ETC Request ID: STIS.ta.1003030

Exposure time (seconds) = 0.1000

gives: SNR = 369.4417

gives: Time to Saturation (for a single exposure) = 0.31 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 1,867,980.732 186,798.07 432.20
    Background 23.751 2.38 1.54
        Sky 5.319 0.53 0.73
        Dark Current 18.432 1.84 1.36
    Read Out 262.40
Total in selected region 1,868,004.483 186,800.45 505.62
Brightest Pixel (single exposure) 387,597.959 38,759.80
Global Count Rates
    Source only 2,028,177.917 202,817.792
    Background (sky+dark) 19,044.573 1,904.46
Background per unit area
    Sky Background (arcsec-2) 33.243 3.324
    Dark Current (arcsec-2) 7.200 0.720
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 64.00
    Fraction of flux 0.92
    Fraction of flux in brightest pixel 0.19
Effective Wavelength 7135.93 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: GJ49_scaled2.dat
Extinction E(B-V): None
Normalization: None
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2