ETC Request ID: STIS.ta.1301512

Exposure time (seconds) = 27.0000

gives: SNR = 103.1223

gives: Time to Saturation (for a single exposure) = 951.02 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 416.325 11,240.78 106.02
    Background 0.227 6.12 2.47
        Sky 0.002 0.04 0.21
        Dark Current 0.225 6.08 2.46
    Read Out 25.20
Total in selected region 416.552 11,246.89 109.00
Brightest Pixel (single exposure) 126.180 3,406.86
Global Count Rates
    Source only 832.650 22,481.551
    Background (sky+dark) 26,257.865 708,962.35
Background per unit area
    Sky Background (arcsec-2) 0.070 1.878
    Dark Current (arcsec-2) 10.000 270.000
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 0.15
Effective Wavelength 8215.94 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: Bruzual Synthetic Stellar Spectra M6 V
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 13.507 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 26.2