ETC Request ID: STIS.ta.1011343

Requested Signal/Noise Ratio = 40.000

gives: Time = 1.1350 seconds

gives: Time to Saturation (for a single exposure) = 54.34 seconds


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Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 9,980.783 11,328.03 106.43
    Background 18.433 20.92 4.57
        Sky 0.001 1.60e-03 0.04
        Dark Current 18.432 20.92 4.57
    Read Out 262.40
Total in selected region 9,999.217 11,348.96 283.20
Brightest Pixel (single exposure) 2,208.414 2,506.52
Global Count Rates
    Source only 10,667.827 12,107.817
    Background (sky+dark) 18,874.369 21,422.12
Background per unit area
    Sky Background (arcsec-2) 0.141 0.160
    Dark Current (arcsec-2) 7.200 8.172
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 4.00
    Fraction of flux 0.94
    Fraction of flux in brightest pixel 0.21
Effective Wavelength 6694.04 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 0.2X0.05ND
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: Black body at 3300.0K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 10.42 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2