[Iaude] MPEC K62: 2017 BC230 [a=41.62,e=0.22,i=10.5,H=9.83]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Thu May 23 12:38:57 EDT 2024


M.P.E.C. 2024-K62                                  Issued 2024 May 23, 16:37 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 BC230                                   


Additional Observations:
     K17BN0C 1C2018 01 17.46121010 06 37.59 +01 20 39.1                WEK062T09
     K17BN0C 1C2018 01 17.54534510 06 37.24 +01 20 40.2                WEK062T09
     K17BN0C 1C2019 03 03.31700210 09 07.55 +00 53 32.8                WEK062T09

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, reference and Delta-T
180117 T09  0.6+  0.8+    190303 T09  0.4+  2.6+    MPO810793   +15.0 days

Orbital elements:
2017 BC230                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 319.26915              (2000.0)            P               Q                  
n   0.00367118     Peri.  316.52219     -0.69843178     +0.69225763             
a  41.6164835      Node   268.25298     -0.59680495     -0.70339789             
e   0.2243913      Incl.   10.46690     -0.39498975     -0.16127859             
P 268              H    9.83          G   0.15           U   6                  
Residuals in seconds of arc
161128 T09  0.3+  0.2-    170121 T09  0.2-  0.2-    170130 T09  0.0   0.1+
161128 T09  0.2-  0.1-    170121 T09  0.2-  0.0     170130 T09  0.1-  0.2-
161128 T09  0.2-  0.1-    170121 T09  0.2-  0.1+    170130 T09  0.1+  0.2-
161128 T09  0.3+  0.0     170123 T09  0.1+  0.1+    170130 T09  0.2-  0.2-
161128 T09  0.2-  0.1-    170123 T09  0.2+  0.1+    170130 T09  0.5-  0.2+
161128 T09  0.1+  0.0     170123 T09  0.0   0.1-    170202 T09  0.1-  0.1+
161129 T09  0.2-  0.5+    170123 T09  0.0   0.0     170202 T09  0.0   0.1+
161129 T09  0.1+  0.3+    170123 T09  0.2+  0.1+    170202 T09  0.3+  0.1+
161129 T09  0.1+  0.0     170123 T09  0.1+  0.1-    170202 T09  0.0   0.0
161129 T09  0.0   0.2-    170123 T09  0.5+  0.0     170223 T09  0.1+  0.1+
161225 T09  0.4+  0.8+    170123 T09  0.0   0.0     170223 T09  0.2-  0.2-
161225 T09  0.2+  0.1+    170123 T09  0.1-  0.1-    170223 T09  0.2-  0.0
161225 T09  0.0   0.3-    170123 T09  0.1+  0.0     170223 T09  0.2-  0.1+
161225 T09  0.2-  0.1+    170123 T09  0.2+  0.0     170223 T09  0.2+  0.0
161225 T09  0.0   0.6-    170123 T09  0.0   0.1-    170304 T09  0.0   0.0
170102 T09  0.1+  0.1+    170123 T09  0.5+  0.1+    170304 T09  0.1+  0.1-
170102 T09  0.2-  0.2+    170123 T09  0.1+  0.2+    170304 T09  0.1+  0.1-
170102 T09  0.0   0.1-    170123 T09  0.3+  0.1-    170304 T09  0.1-  0.4-
170102 T09  0.0   0.1-    170130 T09  0.0   0.2+    180117 T09  0.1-  0.0
170121 T09  0.1-  0.1+    170130 T09  0.2-  0.2+    180117 T09  0.1+  0.1+
170121 T09  0.2+  0.0     170130 T09  0.1+  0.1-    190303 T09  0.0   0.0

Ephemeris:
2017 BC230               a,e,i = 41.62, 0.22, 10                 q = 32.2781
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 23    10 37 28.9 -02 25 07  35.0569 35.6865   128.1     1.3    25.5
...
2024 05 08    10 37 01.0 -02 18 28  35.2601 35.6784   113.7     1.5    25.5
...
2024 05 16    10 36 55.2 -02 15 38  35.3802 35.6741   106.1     1.6    25.5
...
2024 05 22    10 36 55.2 -02 13 54  35.4738 35.6709   100.4     1.6    25.5
2024 05 23    10 36 55.6 -02 13 39  35.4896 35.6703    99.5     1.6    25.5
2024 05 24    10 36 56.0 -02 13 24  35.5054 35.6698    98.5     1.6    25.6
...
2024 05 30    10 37 00.9 -02 12 08  35.6012 35.6666    92.9     1.6    25.6
...
2024 06 07    10 37 13.1 -02 11 02  35.7297 35.6623    85.4     1.6    25.6
...
2024 06 22    10 37 53.0 -02 10 51  35.9649 35.6542    71.4     1.5    25.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K62





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