ETC Request ID: STIS.ta.1367857
Requested Signal/Noise Ratio = 40.000
gives: Time = 0.2117 seconds
gives: Time to Saturation (for a single exposure) = 30.28 seconds
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box of 3 x 3 pixels) | |||
| Source | 9,858.995 | 2,086.97 | 45.68 |
| Background | 0.666 | 0.14 | 0.38 |
| Sky | 0.432 | 0.09 | 0.30 |
| Dark Current | 0.234 | 0.05 | 0.22 |
| Read Out | 25.20 | ||
| Total in selected region | 9,859.661 | 2,087.11 | 52.17 |
| Brightest Pixel (single exposure) | 3,963.622 | 839.03 | |
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| Global Count Rates | |||
| Source only | 19,717.989 | 4,173.938 | |
| Background (sky+dark) | 54,817.750 | 11,603.92 | |
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| Background per unit area | |||
| Sky Background (arcsec-2) | 19.221 | 4.069 | |
| Dark Current (arcsec-2) | 10.400 | 2.201 | |
| 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 | 6860.78 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: J1825-fit_newlam2_kurucz_Mg_O_bin.dat |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to abmag = 14.6 in filter Galex/NUV |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
These results were computed using: ETC version 27.2
