[Iaude] MPEC J101: 2017 BK230 [a=45.91,e=0.31,i=13.4,H=9.60]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Mon May 6 15:47:44 EDT 2024


M.P.E.C. 2024-J101                                  Issued 2024 May 6, 19:45 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

                                   2017 BK230                                   


Additional Observations:
     K17BN0K 1C2016 12 25.51568709 58 25.17 +01 31 24.3                WEJ101T09
     K17BN0K 1C2016 12 25.54357909 58 25.12 +01 31 24.3                WEJ101T09
     K17BN0K 1C2016 12 25.59036109 58 24.99 +01 31 24.5                WEJ101T09
     K17BN0K 1C2016 12 25.61263809 58 24.92 +01 31 24.6                WEJ101T09
     K17BN0K 1C2017 01 02.59457309 58 02.78 +01 31 57.8                WEJ101T09
     K17BN0K 1C2019 02 05.42269310 07 29.48 +01 05 10.7                WEJ101T09
     K17BN0K 1C2019 05 09.26369810 02 18.19 +01 49 26.1                WEJ101T09
     K17BN0K 1C2019 05 09.33891910 02 18.18 +01 49 27.5                WEJ101T09
     K17BN0K 1C2019 05 09.38598910 02 18.16 +01 49 28.3                WEJ101T09

Observer details:
T09 Subaru Telescope, Maunakea.  Observer .  Measurer S. Deen.  8.3-m Subaru
    Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
161225 T09 0.00- 0.00-    190509 T09 0.04- 0.01-    MPO810794  -32466 days

Orbital elements:
2017 BK230                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 317.88426              (2000.0)            P               Q                  
n   0.00316819     Peri.   36.00842     -0.59209374     +0.80266497             
a  45.9122308      Node   198.03773     -0.78293683     -0.59405847             
e   0.3122862      Incl.   13.40606     -0.19087936     -0.05313645             
P 311              H    9.60          G   0.15           U   7                  
Residuals in seconds of arc
161225 T09  0.1-  0.0     170123 T09  0.0   0.0     170130 T09  0.0   0.2+
161225 T09  0.2+  0.1-    170123 T09  0.2+  0.0     170130 T09  0.5-  0.3-
161225 T09  0.0   0.0     170123 T09  0.1-  0.1+    170130 T09  0.1+  0.1-
161225 T09  0.2-  0.1+    170123 T09  0.1-  0.1+    170130 T09  0.3+  0.1-
170102 T09  0.0   0.0     170123 T09  0.2-  0.1-    190205 T09  0.0   0.0
170121 T09  0.1+  0.1+    170123 T09  0.1+  0.0     190509 T09  0.0   0.0
170121 T09  0.0   0.1-    170123 T09  0.1+  0.3+    190509 T09  0.1+  0.0
170121 T09  0.0   0.0     170123 T09  0.0   0.2+    190509 T09  0.1-  0.0
170123 T09  0.0   0.1+    170130 T09  0.0   0.0

Ephemeris:
2017 BK230               a,e,i = 45.91, 0.31, 13                 q = 31.5745
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 06    10 33 39.2 +00 03 31  37.3270 38.1295   142.9     0.9    25.5
...
2024 04 21    10 32 54.2 +00 11 21  37.4869 38.1175   128.3     1.2    25.5
...
2024 04 29    10 32 37.5 +00 15 01  37.5898 38.1111   120.5     1.3    25.6
...
2024 05 05    10 32 28.8 +00 17 28  37.6734 38.1063   114.7     1.4    25.6
2024 05 06    10 32 27.6 +00 17 51  37.6878 38.1055   113.8     1.4    25.6
2024 05 07    10 32 26.6 +00 18 14  37.7023 38.1047   112.8     1.4    25.6
...
2024 05 13    10 32 22.3 +00 20 19  37.7915 38.0999   107.0     1.5    25.6
...
2024 05 21    10 32 22.0 +00 22 36  37.9151 38.0935    99.4     1.5    25.6
...
2024 06 05    10 32 37.8 +00 25 17  38.1529 38.0814    85.2     1.5    25.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-J101





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