ETC Request ID: STIS.ta.1302393

Exposure time (seconds) = 0.1000

gives: SNR = 136.3615

gives: Time to Saturation (for a single exposure) = 1.34 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 471,125.985 47,112.60 217.05
    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 471,152.182 47,115.22 345.50
Brightest Pixel (single exposure) 89,495.540 8,949.55
Global Count Rates
    Source only 525,683.428 52,568.343
    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 = 12.28 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