[Iaude] MPEC P70: 2020 PY4 [a=2.53,e=0.81,i=8.6,H=21.30]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Mon Aug 5 23:32:20 EDT 2024


M.P.E.C. 2024-P70                                Issued 2024 August 6, 03:31 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 PY4                                    


                           Revision to MPEC 2020-Q34                            

Additional Observations:
     K20P04Y KB2024 08 05.11089 22 54 34.210-04 11 10.57         18.7 GXEP070L87
     K20P04Y KB2024 08 05.11699 22 54 31.781-04 11 39.19         19.5 GXEP070L87
     K20P04Y KB2024 08 05.12311 22 54 29.311-04 12 08.03         19.7 GXEP070L87
     K20P04Y KB2024 08 05.94967322 49 16.52 -05 11 34.0          19.2 GXEP070I93
     K20P04Y KB2024 08 05.95243222 49 15.48 -05 11 45.4          20.0 GXEP070I93
     K20P04Y KB2024 08 05.95504622 49 14.50 -05 11 56.7          20.2 GXEP070I93
     K20P04Y KB2024 08 05.96106 22 49 11.97 -05 12 24.7                XEP070K35
     K20P04Y KB2024 08 05.96452 22 49 10.69 -05 12 38.1                XEP070K35
     K20P04Y KB2024 08 05.96777 22 49 09.44 -05 12 50.4                XEP070K35
     K20P04Y KB2024 08 05.97383 22 49 07.13 -05 13 17.0                XEP070K35
     K20P04Y KC2024 08 05.97893222 49 05.08 -05 13 36.4          19.8 GVEP070L01
     K20P04Y KC2024 08 05.98152422 49 04.11 -05 13 47.4          20.4 GVEP070L01
     K20P04Y KC2024 08 05.98436422 49 03.00 -05 13 59.1          20.1 GVEP070L01
     K20P04Y KB2024 08 06.09989622 48 19.416-05 21 54.58         19.8 VZEP070C95
     K20P04Y KB2024 08 06.10633722 48 16.973-05 22 20.71         19.7 VZEP070C95

Observer details:
C95 SATINO Remote Observatory, Haute Provence.  Observers D. Husar, B.
    Haeusler, C. Gerhard.  Measurer C. Gerhard.  0.30-m f/5.8 reflector + CMO.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CMO.
K35 Huenfelden.  Observer P. Remmel.  0.36-m f/1.9 reflector + CMO.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, I. Forkapa, L.
    Ivanovic, E. Matika, I. Novotny, I. Paleka, E. Pettarin, M. Spoler.
    Measurer M. Spoler.  1.0-m f/2.9 reflector + CCD.
L87 Moonbase South Observatory, Hakos.  Observer G. Duszanowicz.  0.28-m f/1.9
    reflector + CMO.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240805 L87 9.37- 0.10-    240806 C95 9.92- 0.62-    MPO555972   -10.5 days

Orbital elements:
2020 PY4                                            PHA, Earth MOID = 0.0391 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5                 MPC                     
M  32.78879              (2000.0)            P               Q                  
n   0.24477721     Peri.   65.69940     -0.87717709     +0.47133594             
a   2.5309801      Node   142.23735     -0.47665585     -0.83170355             
e   0.8067351      Incl.    8.60875     -0.05796165     -0.29344786             
P   4.03           H   21.30          G   0.15           U   1                  
Residuals in seconds of arc
200811 F51  0.0   0.1+    200817 J04  0.0   0.0     240805 K35  0.6+  0.8-
200811 F51  0.3-  0.1+    200826 V06  0.3-  0.0     240805 K35  1.1+  0.2+
200811 F51 (0.5-  0.1-)   200826 V06  0.6-  0.1-    240805 K35  0.8+  1.4+
200814 F52  0.0   0.0     200826 V06  0.1-  0.0     240805 K35  0.6+  0.1-
200814 F52  0.1+  0.0     240805 L87  1.2-  1.5+    240805 L01  0.0   0.1-
200814 F52  0.4+  0.1+    240805 L87  0.7-  0.3-    240805 L01  0.2+  0.3-
200816 568  0.1+  0.0     240805 L87 (0.7-  2.2-)   240805 L01  0.2-  0.3-
200816 568  0.0   0.0     240805 I93  0.0   0.3+    240806 C95  0.0   0.3-
200816 568  0.0   0.1-    240805 I93  0.1+  0.4+    240806 C95  0.2-  0.1-
200817 J04  0.0   0.0     240805 I93  0.3+  0.0

Ephemeris:
2020 PY4                 a,e,i = 2.53, 0.81, 9                   q = 0.4891
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 07 07    05 01 04.8 +37 31 23   0.2411  0.8183    30.5   140.8    24.7
...
2024 07 22    01 19 51.6 +21 35 35   0.1733  1.0386    92.7    77.7    20.3
...
2024 07 30    23 43 11.5 +05 03 17   0.2037  1.1533   128.6    43.5    19.8
...
2024 08 05    22 55 19.1 -04 03 10   0.2515  1.2371   149.1    24.9    19.9
2024 08 06    22 48 57.0 -05 14 34   0.2611  1.2508   152.0    22.4    19.9
2024 08 07    22 42 58.0 -06 21 01   0.2709  1.2646   154.8    20.0    20.0
...
2024 08 13    22 13 53.9 -11 31 44   0.3371  1.3457   169.1     8.1    20.2
...
2024 08 21    21 48 29.5 -15 41 37   0.4402  1.4508   175.3     3.3    20.6
...
2024 09 05    21 24 46.5 -19 14 06   0.6694  1.6385   154.6    15.3    22.3

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-P70





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