ETC Request ID: STIS.ta.1006125

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.7021 seconds

gives: Time to Saturation (for a single exposure) = 34.06 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 16,133.082 11,327.43 106.43
    Background 18.433 12.94 3.60
        Sky 0.001 9.91e-04 0.03
        Dark Current 18.432 12.94 3.60
    Read Out 262.40
Total in selected region 16,151.515 11,340.37 283.19
Brightest Pixel (single exposure) 3,522.784 2,473.43
Global Count Rates
    Source only 17,301.291 12,147.655
    Background (sky+dark) 18,874.369 13,252.15
Background per unit area
    Sky Background (arcsec-2) 0.141 0.099
    Dark Current (arcsec-2) 7.200 5.055
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 0.20
Effective Wavelength 6788.53 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: Castelli-Kurucz Models M2V 3500 4.5
Extinction E(B-V): None
Normalization: Renormalized to abmag = 21.59 in filter Galex/NUV
Redshift: None
Emission Lines:
Line at Center 1215.67 Å    FWHM 0.5 Å   Flux 4.2561e-14 Fλ


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2