ETC Request ID: STIS.ta.994017

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.5184 seconds

gives: Time to Saturation (for a single exposure) = 234.99 seconds


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Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 3,989.330 2,068.22 45.48
    Background 0.163 0.08 0.29
        Sky 0.001 5.54e-04 0.02
        Dark Current 0.162 0.08 0.29
    Read Out 24.60
Total in selected region 3,989.493 2,068.31 51.71
Brightest Pixel (single exposure) 510.652 264.74
Global Count Rates
    Source only 7,978.661 4,136.447
    Background (sky+dark) 18,942.439 9,820.50
Background per unit area
    Sky Background (arcsec-2) 0.047 0.025
    Dark Current (arcsec-2) 7.200 3.733
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 0.06
Effective Wavelength 10602.98 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: Bruzual Synthetic Stellar Spectra M6 V
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 11.13 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.1.1