ETC Request ID: STIS.ta.1371234

Exposure time (seconds) = 0.3000

gives: SNR = 55.5882

gives: Time to Saturation (for a single exposure) = 23.01 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 12,102.531 3,630.76 60.26
    Background 0.978 0.29 0.54
        Sky 0.744 0.22 0.47
        Dark Current 0.234 0.07 0.26
    Read Out 25.20
Total in selected region 12,103.509 3,631.05 65.32
Brightest Pixel (single exposure) 5,215.684 1,564.71
Global Count Rates
    Source only 22,806.660 6,841.998
    Background (sky+dark) 113,910.262 34,173.08
Background per unit area
    Sky Background (arcsec-2) 33.053 9.916
    Dark Current (arcsec-2) 10.400 3.120
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 0.22
Effective Wavelength 6443.55 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: Pickles Models G8V 5333.35K
Extinction E(B-V): None
Normalization: Renormalized to abmag = 15.5 in filter Sloan/G
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 27.2