ETC Request ID: STIS.ta.1302426

Exposure time (seconds) = 0.1000

gives: SNR = 128.3932

gives: Time to Saturation (for a single exposure) = 1.44 seconds


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Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 437,257.290 43,725.73 209.11
    Background 26.197 2.62 1.62
        Sky 0.597 0.06 0.24
        Dark Current 25.600 2.56 1.60
    Read Out 268.80
Total in selected region 437,283.487 43,728.35 340.56
Brightest Pixel (single exposure) 83,061.818 8,306.18
Global Count Rates
    Source only 487,892.662 48,789.266
    Background (sky+dark) 26,214.997 2,621.50
Background per unit area
    Sky Background (arcsec-2) 33.188 3.319
    Dark Current (arcsec-2) 10.000 1.000
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 7.20
    Fraction of flux 0.90
    Fraction of flux in brightest pixel 0.17
Effective Wavelength 7709.57 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 0.2X0.09
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: Bruzual Synthetic Stellar Spectra M6 V
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 12.361 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

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These results were computed using: ETC version 26.2