ETC Request ID: STIS.ta.1006132

Requested Signal/Noise Ratio = 40.000

gives: Time = 0.3105 seconds

gives: Time to Saturation (for a single exposure) = 55.15 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 6,659.826 2,068.20 45.48
    Background 0.164 0.05 0.23
        Sky 0.002 4.87e-04 0.02
        Dark Current 0.162 0.05 0.22
    Read Out 24.60
Total in selected region 6,659.990 2,068.25 51.71
Brightest Pixel (single exposure) 2,175.700 675.66
Global Count Rates
    Source only 13,319.653 4,136.405
    Background (sky+dark) 18,917.910 5,874.94
Background per unit area
    Sky Background (arcsec-2) 0.070 0.022
    Dark Current (arcsec-2) 7.200 2.236
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 0.16
Effective Wavelength 7896.12 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F25ND3
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