ETC Request ID: STIS.ta.827116
Exposure time (seconds) = 0.8000
gives: SNR = 380.6981
gives: Time to Saturation (for a single exposure) = 2.30 seconds
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box of 32 x 32 pixels) | |||
| Source | 248,578.621 | 198,862.90 | 445.94 |
| Background | 21.269 | 17.02 | 4.12 |
| Sky | 1.813 | 1.45 | 1.20 |
| Dark Current | 19.456 | 15.56 | 3.95 |
| Read Out | 272.00 | ||
| Total in selected region | 248,599.890 | 198,879.91 | 522.36 |
| Brightest Pixel (single exposure) | 52,095.639 | 41,676.51 | |
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| Global Count Rates | |||
| Source only | 269,261.705 | 215,409.364 | |
| Background (sky+dark) | 19,980.965 | 15,984.77 | |
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| Background per unit area | |||
| Sky Background (arcsec-2) | 33.330 | 26.664 | |
| Dark Current (arcsec-2) | 7.600 | 6.080 | |
| 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 | 7070.12 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: | Castelli-Kurucz Models M0V 3750 4.5 |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 11.9 in filter Johnson/V |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Earth Shine: | Average |
| Zodiacal Light: | Average |
| Air Glow: | Average |
These results were computed using: ETC version 24.2
