ETC Request ID: STIS.ta.1009845

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.3899 seconds

gives: Time to Saturation (for a single exposure) = 17.12 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 29,053.995 11,327.15 106.43
    Background 23.751 9.26 3.04
        Sky 5.319 2.07 1.44
        Dark Current 18.432 7.19 2.68
    Read Out 262.40
Total in selected region 29,077.746 11,336.41 283.18
Brightest Pixel (single exposure) 7,008.642 2,732.43
Global Count Rates
    Source only 30,773.807 11,997.643
    Background (sky+dark) 19,044.573 7,424.82
Background per unit area
    Sky Background (arcsec-2) 33.243 12.960
    Dark Current (arcsec-2) 7.200 2.807
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 64.00
    Fraction of flux 0.94
    Fraction of flux in brightest pixel 0.23
Effective Wavelength 5973.86 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: Power Law with index -1.0
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 14.63 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2