ETC Request ID: STIS.ta.1288941

Requested Signal/Noise Ratio = 40.000

gives: Time = 1.8839 seconds

gives: Time to Saturation (for a single exposure) = 357.95 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 1,108.167 2,087.65 45.69
    Background 0.659 1.24 1.11
        Sky 0.434 0.82 0.90
        Dark Current 0.225 0.42 0.65
    Read Out 25.20
Total in selected region 1,108.826 2,088.90 52.19
Brightest Pixel (single exposure) 335.239 631.55
Global Count Rates
    Source only 2,216.333 4,175.306
    Background (sky+dark) 53,877.858 101,499.42
Background per unit area
    Sky Background (arcsec-2) 19.296 36.352
    Dark Current (arcsec-2) 10.000 18.839
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 0.15
Effective Wavelength 8223.63 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: User uploaded spectrum: muscles_M5.csv
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 18.7 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 26.1