select=

The select= keyword that many (but not all!) miriad programs use has a very rich set of commands to select from a visibility data stream. Detailed in the Users Guide, we merely provide a short cheat sheet here. The mirhelp select command also provides more details (look for select.kdoc)

  time(t1,t2)                   in UT, accepts yymmmdd.fff or yymmmdd:hh:mm:ss.s format [t1,t2)
  ant(a1,a2,...)(b1,b2,..)      select baselines from the a's and b's . b's optional
  uvrange(uvmin,uvmax)          (in kLambda)
  uvnrange(uvmin,uvmax)         (in nanosecs)
  vis(n1,n2)                    visibility number n1..n2 (inclusive)
  increment(inc)                every inc'th visibility
  ra(r1,r2)
  dec(d1,d2)
  ha(h1,h1)                     hour angle
  lst(lst1,lst2)                LST range
  elevation(el1,el2)
  dra(p1,p2)
  ddec(p1,p2)
  dazim(p1,p2)
  delev(p1,p2)
  pointing(p1,p2)               uses MAX(az,el) error
  pol(p1,p2,p3,...)             polarization (select from "i,q,u,v,xx,yy,xy,yx,rr,ll,rl,lr")
  source(NAME1,NAME2,...)
  purpose(LIST[,option])        Select on purpose (BFGPRSO). CARMA guarentees them to be alphabetical.
  freq(f1,f2)                   sky freq must be in range f1..f2 (GHz)
  amp(amplo,amphi)              one number means amp(amplo)
  shadow(d)                     shadowing less than 'd' (meter)
  bin(b1,b2)
  on(n)                         select on (1) or off (0) for single dish observations
  auto                          auto correlations
  window(w1,w2,...)             spectral window number (1..maxspect)
  seeing(s1,s2)                 select when rms path variations is between s1..s2 (microns)

These may be combined (logical AND) with comma separation, e.g. select=ant(1),win(5).