ETC Request ID: STIS.ta.1039963

Exposure time (seconds) = 3.0000

gives: SNR = 289.2458

gives: Time to Saturation (for a single exposure) = 10.49 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 42,842.835 128,528.50 358.51
    Background 23.751 71.25 8.44
        Sky 5.319 15.96 3.99
        Dark Current 18.432 55.30 7.44
    Read Out 262.40
Total in selected region 42,866.586 128,599.76 444.36
Brightest Pixel (single exposure) 11,444.080 34,332.24
Global Count Rates
    Source only 45,188.053 135,564.158
    Background (sky+dark) 19,044.573 57,133.72
Background per unit area
    Sky Background (arcsec-2) 33.243 99.729
    Dark Current (arcsec-2) 7.200 21.600
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 64.00
    Fraction of flux 0.95
    Fraction of flux in brightest pixel 0.25
Effective Wavelength 4996.34 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: Empty
Extinction E(B-V): None
Normalization: None
Redshift: None
Emission Lines:
Line at Center 5008.24 Å    FWHM 8.0 Å   Flux 3e-11 Fλ
Line at Center 4960.295 Å    FWHM 8.0 Å   Flux 1e-11 Fλ


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2