[Iaude] MPEC K81: 2003 EP4 [a=1.36,e=0.64,i=0.5,H=23.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon May 24 10:19:06 EDT 2021


M.P.E.C. 2021-K81                                  Issued 2021 May 24, 14:17 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

                                    2003 EP4                                    


                           Revision to MPEC 2003-E31                            

Additional Observations:
     K03E04P KC2009 11 01.40840523 25 13.345-03 48 06.36         21.31GVEK081T12
     K03E04P KC2009 11 01.41039623 25 14.545-03 47 58.75         21.27GVEK081T12
     K03E04P KC2009 11 01.41266423 25 15.915-03 47 50.11         21.30GVEK081T12
     K03E04P KC2009 11 09.36454700 15 00.220+01 19 53.62         22.21GVEK081T12

Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers M. Micheli, G. T.
    Elliott, 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
091101 T12 0.06- 0.03-    091109 T12 0.03- 0.01-    MPO 50748   -0.02 days

Orbital elements:
2003 EP4                                                 Earth MOID = 0.0009 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M  43.21591              (2000.0)            P               Q                  
n   0.62166069     Peri.   66.30056     +0.15292983     +0.98822546             
a   1.3596708      Node   212.49733     -0.90990420     +0.13891607             
e   0.6446968      Incl.    0.51052     -0.38559928     +0.06413091             
P   1.59           H   23.92          G   0.15           U   0                  
Residuals in seconds of arc
030307 704  0.1-  0.4+    030309 599  1.6+  0.1+    030311 448  1.2-  0.2+
030307 704  0.0   0.8-    030309 599  1.2+  0.1-    030311 448  0.3+  0.2+
030307 704  0.3+  1.0-    030309 599  4.4+  0.0     030311 670  0.3+  0.3-
030307 704  0.2+  1.2-    030309 599  3.3+  0.1-    030311 670  0.0   0.3+
030307 704  0.4+  0.8-    030309 599  2.2+  0.1-    030311 670  0.7+  0.2-
030308 926 (2.7+  2.4-)   030309 599  1.7+  0.1+    030311 670  0.4+  0.2+
030308 926 (0.8+  1.9-)   030309 J95  0.1-  0.1+    030311 670  0.2+  0.7+
030308 926 (1.5+  2.2-)   030309 J95  0.6-  0.2+    030311 670  0.1+  0.4-
030308 428  0.8-  0.1+    030309 J95  0.2-  0.1+    030311 670  0.2+  0.0
030308 428  0.7+  0.5+    030310 379  0.4+  0.7-    030311 620  0.4+  0.6+
030308 428  0.0   0.3+    030310 379  0.4-  0.0     030311 620 (0.5-  1.3-)
030308 428  0.1-  0.3+    030310 379 (1.0+  0.6-)   030311 620  0.2-  0.2-
030308 428  1.0+  0.7-    030310 118  1.0-  0.4+    030311 620 (1.9-  0.6-)
030308 428  1.0-  0.2-    030310 118  0.5-  0.5-    030311 J95  0.6-  0.3+
030308 J87  0.7-  0.8-    030310 118  0.9-  0.5-    030311 J95  0.4+  0.4-
030308 J87  0.1+  0.3+    030310 118  0.2-  0.8+    030311 J95  0.5-  0.5-
030308 J87  1.4-  0.2-    030310 118  2.3+  0.4+    030311 J95  0.4+  0.3+
030309 704  0.2-  0.1+    030310 118  0.5+  0.1+    030312 670  0.0   0.2+
030309 704  0.2-  0.4-    030310 599 (6.1+  0.0 )   030312 670  1.0-  0.2+
030309 704  0.4-  0.4-    030310 599  0.2+  0.1-    030312 670  2.3+  1.7-
030309 704  0.2+  0.5-    030310 599  0.4-  0.2+    030312 333  0.1-  0.3+
030309 704  0.0   0.0     030310 599  0.6-  0.5-    030312 333 (2.4-  0.3+)
030309 704  1.0+  0.4-    030310 599 (5.4+  0.2-)   030312 333 (1.7-  0.8+)
030309 704  0.4+  0.0     030310 599  2.4+  0.6+    030312 333 (2.7-  0.1+)
030309 704  1.5+  0.4-    030310 599  0.9+  0.1+    030312 670  0.2-  0.4-
030309 704  0.3+  0.1-    030310 170 (1.9-  0.0 )   030312 670  1.4+  0.9-
030309 428  0.3+  0.8+    030310 170 (3.0-  0.6+)   030312 670  1.4-  0.2-
030309 428  0.4+  0.0     030310 170  1.3-  0.9-    030312 670  1.3+  0.4-
030309 428  1.1-  0.9+    030310 170  0.3-  0.9+    091101 T12  0.0   0.0
030309 428  0.8-  0.1+    030311 448  0.6-  0.3-    091101 T12  0.0   0.0
030309 599  1.9+  0.1+    030311 448  0.1+  0.3-    091101 T12  0.0   0.0
030309 599  0.6+  0.2+    030311 448  0.5-  0.4-    091109 T12  0.0   0.0

Ephemeris:
2003 EP4                 a,e,i = 1.36, 0.64, 1                   q = 0.4831
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 24    04 18 57.3 +21 07 24   2.8443  2.0717    32.8    15.2    28.6
...
2021 05 09    04 47 22.4 +22 06 03   2.9942  2.1216    24.9    11.6    28.6
...
2021 05 17    05 02 27.7 +22 29 23   3.0604  2.1444    20.7     9.6    28.6
...
2021 05 23    05 13 44.4 +22 43 15   3.1035  2.1598    17.5     8.1    28.6
2021 05 24    05 15 36.9 +22 45 16   3.1102  2.1622    17.0     7.9    28.6
2021 05 25    05 17 29.4 +22 47 11   3.1166  2.1646    16.5     7.6    28.6
...
2021 05 31    05 28 43.1 +22 56 57   3.1521  2.1781    13.3     6.2    28.6
...
2021 06 08    05 43 37.8 +23 05 15   3.1902  2.1938     9.1     4.2    28.5
...
2021 06 23    06 11 22.0 +23 06 27   3.2327  2.2166     1.2     0.5    28.3

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-K81




More information about the Iaude mailing list