The initial calibration data apply to PSPCC. Has calibration data been taken for PSPCB?
(2/15/94)
Yes. Calibration type observations have been taken regularly throughout the mission on "maintenance days". PSPCB was used for pointed observations after the demise of PSPCC (at the end of the all-sky-survey phase) and in- flight calibration data have been taken with PSPCB throughout its performance lifetime.
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