Relations between NASA and the optics company had been severely strained during the telescope construction, due to frequent schedule slippage and cost overruns.. 
'snapshot observations' are those in which targets ] Only 45 minutes or less of Telescope time, including overheads such as Accasal the Target; snapshot Observations are used to fill in gaps in the sínú schedule that cannot be filled by regular go programs.450 may make 'Target of opportunity' Pvls, in which observations are schedu if a Transient event covered by the as occurs occurs the scheduling cycle.. 