ETC Request ID: STIS.ta.1307509

Exposure time (seconds) = 3.0000

gives: SNR = 272.3853

gives: Time to Saturation (for a single exposure) = 12.37 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 39,739.205 119,217.62 345.28
    Background 30.910 92.73 9.63
        Sky 5.310 15.93 3.99
        Dark Current 25.600 76.80 8.76
    Read Out 268.80
Total in selected region 39,770.115 119,310.35 437.68
Brightest Pixel (single exposure) 9,698.593 29,095.78
Global Count Rates
    Source only 42,072.491 126,217.472
    Background (sky+dark) 26,384.322 79,152.97
Background per unit area
    Sky Background (arcsec-2) 33.188 99.564
    Dark Current (arcsec-2) 10.000 30.000
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 64.00
    Fraction of flux 0.94
    Fraction of flux in brightest pixel 0.23
Effective Wavelength 5867.64 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 52X0.1
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