[Iaude] MPEC J188: 2017 BL231 [a=68.99,e=0.46,i=29.6,H=7.39]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-J188                                  Issued 2024 May 8, 18:51 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 BL231                                   


Additional Observations:
     K17BN1L 5C2006 01 05.47553208 45 52.99 -02 50 44.1                WEJ188T14
     K17BN1L 5C2006 01 05.53653008 45 52.75 -02 50 43.7                WEJ188T14
     K17BN1L 5C2008 01 05.43692608 56 25.99 -02 33 29.3                WEJ188T14
     K17BN1L 5C2008 01 05.47082408 56 25.87 -02 33 29.1                WEJ188T14
     K17BN1L 1C2016 04 04.24407809 36 06.15 -00 33 03.2                WEJ188T09
     K17BN1L 1C2016 04 04.27658209 36 06.08 -00 33 01.8                WEJ188T09

Observer details:
T09 Subaru Telescope, Maunakea.  Observer .  Measurer S. Deen.  8.3-m Subaru
    Telescope + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observer .  Measurer S. Deen.
    3.58-m Canada-France-Hawaii Telescope + CCD.

Orbital elements:
2017 BL231                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 346.64174              (2000.0)            P               Q                  
n   0.00171990     Peri.   22.78513     -0.95538295     +0.28948912             
a  68.9922852      Node   173.18799     -0.28250324     -0.95353664             
e   0.4628528      Incl.   29.63308     +0.08622841     +0.08345020             
P 573              H    7.39          G   0.15           U   5                  
Residuals in seconds of arc
060105 T14  0.0   0.0     161225 T09  0.0   0.0     170128 T09  0.2+  0.1-
060105 T14  0.0   0.0     170126 T09  0.1-  0.2+    170128 T09  0.0   0.0
080105 T14  0.1-  0.1+    170126 T09  0.1-  0.1+    170304 T09  0.1-  0.3-
080105 T14  0.1+  0.0     170126 T09  0.1-  0.2-    170304 T09  0.1+  0.2+
160404 T09  0.0   0.4-    170126 T09  0.1+  0.0     170304 T09  0.0   0.1-
160404 T09  0.1+  0.2-    170126 T09  0.2+  0.1+    170306 T09  0.1-  0.2+
161225 T09  0.1-  0.0     170126 T09  0.1-  0.0     170306 T09  0.1-  0.0
161225 T09  0.2+  0.0     170128 T09  0.0   0.1+    170306 T09  0.1-  0.1-
161225 T09  0.1+  0.0     170128 T09  0.0   0.2+    170306 T09  0.1+  0.2+

Ephemeris:
2017 BL231               a,e,i = 68.99, 0.46, 30                 q = 37.0590
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 08    10 26 48.3 +01 01 45  39.1097 39.8716   139.1     0.9    23.5
...
2024 04 23    10 26 10.9 +01 10 04  39.2837 39.8614   124.5     1.2    23.5
...
2024 05 01    10 25 58.4 +01 13 58  39.3927 39.8559   116.7     1.3    23.6
...
2024 05 07    10 25 52.6 +01 16 35  39.4802 39.8519   110.9     1.4    23.6
2024 05 08    10 25 52.0 +01 17 00  39.4951 39.8512   110.0     1.4    23.6
2024 05 09    10 25 51.4 +01 17 24  39.5102 39.8505   109.0     1.4    23.6
...
2024 05 15    10 25 50.0 +01 19 39  39.6025 39.8464   103.3     1.4    23.6
...
2024 05 23    10 25 53.3 +01 22 10  39.7289 39.8410    95.6     1.4    23.6
...
2024 06 07    10 26 15.3 +01 25 18  39.9692 39.8309    81.4     1.4    23.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-J188