ETC Request ID: STIS.ta.1368337

Requested Signal/Noise Ratio = 40.000

gives: Time = 123.7120 seconds

gives: Time to Saturation (for a single exposure) = 33,057.25 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 17.460 2,160.00 46.48
    Background 0.978 120.95 11.00
        Sky 0.744 92.00 9.59
        Dark Current 0.234 28.95 5.38
    Read Out 25.20
Total in selected region 18.438 2,280.95 54.00
Brightest Pixel (single exposure) 3.630 449.08
Global Count Rates
    Source only 25.679 3,176.776
    Background (sky+dark) 113,910.262 14,092,062.12
Background per unit area
    Sky Background (arcsec-2) 33.053 4,089.091
    Dark Current (arcsec-2) 10.400 1,286.604
Extraction region
box of 3 x 3 pixels
    Effective Sky Area (pixels) 9.00
    Fraction of flux 0.50
    Fraction of flux in brightest pixel 0.10
Effective Wavelength 9479.43 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: 50CCD
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: User uploaded spectrum: ETC_2M1237_15870-Burgasser02-Liebert07-Saur-min.txt
Extinction E(B-V): None
Normalization: None
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 27.2