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  • MPEC 2016-O284: 2011 SF25

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    M.P.E.C. 2016-O284                               Issued 2016 July 22, 17:11 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2011 SF25
    
                               Revision to MPEC 2011-S41
    
    Additional Observations:
         K11S25F 2C2016 02 05.57520410 50 42.491+14 13 43.60         23.4 RtEO284568
         K11S25F 2C2016 02 05.58397310 50 41.684+14 13 45.65         23.5 RtEO284568
         K11S25F 2C2016 02 05.59317610 50 40.847+14 13 47.71         23.9 RtEO284568
         K11S25F 2C2016 02 09.48593410 44 47.923+14 29 03.63         23.1 RtEO284568
         K11S25F 2C2016 02 09.49471910 44 47.089+14 29 05.78         23.2 RtEO284568
         K11S25F 2C2016 02 09.50433410 44 46.188+14 29 07.92         23.3 RtEO284568
    
    Observer details:
    568 Mauna Kea.  Observers Y. Ramanjooloo, D. Hung.  Measurer D. J. Tholen.
        2.24-m University of Hawaii reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    160205 568 97.0+ 70.5-    160209 568 0.03+ 0.02-    MPO232599   -0.065 day
    
    Orbital elements:
    2011 SF25                                                Earth MOID = 0.1188 AU
    Epoch 2016 July 31.0 TT = JDT 2457600.5                 MPC
    M  86.95069              (2000.0)            P               Q
    n   0.25646744     Peri.   49.45023     +0.78047085     -0.62442923
    a   2.4534726      Node   349.06948     +0.51303960     +0.66790610
    e   0.5679570      Incl.    9.37166     +0.35728928     +0.40495627
    P   3.84           H   21.2           G   0.15           U   0
    Residuals in seconds of arc
    110920 J75  0.6-  0.4-    110922 H21  0.1+  0.1-    111001 A17  0.1-  0.1-
    110920 J75  0.3+  0.6+    110922 300  0.5+  0.2-    111002 H21  0.1-  0.1-
    110920 J75  0.3+  0.4-    110922 300  0.6+  0.1+    111002 H21  0.0   0.2-
    110920 J75  0.0   0.0     110922 300  0.3+  0.2+    111002 H21  0.0   0.0
    110920 J75  0.1+  0.4-    110922 300  0.3+  0.3+    111002 H21  0.1-  0.2-
    110920 J75  0.0   0.0     110922 300  0.0   0.0     111003 A24  0.5+  0.4+
    110921 B18  0.3+  0.2-    110922 B18  0.1-  0.3-    111003 A24  0.7+  0.2+
    110921 B18  0.2+  0.3-    110922 B18  0.1-  0.0     111003 A24  0.8+  0.4+
    110921 B18  0.1-  0.7-    110922 B18  0.7-  0.7-    111003 A24  0.1+  0.3+
    110921 I93  0.3-  0.0     110922 J95  0.1-  0.1+    111003 A24  0.2-  0.3+
    110921 I93  0.3-  0.0     110922 J95  0.3-  0.1+    111003 A24  0.1+  0.2-
    110921 I93  0.2-  0.2+    110922 J95  0.2+  0.0     111003 A24  0.1+  0.6+
    110921 I93  0.1-  0.1+    110922 A24  0.8+  0.7+    111004 A24  0.0   0.4+
    110921 J75  0.2-  0.1-    110922 A24  0.5+  0.0     111008 H21  0.0   0.1-
    110921 J75  0.5-  0.2-    110922 A24  0.9+  0.8+    111008 H21  0.2+  0.2-
    110921 B18  0.0   0.0     110923 H21  0.3-  0.0     111008 H21  0.1-  0.2-
    110921 B18  0.0   0.0     110923 H21  0.4-  0.1+    111008 H21  0.0   0.4-
    110921 B18  0.4-  0.6-    110923 H21  0.2-  0.0     111009 H21  0.1-  0.4+
    110921 033  0.1+  0.2+    110924 703  0.0   0.1-    111009 H21  0.0   0.1+
    110921 033 (1.8-  0.3-)   110924 703  0.0   0.3-    111009 H21  0.3-  0.1-
    110921 H21  0.1+  0.1+    110924 703  0.7-  0.5-    111030 H21  0.3+  0.2+
    110921 H21  0.0   0.0     110924 A35  0.3+  0.6+    111030 H21  0.4-  0.5-
    110921 H21  0.1+  0.0     110924 A35  0.3+  0.2+    111030 H21  0.2+  0.4-
    110921 704  0.1+  0.5+    110926 703  0.2-  0.9+    111030 H21  0.2-  0.2-
    110921 H36  0.3-  0.0     110926 703  0.5-  1.2-    111128 291  0.9-  0.5+
    110921 H36  0.0   0.3+    110926 703  0.4+  0.4+    111128 291  0.3-  0.1+
    110921 704  0.1-  0.4+    110926 703  0.7+  0.2-    111128 291  0.3-  0.1+
    110921 H36  0.4+  0.2+    110928 106  0.1+  0.4-    120103 291  0.0   0.4+
    110921 704  0.4-  0.3+    110928 106  0.1-  0.6-    120103 291  0.4+  0.2-
    110921 704  0.7-  0.3+    110928 106  0.1-  0.6+    120103 291  0.9+  0.4+
    110921 704  0.1-  0.2-    110928 106  0.2+  0.9-    120104 291  0.1-  0.1-
    110921 113  0.4-  0.0     110928 204  0.0   0.2-    120104 291  0.0   0.3+
    110921 113  0.1-  0.2-    110928 204  0.1-  0.1-    120104 291  0.1+  0.4+
    110921 113  0.3-  0.1-    110928 204  0.1-  0.2-    120130 H21  0.2+  0.3-
    110921 A17  0.0   0.1-    110928 B49  0.1-  0.0     120130 H21  0.4+  0.2-
    110921 A17  0.1-  0.3-    110928 B49  0.0   0.1+    120130 H21  0.3+  0.0
    110921 A17  0.1-  0.2+    110928 B49  0.1-  0.1-    160205 568  0.0   0.0
    110921 B49  0.2+  0.0     110930 157  0.3+  0.1+    160205 568  0.0   0.0
    110921 B49  0.2+  0.1+    110930 157  0.1-  0.3-    160205 568  0.1+  0.1-
    110921 B49  0.0   0.2-    110930 157  0.1-  0.0     160209 568  0.2-  0.0
    110922 H21  0.0   0.1-    111001 A17  0.3-  0.1-    160209 568  0.1-  0.1+
    110922 H21  0.0   0.0     111001 A17  0.1+  0.0     160209 568  0.2+  0.0
    
    Ephemeris:
    2011 SF25                a,e,i = 2.45, 0.57, 9                   q = 1.0600
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2016 06 22    10 35 42.0 +07 37 46   3.1251  2.8820    66.9    18.9    26.9
    ...
    2016 07 07    10 51 38.1 +05 45 01   3.3847  2.9561    57.0    16.8    27.1
    ...
    2016 07 15    11 00 27.3 +04 42 33   3.5148  2.9942    51.8    15.5    27.2
    ...
    2016 07 21    11 07 10.3 +03 54 49   3.6078  3.0222    47.9    14.4    27.2
    2016 07 22    11 08 18.0 +03 46 48   3.6229  3.0268    47.3    14.3    27.2
    2016 07 23    11 09 25.7 +03 38 46   3.6379  3.0314    46.6    14.1    27.2
    ...
    2016 07 29    11 16 14.4 +02 50 11   3.7252  3.0587    42.8    13.0    27.2
    ...
    2016 08 06    11 25 24.8 +01 44 34   3.8345  3.0943    37.7    11.6    27.3
    ...
    2016 08 21    11 42 46.8 -00 20 20   4.0147  3.1586    28.1     8.7    27.3
    
    A. U. Tomatic                (C) Copyright 2016 MPC           M.P.E.C. 2016-O284
    

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