ETC Request ID: STIS.ta.823551

Requested Signal/Noise Ratio = 40.000

gives: Time = 6.1196 seconds

gives: Time to Saturation (for a single exposure) = 28,741.15 seconds


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Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 21 x 21 pixels)
    Source 1,305.708 7,990.39 89.39
    Background 8.379 51.28 7.16
        Sky 4.385e-04 2.68e-03 0.05
        Dark Current 8.379 51.28 7.16
    Read Out 178.50
Total in selected region 1,314.088 8,041.66 199.76
Brightest Pixel (single exposure) 4.175 25.55
Global Count Rates
    Source only 1,305.708 7,990.386
    Background (sky+dark) 19,923.193 121,921.58
Background per unit area
    Sky Background (arcsec-2) 3.978e-04 0.002
    Dark Current (arcsec-2) 7.600 46.509
Extraction region
box of 21 x 21 pixels
    Effective Sky Area (pixels) 441.00
Effective Wavelength 7234.04 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F25ND5
Gain: 4.0
# Frames: 1
Binning: 1
Dark:


Target: [extended source]
Source diameter (arcsec): 1.0
Spectrum: Kurucz Models G2V 5860 4.4
Extinction E(B-V): None
Normalization: Renormalized to abmag = 5.5 in filter Sloan/R
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 24.2