Observing schedule for long campaigns

For long campaigns, the following guidelines apply.
These require 21 observations over a typical period of 14 days.

  source       times observed    note

  A            3                 fiducial
  B            3                 fiducial
  C            2                 primary
  D            3                 secondary 
  E            2                 secondary
  F, G, H, I   2                 tertiary

14-day campaign

  Week 1           Week 2
  day  sequence    day  sequence
   1   A  B         8   A  D
   2   C            9   E   
   3   E  D        10   F  C
   4   F           11   G
   5   G           12   H  D
   6   H  B        13   I   
   7   I           14   A  B

Longer campaigns can spread the existing schedule so that at
least one standard is observed per day.  

Shorter campaigns can simply collapse the existing schedule by
combining two one-standard days into single two-standard days.