ETC Request ID: STIS.ta.1006671

Exposure time (seconds) = 0.7000

gives: SNR = 66.7641

gives: Time to Saturation (for a single exposure) = 37.48 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 7,139.051 4,997.34 70.69
    Background 0.163 0.11 0.34
        Sky 0.001 7.65e-04 0.03
        Dark Current 0.162 0.11 0.34
    Read Out 24.60
Total in selected region 7,139.214 4,997.45 74.85
Brightest Pixel (single exposure) 3,201.845 2,241.29
Global Count Rates
    Source only 14,278.101 9,994.671
    Background (sky+dark) 18,944.019 13,260.81
Background per unit area
    Sky Background (arcsec-2) 0.049 0.034
    Dark Current (arcsec-2) 7.200 5.040
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 0.22
Effective Wavelength 6107.71 Å

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


Target: [point source]
Spectrum: Bruzual Synthetic Stellar Spectra B2 V
Extinction E(B-V): Milky Way Diffuse (Rv=3.1) = 0.41 applied before normalization
Normalization: Renormalized to vegamag = 8.59 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2