WTTHRESH Type: Adverb (Logical, > 0 => true) Use: Data selection adverb. Defines the weight threshold for data acceptance. If <= 0 then accept all data. If > 0 then only accept data with weight >= WTTHRESH. Null value: 0 => accept all data. Tasks: FITLD....Reads FITS files to load images or UV (IDI or UVFITS) data to disk. WTTHRESH applies only to raw data in FITS IDI format.