ETC Request ID: STIS.ta.1012308

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.1459 seconds

gives: Time to Saturation (for a single exposure) = 6.82 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 77,649.846 11,326.65 106.43
    Background 18.433 2.69 1.64
        Sky 0.001 2.06e-04 0.01
        Dark Current 18.432 2.69 1.64
    Read Out 262.40
Total in selected region 77,668.280 11,329.34 283.17
Brightest Pixel (single exposure) 17,583.075 2,564.81
Global Count Rates
    Source only 82,501.065 12,034.287
    Background (sky+dark) 18,874.369 2,753.17
Background per unit area
    Sky Background (arcsec-2) 0.141 0.021
    Dark Current (arcsec-2) 7.200 1.050
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 6524.30 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 3700.0K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 8.08 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2