ETC Request ID: STIS.ta.826439

Requested Signal/Noise Ratio = 40.000

gives: Time = 3.9088 seconds

gives: Time to Saturation (for a single exposure) = 1,534.57 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 536.406 2,096.72 45.79
    Background 0.172 0.67 0.82
        Sky 0.001 4.20e-03 0.06
        Dark Current 0.171 0.67 0.82
    Read Out 25.50
Total in selected region 536.578 2,097.39 52.42
Brightest Pixel (single exposure) 78.198 305.66
Global Count Rates
    Source only 1,072.812 4,193.435
    Background (sky+dark) 19,991.367 78,142.76
Background per unit area
    Sky Background (arcsec-2) 0.048 0.187
    Dark Current (arcsec-2) 7.600 29.707
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 0.07
Effective Wavelength 10222.73 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F28X50OIII
Gain: 4.0
# Frames: 1
Binning: 1
Dark:


Target: [point source]
Spectrum: Kurucz Models M2V 3500 4.6
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 12.33 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 24.2