ETC Request ID: STIS.ta.1163467

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.1401 seconds

gives: Time to Saturation (for a single exposure) = 23.03 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 14,898.907 2,086.90 45.68
    Background 0.227 0.03 0.18
        Sky 0.002 2.19e-04 0.01
        Dark Current 0.225 0.03 0.18
    Read Out 25.20
Total in selected region 14,899.134 2,086.93 52.17
Brightest Pixel (single exposure) 5,209.811 729.74
Global Count Rates
    Source only 29,797.815 4,173.802
    Background (sky+dark) 26,257.865 3,677.96
Background per unit area
    Sky Background (arcsec-2) 0.070 0.010
    Dark Current (arcsec-2) 10.000 1.401
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 0.17
Effective Wavelength 7585.46 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F25ND3
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: User uploaded spectrum: GJ832_HLSP_for_ETC_targetacquisition.txt
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 26.1