The Top 25 Orbit Calculators (as of 9 Mar 2010) Just for amusement, counts were made of the number of orbits in the orbit catalog "master file" attributed to each WDS reference code, as well as the percentage of those orbits labelled as "keepers" (i.e., currently considered the best orbit for each system - these are the ones that appear in the online catalog). The table below lists the top 25 orbit calculators, together with the dates over which they were active (based on dates of their earliest and most recent papers in the WDS reference file). These reference codes usually refer to the first author of a paper; no attempt has been made to merge totals for groups of authors who frequently collaborate (such as, for example, Csa+Doc+Lin+Pri+Tam or Bdl+Hrt+Msn+Sey+WSI). Finally, the master file is mostly complete for recent papers but undoubtedly less so for earlier efforts, especially papers published more than ~50 years ago. It is doubtful that any of those very early orbits would be considered keepers today, however. Top 25 by total number of orbits: rank RefCode Dates Active Ntotal Nkeepers %keepers -------------------------------------------------------- 1 Hei 1954-2001 748 210 28% 2 Baz 1927-1994 582 49 8 3 Doc 1984-2010 325 140 43 4 Hrt 1984-2010 241 195 81 5 HIP 1997-1997 235 156 66 6 Gln 2006-2007 211 122 58 7 Sod 1998-1999 210 87 41 8 Sta 1962-1985 197 16 8 9 Sca 1979-2010 192 75 39 10 Ole 1970-2006 164 70 43 11 Cou 1952-2002 163 38 23 12 Sey 1999-2002 142 123 87 13 Msn 1993-2010 131 90 69 14 B__ 1921-1968 130 3 2 15 Dob 1875-1934 120 0 0 16 Jnc 2005-2005 101 81 80 17 Pop 1967-2007 96 23 24 18 Zul 1967-2000 82 7 9 18 Cve 2005-2010 82 47 57 20 Fin 1926-1978 71 6 8 20 Egg 1945-1982 71 3 4 22 Pbx 1998-2002 68 37 54 22 See 1892-1911 68 0 0 24 Mlr 1938-1997 66 5 8 25 Nov 2005-2008 54 27 50 25 Lin 1983-2010 54 27 50 all 6416 2166 34% Top 25 by total number of keepers: rank RefCode Dates Active Ntotal Nkeepers %keepers -------------------------------------------------------- 1 Hei 1954-2001 748 210 28% 2 Hrt 1984-2010 241 195 81 3 HIP 1997-1997 235 156 66 4 Doc 1984-2010 325 140 43 5 Sey 1999-2002 142 123 87 6 Gln 2006-2007 211 122 58 7 Msn 1993-2010 131 90 69 8 Sod 1998-1999 210 87 41 9 Jnc 2005-2005 101 81 80 10 Sca 1979-2010 192 75 39 11 Ole 1970-2006 164 70 43 12 Baz 1927-1994 582 49 8 13 Cve 2005-2010 82 47 57 14 Zir 2001-2010 49 45 92 15 Cou 1952-2002 163 38 23 16 Pbx 1998-2002 68 37 54 17 Bdl 2006-2007 33 31 94 18 Lin 1983-2010 54 27 50 18 Nov 2005-2008 54 27 50 20 Hop 1945-1974 50 26 52 20 WSI 1997-2008 29 26 90 22 Alz 1996-2009 44 25 57 23 Pop 1967-2007 96 23 24 23 Mnt 1994-2006 51 23 45 25 Bag 1977-2007 44 20 45 all 6416 2166 34%