[Iaude] MPEC Q21: 2020 PB4 [a=2.15,e=0.44,i=5.3,H=24.1]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-Q21                               Issued 2020 August 16, 16:43 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 PB4                                    


Observations:
     K20P04B* C2020 08 14.31612220 55 37.260-31 43 11.58         22.16wUEQ021F51
     K20P04B  C2020 08 14.32670020 55 37.818-31 42 55.44         22.40wUEQ021F51
     K20P04B  C2020 08 14.33728920 55 38.380-31 42 39.23         22.11wUEQ021F51
     K20P04B ^C2020 08 15.39952920 56 50.799-31 14 24.25         21.72GVEQ021568
     K20P04B ^C2020 08 15.40070720 56 50.857-31 14 22.41         21.92GVEQ021568
     K20P04B ^C2020 08 15.40424420 56 51.042-31 14 16.64         21.93GVEQ021568
     K20P04B KC2020 08 15.41152020 56 52.70 -31 13 23.5          21.9 GVEQ021474
     K20P04B KC2020 08 15.41855820 56 53.10 -31 13 12.3          21.9 GVEQ021474
     K20P04B KC2020 08 15.42559620 56 53.54 -31 13 01.2          21.9 GVEQ021474
     K20P04B KC2020 08 16.51694020 58 09.67 -30 43 00.7          22.0 GVEQ021474
     K20P04B KC2020 08 16.52433020 58 10.09 -30 42 47.7          21.8 GVEQ021474

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
    Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, T. Burdullis.  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.

Orbital elements:
2020 PB4                                                 Earth MOID = 0.2068 AU
Epoch 2020 Aug. 15.0 TT = JDT 2459076.5                 Bell                    
M 355.29345              (2000.0)            P               Q                  
n   0.31206335     Peri.  345.67031     +0.89027461     +0.45496299             
a   2.1526539      Node   347.20790     -0.40820445     +0.77721185             
e   0.4351558      Incl.    5.30957     -0.20194118     +0.43468428             
P   3.16           H   24.16          G   0.15           U   9                  
Residuals in seconds of arc
200814 F51  0.0+  0.2-    200815 568  0.0-  0.0-    200815 474  0.2+  0.1+
200814 F51  0.0-  0.0+    200815 568  0.0-  0.0+    200816 474  0.3+  0.4-
200814 F51  0.1+  0.2+    200815 474  0.1-  0.0+    200816 474  0.2+  0.1+
200815 568  0.0+  0.0+    200815 474  0.2-  0.1+

Ephemeris:
2020 PB4                 a,e,i = 2.15, 0.44, 5                   q = 1.2159
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 17    20 29 52.5 -38 18 25   0.2925  1.2958   160.5    15.2    22.9
...
2020 08 01    20 42 15.3 -36 13 06   0.2468  1.2518   161.8    14.7    22.4
...
2020 08 09    20 49 51.0 -33 49 38   0.2314  1.2350   161.1    15.4    22.3
...
2020 08 15    20 56 22.8 -31 24 40   0.2239  1.2258   160.1    16.3    22.2
2020 08 16    20 57 33.0 -30 57 31   0.2230  1.2245   159.9    16.5    22.2
2020 08 17    20 58 44.7 -30 29 35   0.2222  1.2233   159.7    16.7    22.2
...
2020 08 23    21 06 28.7 -27 26 29   0.2196  1.2181   158.4    17.8    22.2
...
2020 08 31    21 18 19.2 -22 50 52   0.2220  1.2159   156.2    19.5    22.3
...
2020 09 15    21 44 02.5 -13 49 06   0.2457  1.2269   151.3    23.2    22.7

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Q21