[Iaude] MPEC X13: 2014 EH45 [a=1.19,e=0.20,i=21.3,H=22.84]

Sun Dec 3 09:10:38 EST 2023

M.P.E.C. 2023-X13                              Issued 2023 December 3, 14:09 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

                                   2014 EH45                                    


                           Revision to MPEC 2014-E77                            

Additional Observations:
     K14E45H @C2001 10 11.82784321 43 20.59 +00 15 18.8                VEX013950
     K14E45H @C2001 10 11.82935921 43 20.61 +00 15 24.8                VEX013950
     K14E45H @C2001 10 11.83087621 43 20.61 +00 15 29.6                VEX013950
     K14E45H @C2001 10 11.83929021 43 20.80 +00 16 03.3                VEX013950
     K14E45H @C2001 10 11.84080621 43 20.86 +00 16 08.6                VEX013950
     K14E45H @C2001 10 11.84236921 43 20.84 +00 16 14.9                VEX013950
     K14E45H 0C2023 10 21.23794721 09 00.181-05 19 30.99         22.63GVEX013T12
     K14E45H 0C2023 10 21.24563421 09 01.176-05 19 05.73         22.46GVEX013T12
     K14E45H 0C2023 10 21.25284421 09 02.101-05 18 42.09         22.92GVEX013T12
     K14E45H 0C2023 11 11.32332721 53 32.113+08 35 51.49         23.98GVEX013T12

Observer details:
950 La Palma.  Observer .  Measurer S. Deen.  2.5-m Isaac Newton Telescope +
    CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
011011 950 24.3- 28.4-    231111 T12  7.2- 12.8-    E2023-P54   +0.00 days

Orbital elements:
2014 EH45                                                Earth MOID = 0.1166 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  46.67039              (2000.0)            P               Q                  
n   0.76087060     Peri.  270.62787     +0.04278843     +0.99900733             
a   1.1883075      Node     1.95785     -0.70988834     +0.03912651             
e   0.1975532      Incl.   21.26282     -0.70301330     +0.02129476             
P   1.30           H   22.84          G   0.15           U   0                  
Residuals in seconds of arc
011011 950  0.7+  1.2+    140314 807  0.2+  0.5-    140404 807  0.1+  0.1+
011011 950  0.6+  1.3+    140314 807  0.2+  0.2-    140404 807  0.2-  0.5+
011011 950  0.1+  0.2+    140315 204  1.0-  0.0     140404 807  0.2+  0.5+
011011 950  0.5+  1.0+    140315 204  0.2-  0.8+    140408 807  0.0   0.2+
011011 950  1.0+  0.4+    140320 H21  1.0+  0.3-    140409 807  0.1+  0.4+
011011 950  0.2+  0.6+    140320 H21  0.5-  0.3+    140409 807  0.1+  0.4+
140311 G96  0.7+  1.0+    140320 H21  0.8-  0.7+    140419 807  0.4+  0.4+
140311 G96  0.5+  0.3-    140320 H36  0.6-  1.3-    140419 807  0.3+  0.4+
140311 G96  0.3+  0.2+    140320 H36  0.7-  0.7+    140419 807  0.2+  0.2+
140311 G96  0.3-  0.1+    140320 H36  0.5-  0.7+    140922 H21  0.3-  0.4-
140311 G96  0.2-  0.1-    140324 807  0.1+  0.0     140922 H21  0.2-  0.4-
140311 G96  0.1+  0.2+    140324 807  0.1+  0.0     140922 H21  0.6-  0.5-
140311 G96  0.4+  0.3+    140324 807  0.1+  0.0     140923 H21  0.9-  0.0
140311 G96  0.3-  0.2+    140324 807  0.2+  0.0     140923 H21  0.7-  0.3-
140311 G96  0.0   0.0     140324 807  0.1-  0.1+    140923 H21  1.2-  0.1-
140312 291  0.1-  0.2+    140326 H36  0.1+  0.6-    231021 T12  0.1+  0.6+
140312 291  0.1+  0.1+    140326 H36  0.2-  0.1-    231021 T12  0.2+  0.7+
140312 291  0.4-  0.0     140329 703  0.3+  1.1-    231021 T12  0.2+  0.7+
140312 926  0.3+  0.1-    140329 703  1.6+  0.7-    231111 T12  0.1-  0.7+
140312 926  0.2+  0.0     140329 703  0.0   0.5+
140312 926  0.1+  0.2-    140329 703  0.9-  0.7+

Ephemeris:
2014 EH45                a,e,i = 1.19, 0.20, 21                  q = 0.9536
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 03    21 36 32.4 +04 08 08   0.4694  1.2158   107.1    51.3    23.5
...
2023 11 18    22 07 08.3 +11 33 30   0.5987  1.2596   102.2    50.1    24.1
...
2023 11 26    22 23 36.0 +14 36 11   0.6701  1.2814    99.5    49.4    24.4
...
2023 12 02    22 36 08.9 +16 37 21   0.7240  1.2970    97.5    48.9    24.5
2023 12 03    22 38 15.6 +16 56 29   0.7330  1.2995    97.1    48.8    24.6
2023 12 04    22 40 22.8 +17 15 21   0.7420  1.3020    96.8    48.7    24.6
...
2023 12 10    22 53 15.6 +19 03 32   0.7960  1.3165    94.7    48.2    24.8
...
2023 12 18    23 10 54.8 +21 17 03   0.8679  1.3347    92.0    47.5    24.9
...
2024 01 02    23 45 38.3 +25 04 20   1.0004  1.3645    86.9    46.0    25.3

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X13