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  • MPEC 2018-M82 : 2014 YR43

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    M.P.E.C. 2018-M82                                Issued 2018 June 22, 18:01 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
    
                                       2014 YR43
    
                               Revision to MPEC 2015-A12
    
    Additional Observations:
         K14Y43R  C2018 06 21.57125721 06 05.072-05 36 58.45         22.13GVEM082T12
         K14Y43R  C2018 06 21.58081321 06 05.412-05 37 04.05         22.17GVEM082T12
         K14Y43R  C2018 06 22.56828021 06 44.132-05 46 59.92         21.79GVEM082T12
         K14Y43R  C2018 06 22.57022721 06 44.194-05 47 01.02         21.64GVEM082T12
         K14Y43R  C2018 06 22.57163721 06 44.240-05 47 01.84         21.60GVEM082T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. Fohring,
        D. J. Tholen.  Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    180621 T12 0.47+ 0.04-    180622 T12 0.48+ 0.04-    MPO339505   -0.54 day
    
    Orbital elements:
    2014 YR43                                                Earth MOID = 0.2988 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 306.31609              (2000.0)            P               Q
    n   0.25147540     Peri.  268.84820     +0.76025832     -0.53194574
    a   2.4858354      Node   123.16969     +0.61104869     +0.78042252
    e   0.6110172      Incl.   26.45339     -0.22051481     +0.32859462
    P   3.92           H   19.5           G   0.15           U   0
    Residuals in seconds of arc
    141226 C51 (0.3+  1.8-)   150103 807  0.2+  0.0     150123 568  0.0   0.0
    141226 C51  0.2-  0.4-    150103 807  0.1-  0.4-    150123 568  0.1+  0.1-
    141226 C51  0.2+  0.5+    150103 807  0.0   0.0     150128 H21  0.3-  0.3+
    141226 C51  0.5+  0.9+    150103 807  0.2-  0.1-    150128 H21  0.1-  0.0
    141226 C51  1.1-  0.1-    150111 807  0.3-  0.2+    150128 H21  0.8-  0.3+
    141226 C51  0.4-  0.2-    150111 807  0.4-  0.1-    150207 H21  0.3-  0.8-
    141226 C51  1.1+  1.3-    150111 807  0.3-  0.1+    150207 H21  0.3+  0.1-
    141227 C51  0.3+  1.2+    150111 807  0.2-  0.2+    150218 291  0.1+  0.2+
    141227 C51  0.3-  0.1-    150116 568  0.0   0.0     150218 291  0.3-  0.2-
    141230 807  0.9-  0.5-    150116 568  0.1-  0.0     150218 291  0.1-  0.1+
    141230 807  0.8-  0.9-    150117 291  0.2-  0.0     150225 291  0.4+  0.3+
    141230 807 (0.1-  1.6-)   150117 H21  0.4+  0.2+    150225 291  0.2+  0.2+
    141230 807  0.0   1.3-    150117 291  0.1-  0.2+    150225 291  0.1+  0.3+
    141230 807  0.2+  1.4-    150117 291  0.2+  0.3+    150525 695 (4.8-  2.9+)
    141230 568  0.1-  0.1-    150117 H21  0.2+  0.6+    150525 695 (4.1-  2.9+)
    141230 568  0.0   0.0     150117 H21  0.3-  0.7-    150525 695 (4.7-  2.2+)
    141230 F51  0.4+  0.4+    150118 291  0.3-  0.1-    180621 T12  0.1+  0.0
    141230 F51  0.3+  0.7+    150118 291  0.2-  0.2-    180621 T12  0.0   0.0
    150101 807  0.6+  0.2+    150118 291  0.1-  0.1-    180622 T12  0.0   0.1-
    150101 807  0.5+  0.1+    150120 291  0.3-  0.4+    180622 T12  0.0   0.0
    150101 807  0.2+  0.0     150120 291  0.0   0.1+    180622 T12  0.1-  0.1+
    150103 807  0.1+  0.0     150120 291  0.1-  0.2-
    
    Ephemeris:
    2014 YR43                a,e,i = 2.49, 0.61, 26                  q = 0.9669
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 05 23    20 40 40.1 -03 55 44   1.4264  2.0053   109.4    28.4    23.0
    ...
    2018 06 07    20 54 54.6 -04 09 22   1.1595  1.8859   120.2    27.7    22.4
    ...
    2018 06 15    21 01 25.1 -04 45 10   1.0248  1.8209   126.3    26.7    22.1
    ...
    2018 06 21    21 05 42.3 -05 31 26   0.9282  1.7715   131.3    25.5    21.7
    2018 06 22    21 06 22.0 -05 41 08   0.9125  1.7633   132.1    25.3    21.7
    2018 06 23    21 07 00.8 -05 51 27   0.8969  1.7550   133.0    25.1    21.6
    ...
    2018 06 29    21 10 32.8 -07 08 12   0.8061  1.7052   138.3    23.3    21.3
    ...
    2018 07 07    21 14 14.8 -09 39 19   0.6930  1.6382   146.1    20.2    20.8
    ...
    2018 07 22    21 17 24.9 -18 06 24   0.5116  1.5120   162.6    11.6    19.7
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-M82
    

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