ETC Request ID: STIS.sp.1302728
Exposure time (seconds) = 2,810.0000 at wavelength 1216.00 Å
gives: SNR = 36.8559 (per resolution element)
Table of Source and Noise Counts per Pixel
| Detailed Information | Count rate | Total counts | Associated noise |
| (counts/s) | (counts) | (counts) | |
| Counts (box 7 pixels high) | (1 pix x 7 pix) | (2 pix resel x 7 pix) | |
| Source | 0.348 | 1,953.50 | 44.20 |
| Background | 0.001 | 5.90 | 2.43 |
| Sky | 8.094e-14 | 4.55e-10 | 2.13e-05 |
| Dark Current | 0.001 | 5.90 | 2.43 |
| Total in selected region | 0.349 | 1,959.40 | 53.00 |
| Brightest Pixel (single exposure) (at 1216.00 Å) | 0.118 | 332.41 | |
| Count rate entire detector | 173.036 | ||
| Buffer Time (sec) | 11,558.28 | ||
| For APT purposes, the recommended buffer time should be 4/5 of the buffer time calculated above. Please refer to the STIS Instrument Handbook for more details. | |||
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| Global Count Rates | |||
| Source only | 9.408 | 26,437.253 | |
| Background (sky+dark) | 157.418 | 442,345.54 | |
| Encircled energy fraction | 0.88 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | FUVMAMA |
| Central Wavelength: | 1425 |
| Grating: | [E140M] R ~ 45800 |
| Aperture: | 0.2X0.2 |
| Glow region: | low |
| Target: [point source] | |
| Spectrum: | Bruzual Synthetic Stellar Spectra M6 V |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 16.706 in filter Johnson/U |
| Redshift: | None |
| Emission Lines: | |
| Line at | Center 1216.0 Å FWHM 0.3 Å Flux 1.9e-12 Fλ |
| Selected background: | |
| Sky Background: | |
| Level: |
Table of Source and Noise Counts per Pixel
These results were computed using: ETC version 26.2
