ETC Request ID: STIS.ta.1107046

Requested Signal/Noise Ratio = 40.000

gives: Time = 26.9403 seconds

gives: Time to Saturation (for a single exposure) = 2,757.02 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 3 x 3 pixels)
    Source 76.871 2,070.94 45.51
    Background 0.163 4.39 2.10
        Sky 0.001 0.03 0.17
        Dark Current 0.162 4.36 2.09
    Read Out 24.60
Total in selected region 77.034 2,075.33 51.77
Brightest Pixel (single exposure) 43.525 1,172.58
Global Count Rates
    Source only 153.743 4,141.877
    Background (sky+dark) 18,941.131 510,280.33
Background per unit area
    Sky Background (arcsec-2) 0.047 1.255
    Dark Current (arcsec-2) 7.200 193.970
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 0.28
Effective Wavelength 3740.57 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ
Aperture: F28X50OII
Gain: 4.0
# Frames: 1
Binning: 1
Dark: medium


Target: [point source]
Spectrum: User uploaded spectrum: muscles_M3.5.csv
Extinction E(B-V): None
Normalization: Renormalized to abmag = 21.24 in filter Galex/NUV
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 25.2