ETC Request ID: STIS.ta.1011330

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.4720 seconds

gives: Time to Saturation (for a single exposure) = 109.70 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 4,381.816 2,068.22 45.48
    Background 0.163 0.08 0.28
        Sky 0.001 5.16e-04 0.02
        Dark Current 0.162 0.08 0.28
    Read Out 24.60
Total in selected region 4,381.979 2,068.30 51.71
Brightest Pixel (single exposure) 1,093.859 516.30
Global Count Rates
    Source only 8,763.631 4,136.438
    Background (sky+dark) 18,944.019 8,941.59
Background per unit area
    Sky Background (arcsec-2) 0.049 0.023
    Dark Current (arcsec-2) 7.200 3.398
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 0.12
Effective Wavelength 8894.73 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: Black body at 3850.0K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 9.585 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2