ETC Request ID: STIS.ta.1302109

Exposure time (seconds) = 0.5000

gives: SNR = 98.8996

gives: Time to Saturation (for a single exposure) = 9.89 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 63,846.495 31,923.25 178.67
    Background 26.197 13.10 3.62
        Sky 0.597 0.30 0.55
        Dark Current 25.600 12.80 3.58
    Read Out 268.80
Total in selected region 63,872.692 31,936.35 322.78
Brightest Pixel (single exposure) 12,128.434 6,064.22
Global Count Rates
    Source only 71,240.062 35,620.031
    Background (sky+dark) 26,214.997 13,107.50
Background per unit area
    Sky Background (arcsec-2) 33.188 16.594
    Dark Current (arcsec-2) 10.000 5.000
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 = 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