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  • MPEC 2020-F159 : 2010 EF44

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    M.P.E.C. 2020-F159                               Issued 2020 March 26, 15:00 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
    
                                    2010 EF44                                
    
    
                               Revision to MPEC 2010-E80                            
    
    Additional Observations:
         K10E44F  C2020 03 23.57011014 38 14.721+15 42 04.25         23.94GVEF159T14
         K10E44F  C2020 03 23.57476514 38 14.311+15 42 09.31         23.90GVEF159T14
         K10E44F  C2020 03 23.57941514 38 13.901+15 42 14.40         23.96GVEF159T14
         K10E44F KC2020 03 24.55831614 36 48.918+15 59 55.31         24.13GVEF159T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer D. Hung.  Measurer D. 
       J. Tholen.  2.24-m f/10.1 reflector + CCD.
    T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observer C. Crowder.  Measurer 
       D. J. Tholen.  3.6-m f/4.1 reflector + MegaCam.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    200323 T14 0.04- 0.00-    200324 T12 0.04- 0.00-    MPO192610   -0.46 days
    
    Orbital elements:
    2010 EF44                                           PHA, Earth MOID = 0.0215 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M  71.45750              (2000.0)            P               Q
    n   0.30476478     Peri.  235.09740     +0.63956127     -0.76576835
    a   2.1868863      Node   173.70609     +0.73257653     +0.63374449
    e   0.8880482      Incl.   38.02336     -0.23300860     -0.10939269
    P   3.23           H   20.2           G   0.15           U   2
    Residuals in seconds of arc
    100305 C51  0.5-  0.4+    100316 926  0.6+  0.3-    100323 H21  0.2+  0.1+
    100306 C51  0.5-  0.3+    100316 151  0.8+  1.1-    100323 H21  0.1+  0.5+
    100315 J75  0.4+  0.2-    100316 151  0.4-  0.3-    100323 H21  0.1+  0.3+
    100315 J75  0.7+  0.3-    100316 151  1.0-  0.8+    100323 H21  0.0   0.1+
    100315 J75 (3.6+  2.2-)   100316 204  0.2+  0.4+    100324 926  0.0   0.2+
    100315 J75  0.3-  0.1+    100317 204  0.2-  0.2+    100324 926  0.1+  0.1+
    100315 J75  0.6-  0.1+    100317 204  0.1-  0.1-    100324 926  0.1-  0.1+
    100315 J75  0.3-  0.0     100317 160  0.9-  0.5+    100325 291  0.1-  0.0
    100315 J95  0.1+  0.2-    100317 160  0.4-  0.2+    100325 291  0.1-  0.0
    100315 J75  0.2-  0.2-    100317 160  0.9-  0.2+    100325 291  0.1+  0.0
    100315 J95  0.0   0.1+    100318 H26  0.3-  0.7-    100403 291  0.4+  0.1+
    100315 J75  0.6-  0.1-    100318 H26  1.0-  0.1-    100403 291  0.0   0.0
    100315 J95  0.1-  0.4-    100318 H26  0.3+  0.6+    100403 291  0.2+  0.1+
    100315 J75  0.7-  0.1-    100318 H21  0.0   0.0     100409 291  0.1-  0.1+
    100315 J95  0.6+  0.0     100318 H21  0.1-  0.0     100409 291  0.2-  0.0
    100315 926  0.2-  0.3+    100318 H21  0.1+  0.3+    100409 291  0.4-  0.1+
    100315 926  0.2-  0.4+    100318 H21  0.2+  0.1+    100418 H21  0.7+  0.2-
    100315 926  0.3-  0.4+    100318 H21  0.2+  0.0     100418 H21  0.0   0.2+
    100315 474  0.0   0.1+    100318 H21  0.0   0.1+    100418 H21  0.1-  0.1+
    100315 474  0.5-  1.0-    100318 A13  0.0   0.1+    200323 T14  0.0   0.0
    100315 474  0.3+  0.1+    100318 A13  0.2-  0.4-    200323 T14  0.0   0.0
    100315 474  1.0+  1.2-    100319 H21  0.1+  0.3+    200323 T14  0.0   0.0
    100316 926  0.1+  0.2+    100319 H21  0.1+  0.2+    200324 T12  0.1-  0.1+
    100316 926  0.2+  0.0     100319 H21  0.1+  0.5+
    
    Ephemeris:
    2010 EF44                a,e,i = 2.19, 0.89, 38                  q = 0.2448
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 02 25    15 05 55.3 +06 51 22   1.7307  2.2888   111.6    23.7    24.3
    ...
    2020 03 11    14 54 03.6 +11 41 44   1.6928  2.4317   127.8    18.8    24.2
    ...
    2020 03 19    14 44 32.3 +14 17 00   1.6919  2.5042   135.9    16.1    24.2
    ...
    2020 03 25    14 36 10.3 +16 07 49   1.7024  2.5569   141.2    14.2    24.2
    2020 03 26    14 34 41.5 +16 25 32   1.7052  2.5656   142.0    13.9    24.2
    2020 03 27    14 33 11.4 +16 43 01   1.7083  2.5742   142.7    13.6    24.2
    ...
    2020 04 02    14 23 49.1 +18 21 41   1.7333  2.6251   146.4    12.1    24.2
    ...
    2020 04 10    14 10 44.9 +20 13 36   1.7844  2.6911   148.7    11.2    24.3
    ...
    2020 04 25    13 46 53.9 +22 31 59   1.9335  2.8090   143.8    12.2    24.6
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-F159
    


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