ETC Request ID: STIS.ta.1304859

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.1702 seconds

gives: Time to Saturation (for a single exposure) = 32.35 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 12,263.236 2,086.95 45.68
    Background 0.659 0.11 0.33
        Sky 0.434 0.07 0.27
        Dark Current 0.225 0.04 0.20
    Read Out 25.20
Total in selected region 12,263.896 2,087.06 52.17
Brightest Pixel (single exposure) 3,709.103 631.21
Global Count Rates
    Source only 24,526.473 4,173.902
    Background (sky+dark) 53,877.858 9,168.91
Background per unit area
    Sky Background (arcsec-2) 19.296 3.284
    Dark Current (arcsec-2) 10.000 1.702
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 = 16.09 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 26.2