ETC Request ID: STIS.ta.826450

Exposure time (seconds) = 1.0000

gives: SNR = 340.5227

gives: Time to Saturation (for a single exposure) = 3.48 seconds


Plots

Detailed Information Count rate Total counts Associated noise
(e-/s) (e-) (e-)
Counts (box of 32 x 32 pixels)
    Source 167,260.832 167,260.83 408.98
    Background 21.269 21.27 4.61
        Sky 1.813 1.81 1.35
        Dark Current 19.456 19.46 4.41
    Read Out 272.00
Total in selected region 167,282.101 167,282.10 491.19
Brightest Pixel (single exposure) 34,439.261 34,439.26
Global Count Rates
    Source only 181,932.842 181,932.842
    Background (sky+dark) 19,980.965 19,980.97
Background per unit area
    Sky Background (arcsec-2) 33.330 33.330
    Dark Current (arcsec-2) 7.600 7.600
Extraction region
box of 32 x 32 pixels
    Effective Sky Area (pixels) 21.76
    Fraction of flux 0.92
    Fraction of flux in brightest pixel 0.19
Effective Wavelength 7186.22 Å

Instrument name: STIS
Mode: Target Acquisition
Detector: CCD
Acquisition Mode: ACQ/PEAK
Aperture: 52X0.05
Gain: 4.0
# Frames: 1
Binning: 1
Dark:


Target: [point source]
Spectrum: Kurucz Models M2V 3500 4.6
Extinction E(B-V): None
Normalization: Renormalized to vegamag = 12.33 in filter Johnson/V
Redshift: None
Emission Lines: None


Selected background:
  Sky Background:
    Level:

Plots

These results were computed using: ETC version 24.2