[Iaude] MPEC H70: 2020 BH157 [a=54.69,e=0.32,i=17.6,H=6.6]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-H70                                Issued 2024 April 24, 18:19 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 BH157                                   


Observations:
     K20BF7H* C2020 01 23.36455 09 01 16.194+30 52 50.95         23.8 rVEH070T09
     K20BF7H  C2020 01 23.57248 09 01 15.297+30 52 54.27         23.7 rVEH070T09
     K20BF7H 4C2020 02 25.38444808 58 58.225+30 59 23.04         24.1 GVEH070T12
     K20BF7H 4C2020 02 25.47266508 58 57.879+30 59 23.59         24.1 GVEH070T12
     K20BF7H 4C2021 03 18.08840 09 00 58.954+30 37 29.11         24.0 rVEH070304
     K20BF7H 4C2021 03 18.13372 09 00 58.821+30 37 29.27         24.2 rVEH070304
     K20BF7H 4C2021 04 12.03340 09 00 07.628+30 34 50.45         24.0 rVEH070304

Observer details:
304 Las Campanas Observatory.  Observer S. S. Sheppard.  6.5-m Magellan-Baade
    telescope + CCD.
T09 Subaru Telescope, Maunakea.  Observers D. J. Tholen, S. S. Sheppard, C.
    Trujillo.  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.

Orbital elements:
2020 BH157                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  82.34418              (2000.0)            P               Q                  
n   0.00243674     Peri.   16.82798     +0.97457109     -0.22301238             
a  54.6928298      Node   355.86757     +0.15429504     +0.73852838             
e   0.3166907      Incl.   17.63618     +0.16249379     +0.63627141             
P 404              H    6.61          G   0.15           U   8                  
Residuals in seconds of arc
200123 T09  0.0   0.2-    200225 T12  0.1+  0.3+    210412 304  0.1+  0.1-
200123 T09  0.1-  0.3-    210318 304  0.0   0.1-
200225 T12  0.0   0.3+    210318 304  0.0   0.1+

Ephemeris:
2020 BH157               a,e,i = 54.69, 0.32, 18                 q = 37.3721
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 03 25    09 10 02.9 +29 28 40  57.1700 57.7564   125.6     0.8    24.3
...
2024 04 09    09 09 32.4 +29 27 17  57.3972 57.7667   111.2     0.9    24.4
...
2024 04 17    09 09 22.6 +29 25 58  57.5293 57.7722   103.5     1.0    24.4
...
2024 04 23    09 09 18.3 +29 24 44  57.6313 57.7763    97.8     1.0    24.4
2024 04 24    09 09 17.9 +29 24 31  57.6484 57.7770    96.8     1.0    24.4
2024 04 25    09 09 17.5 +29 24 17  57.6657 57.7777    95.9     1.0    24.4
...
2024 05 01    09 09 16.8 +29 22 47  57.7693 57.7818    90.2     1.0    24.4
...
2024 05 09    09 09 20.1 +29 20 31  57.9076 57.7873    82.7     1.0    24.4
...
2024 05 24    09 09 39.2 +29 15 30  58.1585 57.7976    68.6     0.9    24.4

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-H70