ETC Request ID: STIS.ta.1410291

Exposure time (seconds) = 2.0000

gives: SNR = 454.1456

gives: Time to Saturation (for a single exposure) = 2.89 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 103,463.841 206,927.68 454.89
    Background 0.244 0.49 0.70
        Sky 0.001 2.17e-03 0.05
        Dark Current 0.243 0.49 0.70
    Read Out 26.10
Total in selected region 103,464.085 206,928.17 455.64
Brightest Pixel (single exposure) 41,469.094 82,938.19
Global Count Rates
    Source only 206,927.681 413,855.363
    Background (sky+dark) 28,380.712 56,761.42
Background per unit area
    Sky Background (arcsec-2) 0.048 0.096
    Dark Current (arcsec-2) 10.800 21.600
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 6877.68 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: Pickles Models G0V 5807.64K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 5.67 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 28.1