ETC Request ID: STIS.sp.203828
Exposure time (seconds) = 120.0000 at wavelength 3308.00 Å
gives: SNR = 87.2767 (per resolution element)
gives: Time to Saturation (for a single exposure) = 2,072.42 seconds
Table of Source and Noise Counts per Pixel
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box 7 pixels high) | (1 pix x pix) | (2.0 pix resel x pix) | |
| Source | 35.144 | 8,434.65 | 91.84 |
| Background | 0.113 | 27.06 | 5.20 |
| Sky | 6.316e-05 | 0.02 | 0.12 |
| Dark Current | 0.113 | 27.05 | 5.20 |
| Read Out | 29.63 | ||
| Total in selected region | 35.257 | 8,461.72 | 96.64 |
| Brightest Pixel (single exposure) (at 3160.32 Å) | 15.923 | 955.41 | |
|
|
|||
| Global Count Rates | |||
| Source only | 41,095.337 | 4,931,440.438 | |
| Background (sky+dark) | 16,895.379 | 2,027,445.47 | |
| Encircled energy fraction | 0.94 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | CCD |
| Central Wavelength: | 3165 |
| Grating: | [G430M] R ~ 6000 |
| Aperture: | 52X2 |
| Gain: | 1.0 |
| # Frames: | 2 |
| Binning: | |
| Dark: |
| Target: [point source] | |
| Spectrum: | Standard HST Star Spectra AGK+81°266 (sdO, 11.94) |
| Extinction E(B-V): | None |
| Normalization: | None |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
Table of Source and Noise Counts per Pixel
These results were computed using: ETC version 19.2
