ETC Request ID: STIS.ta.1006700

Exposure time (seconds) = 0.7000

gives: SNR = 68.2947

gives: Time to Saturation (for a single exposure) = 15.43 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 29,150.565 20,405.40 142.85
    Background 18.432 12.90 3.59
        Sky 2.329e-04 1.63e-04 0.01
        Dark Current 18.432 12.90 3.59
    Read Out 262.40
Total in selected region 29,168.998 20,418.30 298.78
Brightest Pixel (single exposure) 7,779.393 5,445.58
Global Count Rates
    Source only 30,749.585 21,524.710
    Background (sky+dark) 18,874.368 13,212.06
Background per unit area
    Sky Background (arcsec-2) 0.016 0.011
    Dark Current (arcsec-2) 7.200 5.040
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 6.00
    Fraction of flux 0.95
    Fraction of flux in brightest pixel 0.25
Effective Wavelength 5007.34 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 0.3X0.05ND
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) = 0.2 applied before normalization
Normalization: Renormalized to vegamag = 6.733 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2