ETC Request ID: STIS.sp.203831
Exposure time (seconds) = 50.0000 at wavelength 5700.00 Å
gives: SNR = 112.8632 (per resolution element)
gives: Time to Saturation (for a single exposure) = 220.88 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 | 135.728 | 13,572.82 | 116.50 |
| Background | 0.113 | 11.33 | 3.37 |
| Sky | 5.552e-04 | 0.06 | 0.24 |
| Dark Current | 0.113 | 11.27 | 3.36 |
| Read Out | 29.63 | ||
| Total in selected region | 135.841 | 13,584.14 | 120.26 |
| Brightest Pixel (single exposure) (at 4025.90 Å) | 149.402 | 3,735.06 | |
|
|
|||
| Global Count Rates | |||
| Source only | 288,344.771 | 14,417,238.573 | |
| Background (sky+dark) | 17,700.039 | 885,001.96 | |
| Encircled energy fraction | 0.93 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | CCD |
| Central Wavelength: | |
| Grating: | [G430L] R ~ 500 |
| 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
