ETC Request ID: STIS.ta.1449652
Exposure time (seconds) = 0.1000
gives: SNR = 129.2261
gives: Time to Saturation (for a single exposure) = 1.74 seconds
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box of 3 x 3 pixels) | |||
| Source | 173,549.358 | 17,354.94 | 131.74 |
| Background | 0.675 | 0.07 | 0.26 |
| Sky | 0.432 | 0.04 | 0.21 |
| Dark Current | 0.243 | 0.02 | 0.16 |
| Read Out | 26.10 | ||
| Total in selected region | 173,550.033 | 17,355.00 | 134.30 |
| Brightest Pixel (single exposure) | 68,806.972 | 6,880.70 | |
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| Global Count Rates | |||
| Source only | 347,098.715 | 34,709.872 | |
| Background (sky+dark) | 55,864.519 | 5,586.45 | |
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| Background per unit area | |||
| Sky Background (arcsec-2) | 19.219 | 1.922 | |
| Dark Current (arcsec-2) | 10.800 | 1.080 | |
| 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 | 0.20 | ||
| Effective Wavelength | 6937.93 Å | ||
| Instrument name: | STIS |
| Mode: | Target Acquisition |
| Detector: | CCD |
| Acquisition Mode: | ACQ |
| Aperture: | F28X50LP |
| Gain: | 4.0 |
| # Frames: | 1 |
| Binning: | 1 |
| Dark: | medium |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: SK-68D8_adopted_sed.fits |
| Extinction E(B-V): | None |
| Normalization: | None |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
These results were computed using: ETC version 28.2
