Function. Return diameter of star for given -distance and squared visibility. Uses calibration implemented in polynomial expressions.caldiameter(starid_char,calid_char)
Function. Return the diameter of a star using the calibrator and the uncalibrated estimated squared visibilities.npoirates,starid,predictedrate
Propagate the stellar flux through the atmosphere and NPOI, and return the predicted count rate for every NPOI channel. Configuration must be loaded.