[Iaude] MPEC H63: 2020 BF157 [a=95.67,e=0.86,i=34.2,H=12.5]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Mon Apr 22 13:38:43 EDT 2024


M.P.E.C. 2024-H63                                Issued 2024 April 22, 17:33 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 BF157                                   


Observations:
     K20BF7F KC2017 12 23.40321707 10 26.908+19 02 48.39         23.71GVEH063F51
     K20BF7F KC2019 01 03.57070807 50 20.779+23 58 24.09         23.41GVEH063F51
     K20BF7F KC2020 01 19.41429108 33 39.260+28 30 08.68         23.70GVEH063F51
     K20BF7F  C2020 01 21.37562808 33 12.084+28 33 52.46         23.26GVEH063F51
     K20BF7F  C2020 01 21.38976608 33 11.859+28 33 54.48         22.86GVEH063F51
     K20BF7F  C2020 01 21.41800308 33 11.484+28 33 57.34         23.68GVEH063F51
     K20BF7F  C2020 01 22.39221108 32 57.930+28 35 47.22         23.15GVEH063F51
     K20BF7F  C2020 01 22.40362308 32 57.739+28 35 48.91         23.00GVEH063F51
     K20BF7F* C2020 01 24.33755 08 32 30.691+28 39 24.40         23.3 rVEH063T09
     K20BF7F  C2020 01 24.56268 08 32 27.465+28 39 49.22         23.2 rVEH063T09
     K20BF7F KC2020 01 27.51687508 31 45.979+28 45 11.59         23.24GVEH063F52
     K20BF7F 4C2020 02 25.32685408 25 33.133+29 28 06.15         23.5 GVEH063T12
     K20BF7F 4C2020 02 25.33875108 25 33.012+29 28 06.95         23.6 GVEH063T12
     K20BF7F 4C2020 02 25.35046708 25 32.878+29 28 07.77         23.6 GVEH063T12
     K20BF7F 4C2020 02 25.42487108 25 32.042+29 28 12.76         23.4 GVEH063T12
     K20BF7F 4C2020 02 25.43655908 25 31.913+29 28 13.59         23.3 GVEH063T12
     K20BF7F 4C2020 02 25.44819508 25 31.782+29 28 14.32         23.3 GVEH063T12
     K20BF7F 4C2020 03 24.36362008 22 12.269+29 49 53.80         23.6 GVEH063T12
     K20BF7F 4C2021 03 18.10579 09 11 39.498+32 58 58.56         23.7 rVEH063304
     K20BF7F 4C2021 04 12.03850 09 09 48.662+33 02 06.08         23.9 rVEH063304
     K20BF7F 0C2022 01 09.58116610 15 33.168+32 50 23.54         24.32GVEH063T12
     K20BF7F 0C2022 01 09.61244210 15 32.926+32 50 28.32         24.33GVEH063T12
     K20BF7F 0C2022 04 03.37891609 59 54.783+35 00 54.62         24.19GVEH063T12
     K20BF7F 4C2024 03 06.23591 11 39 26.721+34 45 59.33         23.6 rVEH063G37
     K20BF7F 4C2024 03 06.26059 11 39 26.435+34 46 01.56         23.7 rVEH063G37
     K20BF7F 0C2024 04 17.43400611 31 30.530+35 16 36.24         24.29GVEH063T12

Observer details:
304 Las Campanas Observatory.  Observer S. S. Sheppard.  6.5-m Magellan-Baade
    telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
G37 Lowell Discovery Telescope.  Observers C. Trujillo, K. Farrell, A. Allen.
    4-m Lowell Discovery Telescope + CCD.
T09 Subaru Telescope, Maunakea.  Observers S. S. Sheppard, D. J. Tholen.
    Measurer S. S. Sheppard.  8.2-m Subaru reflector + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m reflector + CCD, 2.24-m f/10.1 reflector + 2112 x 2112 pixels
    STA1600 10k CCD.

Orbital elements:
2020 BF157                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M   1.60730              (2000.0)            P               Q                  
n   0.00105331     Peri.   15.85924     -0.54304555     -0.65313664             
a  95.6676948      Node   110.11400     +0.69632295     -0.70151679             
e   0.8641496      Incl.   34.19574     +0.46929297     +0.28510825             
P 936              H   12.55          G   0.15           U   3                  
Residuals in seconds of arc
171223 F51  0.0   0.1+    200124 T09  0.0   0.1-    210318 304  0.1+  0.1+
190103 F51  0.0   0.2-    200127 F52  0.2+  0.0     210412 304  0.1-  0.2+
200119 F51  0.2-  0.1-    200225 T12  0.1-  0.1+    220109 T12  0.1+  0.0
200121 F51  0.1-  0.1-    200225 T12  0.1+  0.0     220109 T12  0.1+  0.0
200121 F51  0.4-  0.3+    200225 T12  0.1+  0.0     220403 T12  0.0   0.1+
200121 F51  0.0   0.1-    200225 T12  0.1-  0.0     240306 G37  0.2-  0.1+
200122 F51  0.3+  0.2-    200225 T12  0.1-  0.0     240306 G37  0.1+  0.2-
200122 F51  0.1-  0.2+    200225 T12  0.1-  0.0     240417 T12  0.0   0.0
200124 T09  0.0   0.1-    200324 T12  0.0   0.2-

Ephemeris:
2020 BF157               a,e,i = 95.67, 0.86, 34                 q = 12.9965
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 03 23    11 36 01.0 +35 07 50  13.7913 14.6000   143.0     2.4    24.3
...
2024 04 07    11 33 10.4 +35 16 40  13.9308 14.6294   132.8     2.9    24.4
...
2024 04 15    11 31 52.0 +35 17 04  14.0247 14.6452   126.6     3.2    24.4
...
2024 04 21    11 31 01.3 +35 15 26  14.1027 14.6570   121.8     3.3    24.5
2024 04 22    11 30 53.6 +35 15 01  14.1162 14.6590   121.0     3.4    24.5
2024 04 23    11 30 46.1 +35 14 32  14.1300 14.6610   120.2     3.4    24.5
...
2024 04 29    11 30 05.9 +35 10 49  14.2152 14.6729   115.2     3.6    24.5
...
2024 05 07    11 29 26.2 +35 03 32  14.3358 14.6888   108.6     3.7    24.5
...
2024 05 22    11 28 58.4 +34 43 31  14.5764 14.7188    96.1     3.9    24.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-H63





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