[Iaude] MPEC M35: 2002 BF25 [a=1.07,e=0.22,i=6.3,H=22.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Jun 22 12:34:16 EDT 2020


M.P.E.C. 2020-M35                                 Issued 2020 June 19, 18:17 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  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

                                   2002 BF25                                    


                           Revision to MPEC 2010-N10                            

     On June 17 and 18, 2020, T. Lister (K93) reported recovery of Near-Earth
Object 2002 BF25. D. Farnocchia (JPL) suggested the presence of Yarkovsky
non-gravitational forces affecting the orbit. MPC orbit integration detected 
the presence of Yarkovsky effect and derived the parameter
A2=162.0602e-15 +/- 6.3594e-05 au/d^2.

Additional Observations:
     K02B25F  C2020 06 17.00132519 32 09.71 -55 00 11.7          20.6 GVEM035K93
     K02B25F  C2020 06 17.00320019 32 09.59 -55 00 14.7          20.7 GVEM035K93
     K02B25F  C2020 06 17.00507219 32 09.48 -55 00 17.6          20.5 GVEM035K93
     K02B25F  C2020 06 17.00694019 32 09.34 -55 00 20.5          20.3 GVEM035K93
     K02B25F  C2020 06 17.00881319 32 09.23 -55 00 23.5          20.1 GVEM035K93
     K02B25F  C2020 06 17.01068419 32 09.12 -55 00 26.5          19.9 GVEM035K93
     K02B25F  C2020 06 18.90005819 31 09.91 -55 50 30.6          19.6 GVEM035K93
     K02B25F  C2020 06 18.90181019 31 09.78 -55 50 34.1          19.3 GVEM035K93
     K02B25F  C2020 06 18.90356719 31 09.66 -55 50 37.2          19.2 GVEM035K93
     K02B25F  C2020 06 18.90532119 31 09.53 -55 50 40.3          19.3 GVEM035K93
     K02B25F  C2020 06 18.90707919 31 09.40 -55 50 43.6          19.2 GVEM035K93

Observer details:
K93 Sutherland-LCO C.  Observers T. Lister, J. Chatelain, E. Gomez, S.
    Greenstreet.  Measurer T. Lister.  1.0-m f/8.0 Ritchey-Chretien + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
200617 K93  8.1-  2.4-    200618 K93  8.8-  2.5-    MPO264922    +406 days

Orbital elements:
2002 BF25                                                Earth MOID = 0.0186 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Spoto                   
M 253.25228              (2000.0)            P               Q                  
n   0.88643625     Peri.   78.04790     +0.90911377     -0.40702966             
a   1.0732586      Node   305.90744     +0.32682688     +0.82877968             
e   0.2218123      Incl.    6.27560     +0.25825633     +0.38399363             
P   1.11           H   22.42          G   0.15           U   2                  
Residuals in seconds of arc
020125 704  0.0+  0.1-    020207 644  0.2-  0.1-    100719 D21  0.8+  0.4-
020125 704  0.0+  0.7-    020209 413  0.3-  0.2-    100719 D21  0.5+  0.2-
020125 704  0.1-  0.5-    020209 413  0.2-  0.1-    120107 H21  0.3-  0.3+
020125 704  0.2-  0.6-    020212 413  0.1-  0.1-    120107 H21  0.2-  0.1+
020126 649  0.2-  0.8-    020212 413  0.2-  0.0+    120107 H21  0.1-  0.3-
020126 649  0.1+  0.0-    020212 413  0.3-  0.6-    120107 H21  0.1+  0.5-
020126 649  0.8+  1.1+    020213 711  0.6+  0.1+    120109 204  0.0-  0.1-
020126 704  0.2-  0.3-    020213 711  0.5+  0.7-    120109 204  0.6+  0.2+
020126 704  0.7-  0.4-    020213 711  0.2+  0.1-    120115 130  0.6+  0.5-
020126 704  0.3-  0.6-    020217 644  0.2+  0.2+    120115 130  0.1+  0.8+
020126 704  0.5-  0.1+    020217 644  0.2-  0.1-    120129 G96  0.1+  0.2+
020126 644  0.0-  0.3+    020217 644  0.2+  0.4-    120129 G96  0.2+  0.4+
020126 644  0.2-  0.4+    020219 413  0.2+  0.3-    120129 G96  0.0-  0.3+
020126 644  0.1+  0.4+    020219 413  0.3-  0.2-    120129 G96  0.4+  0.2+
020130 670  0.0-  1.6-    020219 413  0.6+  0.0+    120130 H21  0.1-  0.1-
020130 670  1.2-  0.9-    020305 413  0.0+  0.3-    120130 H21  0.1-  0.1+
020131 809  0.3+  0.8+    020305 413  0.0-  0.3-    120130 H21  0.2-  0.1-
020131 809  0.8+  0.2+    020311 696  0.4+  1.1+    120130 H01  0.0-  0.1-
020202 118  0.4+  0.2-    020311 696  0.4+  0.4-    120130 H01  0.1-  0.1-
020202 118  0.0+  0.7-    100703 D21  0.2-  1.2-    120130 H01  0.1-  0.0-
020202 118  1.2+  0.6-    100703 D21  0.1-  0.9-    120130 H01  0.0-  0.0+
020202 046  0.2-  0.2-    100703 D21  1.2-  0.3-    120131 G96  0.0+  0.1+
020202 046  0.6-  0.1+    100703 D21  1.1-  0.2-    120131 G96  0.2-  0.0+
020202 046  0.4+  0.0+    100704 D21  0.1+  0.5-    120131 G96  0.2+  0.0-
020202 046  0.1-  0.1-    100704 D21  0.4-  0.3-    120131 G96  0.0+  0.0-
020202 046  0.3-  0.3-    100704 D21  0.0-  0.6-    200617 K93  0.0-  0.0+
020202 118  0.2-  0.1-    100704 D21  0.5-  0.6-    200617 K93  0.0-  0.0-
020202 118  0.5-  0.6-    100704 D21  0.5-  0.4-    200617 K93  0.1+  0.0+
020202 118  0.2+  0.2-    100704 D21  0.7-  0.6-    200617 K93  0.1-  0.1+
020204 118  0.5+  0.7-    100704 D21  0.5-  1.1-    200617 K93  0.0-  0.0+
020204 118  0.5-  0.4+    100705 D96  0.5+  0.5-    200617 K93  0.1+  0.1-
020204 118  0.3+  0.1-    100705 D96  0.2-  0.6-    200618 K93  0.1-  0.1+
020206 644  0.2-  0.1+    100705 D96  0.3+  0.3-    200618 K93  0.1-  0.2-
020206 608  0.1-  0.5-    100713 474  0.1+  0.2+    200618 K93  0.0-  0.1-
020206 608  0.6-  0.4-    100713 474  0.1-  0.4+    200618 K93  0.0-  0.1+
020207 644  0.3+  0.3-    100713 474  0.3+  0.5+    200618 K93  0.0-  0.0-
020207 644  0.2+  0.2+    100713 474  0.2-  0.4+
020207 644  0.3+  0.2-    100719 D21  0.4-  0.3-

Ephemeris:
2002 BF25                a,e,i = 1.07, 0.22, 6                   q = 0.8352
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 05 20    19 12 31.4 -46 12 34   0.2822  1.2155   130.9    39.0    21.7
...
2020 06 04    19 29 05.5 -50 16 09   0.2021  1.1729   138.2    35.2    20.7
...
2020 06 12    19 32 46.5 -52 59 28   0.1636  1.1476   141.2    33.7    20.2
...
2020 06 18    19 31 39.6 -55 25 57   0.1364  1.1275   142.6    33.2    19.7
2020 06 19    19 31 01.4 -55 52 59   0.1321  1.1241   142.7    33.2    19.7
2020 06 20    19 30 13.7 -56 20 53   0.1277  1.1206   142.8    33.3    19.6
...
2020 06 26    19 21 12.1 -59 30 41   0.1026  1.0995   142.3    34.5    19.1
...
2020 07 04    18 47 04.4 -65 17 16   0.07129 1.0704   137.6    39.8    18.4
...
2020 07 19    11 08 04.8 -52 12 37   0.02550 1.0141    84.4    94.2    17.8

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-M35




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