ETC Request ID: STIS.ta.1302100

Exposure time (seconds) = 0.2000

gives: SNR = 99.5440

gives: Time to Saturation (for a single exposure) = 7.45 seconds


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Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 52,539.854 10,507.97 102.51
    Background 0.659 0.13 0.36
        Sky 0.434 0.09 0.29
        Dark Current 0.225 0.05 0.21
    Read Out 25.20
Total in selected region 52,540.513 10,508.10 105.56
Brightest Pixel (single exposure) 16,115.023 3,223.00
Global Count Rates
    Source only 105,079.707 21,015.941
    Background (sky+dark) 53,877.858 10,775.57
Background per unit area
    Sky Background (arcsec-2) 19.296 3.859
    Dark Current (arcsec-2) 10.000 2.000
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 0.15
Effective Wavelength 8165.96 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F28X50LP
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 = 14.45 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