2005                                           2006
   unofficial       Object                     maximal possible
                                                  duration, h
zenith duration,h            zenith   J  F  M  A  M  J  J  A  S  O  N  D Total
11-58    58        Mrk 501    11-30   3 24 44 74 75 54 19  1  0  0  0  0   294
23-43    38      1ES2344+514  23-40   2  0  0  0  0 10 46 98 93 92 65 38   444
36-90    35      1ES1959+65   36-50   0  0  6 26 51 82 99 98 70 49 22  0   503
 9-46    36        Mrk 421     9-30  68 61 75 50 16  0  0  0  0  0  9 42   321
14-34    17      1ES1426+428  14-30  17 36 68 69 64 29  3  0  0  0  0  0   286
-----    --         3C 273    27-40  47 55 77 62 34  2  0  0  0  0  0 20   297