ETC Request ID: STIS.ta.1307507

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.1441 seconds

gives: Time to Saturation (for a single exposure) = 20.56 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 14,483.581 2,086.94 45.68
    Background 0.659 0.09 0.31
        Sky 0.434 0.06 0.25
        Dark Current 0.225 0.03 0.18
    Read Out 25.20
Total in selected region 14,484.240 2,087.04 52.17
Brightest Pixel (single exposure) 5,835.806 840.88
Global Count Rates
    Source only 28,967.163 4,173.881
    Background (sky+dark) 53,877.858 7,763.27
Background per unit area
    Sky Background (arcsec-2) 19.296 2.780
    Dark Current (arcsec-2) 10.000 1.441
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 0.20
Effective Wavelength 6848.33 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: Kurucz Models F0V 7200 4.3
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 14.5 in filter Johnson/V
Redshift: None
Emission Lines:
Line at Center 5007.0 Å    FWHM 15.0 Å   Flux 5e-12 Fλ
Line at Center 5876.0 Å    FWHM 15.0 Å   Flux 1e-12 Fλ
Line at Center 6563.0 Å    FWHM 15.0 Å   Flux 5e-12 Fλ


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 26.2