[Iaude] MPEC Q27: 2020 PS4 [a=2.10,e=0.78,i=6.4,H=21.7,PHA]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-Q27                               Issued 2020 August 16, 23:52 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 PS4                                    


Observations:
     K20P04S* C2020 08 13.37017521 54 00.978-27 53 44.22         22.02wUEQ027F51
     K20P04S  C2020 08 13.38048821 53 59.119-27 53 58.03         21.99wUEQ027F51
     K20P04S  C2020 08 13.39079121 53 57.268-27 54 11.91         22.15wUEQ027F51
     K20P04S KC2020 08 14.55896621 50 28.40 -28 20 02.0          22.2 GVEQ027474
     K20P04S KC2020 08 14.56600421 50 27.11 -28 20 10.7          21.8 GVEQ027474
     K20P04S KC2020 08 14.57269021 50 25.69 -28 20 20.3          21.2 GVEQ027474
     K20P04S KC2020 08 15.46208321 47 38.80 -28 40 34.3          21.4 GVEQ027474
     K20P04S KC2020 08 15.46796221 47 37.68 -28 40 41.9          21.8 GVEQ027474
     K20P04S KC2020 08 15.47383821 47 36.51 -28 40 50.5          21.9 GVEQ027474
     K20P04S KC2020 08 16.57481821 43 57.34 -29 06 17.9          21.2 GVEQ027474
     K20P04S KC2020 08 16.57953621 43 56.39 -29 06 25.0          21.7 GVEQ027474
     K20P04S KC2020 08 16.58425521 43 55.36 -29 06 31.6          21.4 GVEQ027474

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.
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 PS4                                            PHA, Earth MOID = 0.0018 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 307.78869              (2000.0)            P               Q
n   0.32406628     Peri.   76.51351     +0.05250469     -0.99840995
a   2.0991662      Node    10.54118     +0.86736311     +0.03541335
e   0.7775597      Incl.    6.43843     +0.49489847     +0.04385741
P   3.04           H   21.7           G   0.15           U   9
Residuals in seconds of arc
200813 F51  0.1+  0.0     200814 474  0.8+  0.4+    200815 474  0.2+  0.0
200813 F51  0.0   0.0     200814 474  1.2-  0.2-    200816 474  0.2-  0.4+
200813 F51  0.1-  0.0     200815 474  0.4-  0.1-    200816 474  0.3+  0.2-
200814 474  0.2+  0.4-    200815 474  0.2+  0.4+    200816 474  0.2-  0.3-

Ephemeris:
2020 PS4                 a,e,i = 2.10, 0.78, 6                   q = 0.4669
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 17    22 31 39.2 -20 56 44   0.9360  1.8433   141.5    20.1    23.9
...
2020 08 01    22 19 33.2 -23 58 30   0.6995  1.6820   157.3    13.5    22.8
...
2020 08 09    22 05 11.7 -26 21 29   0.5910  1.5912   164.5     9.8    22.2
...
2020 08 15    21 49 06.6 -28 30 05   0.5190  1.5207   165.4     9.7    21.8
2020 08 16    21 45 53.4 -28 53 01   0.5079  1.5088   164.8    10.1    21.8
2020 08 17    21 42 30.1 -29 16 18   0.4970  1.4967   164.1    10.7    21.7
...
2020 08 23    21 18 16.8 -31 40 15   0.4373  1.4235   156.7    16.3    21.5
...
2020 08 31    20 34 15.7 -34 40 54   0.3733  1.3224   141.6    28.3    21.4
...
2020 09 15    18 37 02.7 -36 19 37   0.3018  1.1219   104.9    60.0    21.5

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Q27