ETC Request ID: STIS.ta.1032677
Requested Signal/Noise Ratio = 40.000
gives: Time = 0.3355 seconds
gives: Time to Saturation (for a single exposure) = 50.68 seconds
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box of 3 x 3 pixels) | |||
| Source | 6,164.770 | 2,068.30 | 45.48 |
| Background | 0.597 | 0.20 | 0.45 |
| Sky | 0.435 | 0.15 | 0.38 |
| Dark Current | 0.162 | 0.05 | 0.23 |
| Read Out | 24.60 | ||
| Total in selected region | 6,165.367 | 2,068.50 | 51.71 |
| Brightest Pixel (single exposure) | 2,367.586 | 794.33 | |
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| Global Count Rates | |||
| Source only | 12,329.540 | 4,136.593 | |
| Background (sky+dark) | 46,585.728 | 15,629.64 | |
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| Background per unit area | |||
| Sky Background (arcsec-2) | 19.330 | 6.485 | |
| Dark Current (arcsec-2) | 7.200 | 2.416 | |
| 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 | 0.19 | ||
| Effective Wavelength | 7110.55 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: | Pickles Models F2V 6776.42K |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to abmag = 15.2 in filter Sloan/G |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
These results were computed using: ETC version 25.2
