[Iaude] MPEC A36: 2020 PF5 [a=1.18,e=0.47,i=4.1,H=23.18]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Jan 4 09:12:15 EST 2024


M.P.E.C. 2024-A36                               Issued 2024 January 4, 14:10 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

                                    2020 PF5                                    


                           Revision to MPEC 2020-Q43                            

Additional Observations:
     K20P05F  C2023 12 17.14398 03 37 07.49 +39 10 09.1          20.9 GVEA036I52
     K20P05F  C2023 12 17.16335 03 36 58.77 +39 09 57.4                VEA036I52
     K20P05F KC2024 01 03.14493001 23 01.244+28 56 29.62         21.19GVEA036I52
     K20P05F KC2024 01 03.14880101 22 59.387+28 56 15.00         21.82GVEA036I52
     K20P05F KC2024 01 03.15267001 22 57.529+28 56 00.96         21.41GVEA036I52

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard, R. A.
    Kowalski.  Measurers B. Gray, D. Rankin, F. C. Shelly, E. C. Beshore, D.
    Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J.
    K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, K. W.
    Wierzchos.  1.0-m f/2.0 prime focus + CCD, 1.0-m prime focus + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231217 I52 0.72- 0.39-    240103 I52 0.16- 0.40-    MPO782714   -0.17 days

Orbital elements:
2020 PF5                                                 Earth MOID = 0.0230 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 223.11989              (2000.0)            P               Q                  
n   0.77320917     Peri.  238.95229     -0.94414895     +0.32636548             
a   1.1756320      Node   320.04563     -0.27302380     -0.85206741             
e   0.4717097      Incl.    4.06108     -0.18450138     -0.40922697             
P   1.27           H   23.18          G   0.15           U   2                  
Residuals in seconds of arc
200813 F51  0.0   0.1+    200817 F51  0.1-  0.0     200818 F51  0.1-  0.0
200813 F51  0.1+  0.0     200817 F51  0.0   0.0     200826 V06  0.2-  0.1-
200813 F51  0.0   0.1+    200817 F51  0.1-  0.0     200826 V06  0.1+  0.1+
200813 F51  0.1-  0.0     200817 F51  0.0   0.0     200826 V06  0.1+  0.4+
200815 568  0.0   0.0     200817 F51  0.1+  0.0     200826 V06  0.0   0.1+
200815 568  0.0   0.0     200817 F51  0.2-  0.1-    231217 I52  0.4+  0.3-
200815 568  0.0   0.0     200817 F51  0.2+  0.0     231217 I52  0.4-  0.1-
200816 033 (0.9-  0.7-)   200818 F52  0.4-  0.2+    240103 I52  0.3-  0.1+
200816 033  0.1-  0.5-    200818 F52 (1.1+  0.2+)   240103 I52  0.1-  0.2-
200817 711  0.4-  0.7-    200818 F52  0.1-  0.0     240103 I52  0.1+  0.1+
200817 711  0.1+  0.7+    200818 F51  0.1+  0.0
200817 711  0.3-  0.8+    200818 F51  0.0   0.1+

Ephemeris:
2020 PF5                 a,e,i = 1.18, 0.47, 4                   q = 0.6211
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 05    04 47 38.4 +39 05 24   0.2900  1.2660   163.1    13.1    21.8
...
2023 12 20    03 15 56.3 +38 27 33   0.2062  1.1574   144.2    29.8    21.4
...
2023 12 28    02 12 03.0 +34 19 14   0.1798  1.0952   124.5    47.8    21.4
...
2024 01 03    01 24 10.4 +29 05 24   0.1679  1.0468   107.8    63.4    21.7
2024 01 04    01 16 27.6 +28 03 49   0.1666  1.0386   104.9    66.2    21.7
2024 01 05    01 08 50.8 +26 59 59   0.1654  1.0304   102.0    69.0    21.8
...
2024 01 11    00 25 21.4 +19 58 21   0.1618  0.9805    84.2    86.3    22.2
...
2024 01 19    23 32 29.8 +09 37 03   0.1659  0.9128    60.2   110.8    23.3
...
2024 02 03    22 04 53.2 -08 37 14   0.2094  0.7878    17.2   158.4    29.7

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-A36





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