teff = ton*toff/(ton + toff) 
 

  teff = tint / 2  ; tint is the integration time
 

Contributed By: Bob Garwood from Tom Bania's original GBT IDL package

Version

$Id$

Parameters
tsys in, required float	system temperature in milliKelvins
df in, required float	Channel separation in Hz.
npol in, required integer	Number of polarization (or independent signals).
k1 in, required float	backend sampling efficiency, 1.032 for 9-level autocorrelator, 1.235 for 3-level.
k2 in, required float	Channel weighting function. 1.21 for uniform for the GBT spectrometer (sinc(x) channel response) and 2.00 for Hanning smoothed GBT spectrometer data.
xmin in, required float	Minimum integration time in minutes.
xmax in, required float	Maximum integration time in minutes.
no_pts in, required integer	Number of unique teff values to calculate th_rms between xmin and xmax.
time_x out variable	The array of integration times used.
rms_y out variable	The array of theoretical RMS values calculated. seconds.