ETC Request ID: STIS.ta.1007288

Requested Signal/Noise Ratio = 40.000

gives: Time = 54.1325 seconds

gives: Time to Saturation (for a single exposure) = 5,529.91 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 38.308 2,073.73 45.54
    Background 0.163 8.83 2.97
        Sky 0.001 0.06 0.24
        Dark Current 0.162 8.77 2.96
    Read Out 24.60
Total in selected region 38.471 2,082.55 51.84
Brightest Pixel (single exposure) 21.700 1,174.68
Global Count Rates
    Source only 76.617 4,147.452
    Background (sky+dark) 18,941.131 1,025,331.54
Background per unit area
    Sky Background (arcsec-2) 0.047 2.521
    Dark Current (arcsec-2) 7.200 389.754
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 0.28
Effective Wavelength 3740.25 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F28X50OII
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: User uploaded spectrum: gj1132.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