SAAO SPRAT
Exposure Time Calculator
Log x-Axis:
Off
On
Plot Mode:
SNR
Seeing
Sky Brightness
Instrument:
SPRAT
SNR:
Slit:
SPRAT 2 arcsec slit
Seeing (arcsec):
Spectrometer arm:
SPRAT Red region
SPRAT Blue region
Sky Brightness:
Magnitude Min
Magnitude Max
Exposure Time Max
(Version 2.0.1 - 21 Jan 2020, Marco Lam and Doug Arnold)