[Iaude] MPEC Q31: 2020 PW4 [a=1.44,e=0.25,i=0.5,H=25.8]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Aug 16 20:11:26 EDT 2020


M.P.E.C. 2020-Q31                               Issued 2020 August 17, 00:10 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 PW4                                    


Observations:
     K20P04W  C2020 08 14.30888119 54 40.744-26 26 38.66         21.96GVEQ031F51
     K20P04W  C2020 08 14.31948319 54 43.123-26 26 36.54         21.44GVEQ031F51
     K20P04W  C2020 08 14.33005219 54 45.456-26 26 34.31         21.95GVEQ031F51
     K20P04W  C2020 08 14.34063819 54 47.787-26 26 32.36         20.89GVEQ031F51
     K20P04W* C2020 08 15.34010619 59 18.213-26 21 18.61         21.86wUEQ031F51
     K20P04W  C2020 08 15.35045019 59 20.553-26 21 15.50         21.56wUEQ031F51
     K20P04W  C2020 08 15.36079619 59 22.880-26 21 12.19         21.56wUEQ031F51
     K20P04W ^C2020 08 16.44698020 04 20.060-26 14 15.21         20.79GVEQ031568
     K20P04W ^C2020 08 16.44915720 04 20.554-26 14 14.01         21.24GVEQ031568
     K20P04W ^C2020 08 16.45010420 04 20.783-26 14 13.43         21.65GVEQ031568
     K20P04W KC2020 08 16.45042820 04 25.20 -26 12 26.1          21.4 GVEQ031474
     K20P04W KC2020 08 16.45336620 04 25.91 -26 12 25.5          21.6 GVEQ031474
     K20P04W KC2020 08 16.45630420 04 26.63 -26 12 23.6          21.8 GVEQ031474
     K20P04W KC2020 08 16.45924220 04 27.32 -26 12 22.8          21.4 GVEQ031474

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, H. Januszewski, T. Burdullis.
    Measurers R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope +
    CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau, J. Fairlamb, H.
    Flewelling, C.-C. Lin, E. Magnier.  1.8-m Ritchey-Chretien + CCD.

Orbital elements:
2020 PW4                                                 Earth MOID = 0.0717 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 311.75259              (2000.0)            P               Q
n   0.57029457     Peri.  236.26016     +0.85623462     +0.51649817
a   1.4401351      Node    92.64048     -0.47072811     +0.78773442
e   0.2483059      Incl.    0.54992     -0.21278469     +0.33571436
P   1.73           H   25.8           G   0.15           U   6
Residuals in seconds of arc
200814 F51  0.3-  0.0     200815 F51  0.0   0.0     200816 474  0.1+  0.2+
200814 F51  0.1+  0.1+    200815 F51  0.1-  0.0     200816 474  0.0   0.3-
200814 F51  0.1+  0.1+    200816 568  0.2+  0.2-    200816 474  0.1+  0.4+
200814 F51  0.1+  0.3-    200816 568  0.1-  0.2-    200816 474  0.2-  0.0
200815 F51  0.0   0.1+    200816 568  0.1-  0.1-

Ephemeris:
2020 PW4                 a,e,i = 1.44, 0.25, 1                   q = 1.0825
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 18    18 41 18.8 -25 09 46   0.1104  1.1227   163.7    14.8    22.1
...
2020 08 02    19 09 34.2 -26 25 26   0.08957 1.0969   155.4    22.7    21.8
...
2020 08 10    19 36 34.5 -26 37 22   0.08259 1.0882   153.5    24.5    21.7
...
2020 08 16    20 02 18.8 -26 15 59   0.07942 1.0843   153.4    24.7    21.6
2020 08 17    20 06 59.8 -26 09 05   0.07909 1.0838   153.5    24.7    21.6
2020 08 18    20 11 46.6 -26 01 07   0.07881 1.0834   153.6    24.6    21.6
...
2020 08 24    20 42 01.8 -24 49 50   0.07844 1.0824   154.6    23.6    21.6
...
2020 09 01    21 23 41.9 -22 14 36   0.08160 1.0846   156.7    21.6    21.6
...
2020 09 16    22 30 34.7 -15 46 14   0.09963 1.0992   159.3    18.8    22.0

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Q31




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