ETC Request ID: STIS.ta.1302328

Exposure time (seconds) = 2.0000

gives: SNR = 101.0020

gives: Time to Saturation (for a single exposure) = 72.43 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 5,401.183 10,802.37 103.93
    Background 0.659 1.32 1.15
        Sky 0.434 0.87 0.93
        Dark Current 0.225 0.45 0.67
    Read Out 25.20
Total in selected region 5,401.842 10,803.68 106.95
Brightest Pixel (single exposure) 1,656.716 3,313.43
Global Count Rates
    Source only 10,802.365 21,604.730
    Background (sky+dark) 53,877.858 107,755.72
Background per unit area
    Sky Background (arcsec-2) 19.296 38.593
    Dark Current (arcsec-2) 10.000 20.000
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 0.15
Effective Wavelength 8165.96 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F28X50LP
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: Bruzual Synthetic Stellar Spectra M6 V
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 16.92 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 26.2