Note:
This ETC is under development, and only provids a text-based table.
"Source flux" for an extended source shold be given in units of arcsec2.
"Slit width" should be 0.4 arcsec.
"Extraction aperture" is in units of a binded pixel number.
"CCD binning" is [spatial] x [spectral].
"Exposure time" should be the value scaled by the IFU throughput (~0.85) and the slit width (~1.1).
When the putative exposuretime is 1200 sec, 1122 sec should be input.