ETC Request ID: STIS.ta.1012422

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.4751 seconds

gives: Time to Saturation (for a single exposure) = 22.89 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 23,840.954 11,327.11 106.43
    Background 18.433 8.76 2.96
        Sky 0.001 6.71e-04 0.03
        Dark Current 18.432 8.76 2.96
    Read Out 262.40
Total in selected region 23,859.388 11,335.87 283.18
Brightest Pixel (single exposure) 5,241.817 2,490.45
Global Count Rates
    Source only 25,523.091 12,126.311
    Background (sky+dark) 18,874.369 8,967.43
Background per unit area
    Sky Background (arcsec-2) 0.141 0.067
    Dark Current (arcsec-2) 7.200 3.421
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 4.00
    Fraction of flux 0.93
    Fraction of flux in brightest pixel 0.21
Effective Wavelength 6739.59 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 3200.0K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 9.511 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2