ETC Request ID: STIS.ta.1006655

Exposure time (seconds) = 0.3000

gives: SNR = 103.9972

gives: Time to Saturation (for a single exposure) = 7.01 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 37,966.941 11,390.08 106.72
    Background 0.164 0.05 0.22
        Sky 0.002 4.70e-04 0.02
        Dark Current 0.162 0.05 0.22
    Read Out 24.60
Total in selected region 37,967.104 11,390.13 109.52
Brightest Pixel (single exposure) 17,125.034 5,137.51
Global Count Rates
    Source only 75,933.881 22,780.164
    Background (sky+dark) 18,917.910 5,675.37
Background per unit area
    Sky Background (arcsec-2) 0.070 0.021
    Dark Current (arcsec-2) 7.200 2.160
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 0.23
Effective Wavelength 6058.79 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: Bruzual Synthetic Stellar Spectra B5 V
Extinction E(B-V): Milky Way Diffuse (Rv=3.1) = 0.27 applied before normalization
Normalization: Renormalized to vegamag = 7.04 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2