ETC Request ID: STIS.ta.1006975

Requested Signal/Noise Ratio = 100.000

gives: Time = 0.3247 seconds

gives: Time to Saturation (for a single exposure) = 8.97 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 32,555.966 10,572.44 102.82
    Background 0.164 0.05 0.23
        Sky 0.002 5.09e-04 0.02
        Dark Current 0.162 0.05 0.23
    Read Out 24.60
Total in selected region 32,556.130 10,572.50 105.72
Brightest Pixel (single exposure) 13,380.525 4,345.28
Global Count Rates
    Source only 65,111.932 21,144.888
    Background (sky+dark) 18,917.910 6,143.53
Background per unit area
    Sky Background (arcsec-2) 0.070 0.023
    Dark Current (arcsec-2) 7.200 2.338
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 0.21
Effective Wavelength 6736.11 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: Kurucz Models G2V 5860 4.4
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 7.29 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2