19.44636522 00 14.705-06 23 03.39         22.31wUEQ156F51
     K20Q04D  C2020 08 19.45830322 00 12.306-06 23 04.60         22.73wUEQ156F51
     K20Q04D KC2020 08 20.24092521 57 48.13 -06 24 38.8          22.4 VuEQ156H21
     K20Q04D KC2020 08 20.24923921 57 46.54 -06 24 39.1          22.7 VuEQ156H21
     K20Q04D KC2020 08 22.19416021 52 04.76 -06 28 19.2          22.7 VuEQ156H21
     K20Q04D KC2020 08 22.20044521 52 03.63 -06 28 20.1          23.0 VuEQ156H21
     K20Q04D KC2020 08 22.20652421 52 02.51 -06 28 20.9          22.9 VuEQ156H21

Observer details:
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:
2020 QD4                                                 Earth MOID = 0.0056 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M  27.87606              (2000.0)            P               Q
n   0.80376291     Peri.  249.55201     -0.90021413     +0.43103427
a   1.1456468      Node   315.92013     -0.35900768     -0.81503331
e   0.2711729      Incl.    5.09985     -0.24643054     -0.38720816
P   1.23           H   24.8           G   0.15           U   9
Residuals in seconds of arc
200819 F51  0.1+  0.0     200819 F51  0.1+  0.0     200822 H21  0.0   0.1+
200819 F51  0.1-  0.1+    200820 H21  0.2-  0.3-    200822 H21  0.1+  0.0
200819 F51  0.1-  0.1-    200820 H21  0.2+  0.3+    200822 H21  0.1-  0.1-

Ephemeris:
2020 QD4                 a,e,i = 1.15, 0.27, 5                   q = 0.8350
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 23    23 47 15.0 -06 54 25   0.1697  1.1238   125.8    47.1    23.0
...
2020 08 07    22 45 37.7 -06 12 47   0.1904  1.1884   154.1    21.8    22.6
...
2020 08 15    22 15 04.4 -06 16 05   0.2118  1.2209   168.2     9.8    22.5
...
2020 08 21    21 55 31.7 -06 25 36   0.2335  1.2442   174.1     4.8    22.5
2020 08 22    21 52 37.5 -06 27 30   0.2376  1.2480   173.9     5.0    22.6
2020 08 23    21 49 49.7 -06 29 28   0.2419  1.2518   173.2     5.5    22.7
...
2020 08 29    21 35 21.4 -06 41 40   0.2701  1.2737   166.1    11.0    23.2
...
2020 09 06    21 22 01.2 -06 56 31   0.3145  1.3013   155.8    18.5    23.8
...
2020 09 21    21 12 28.7 -07 10 56   0.4160  1.3473   139.4    29.0    24.8

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Q156