ETC Request ID: STIS.ta.1003071

Exposure time (seconds) = 0.3000

gives: SNR = 76.1491

gives: Time to Saturation (for a single exposure) = 8.48 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 76,970.434 23,091.13 151.96
    Background 23.751 7.13 2.67
        Sky 5.319 1.60 1.26
        Dark Current 18.432 5.53 2.35
    Read Out 262.40
Total in selected region 76,994.185 23,098.26 303.24
Brightest Pixel (single exposure) 14,149.492 4,244.85
Global Count Rates
    Source only 87,147.891 26,144.367
    Background (sky+dark) 19,044.573 5,713.37
Background per unit area
    Sky Background (arcsec-2) 33.243 9.973
    Dark Current (arcsec-2) 7.200 2.160
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 64.00
    Fraction of flux 0.88
    Fraction of flux in brightest pixel 0.16
Effective Wavelength 7922.68 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 52X0.1
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: User uploaded spectrum: LP55-41_scaled.dat
Extinction E(B-V): None
Normalization: None
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

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These results were computed using: ETC version 25.2