ETC Request ID: STIS.ta.1009896

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.7644 seconds

gives: Time to Saturation (for a single exposure) = 241.09 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 2,705.757 2,068.25 45.48
    Background 0.163 0.12 0.35
        Sky 0.001 8.36e-04 0.03
        Dark Current 0.162 0.12 0.35
    Read Out 24.60
Total in selected region 2,705.920 2,068.37 51.71
Brightest Pixel (single exposure) 497.747 380.47
Global Count Rates
    Source only 5,411.514 4,136.498
    Background (sky+dark) 18,944.019 14,480.59
Background per unit area
    Sky Background (arcsec-2) 0.049 0.037
    Dark Current (arcsec-2) 7.200 5.504
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 0.09
Effective Wavelength 9700.60 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 3300.0K
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 10.495 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2