ETC Request ID: STIS.sp.1373631
Exposure time (seconds) = 2,820.0000 at wavelength 1216.00 Å
gives: SNR = 16.8685 (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 | 0.073 | 412.44 | 20.31 |
| Background | 0.001 | 5.92 | 2.43 |
| Sky | 8.083e-14 | 4.56e-10 | 2.14e-05 |
| Dark Current | 0.001 | 5.92 | 2.43 |
| Total in selected region | 0.074 | 418.36 | 24.45 |
| Brightest Pixel (single exposure) (at 1215.99 Å) | 0.025 | 70.61 | |
| Count rate entire detector | 167.279 | ||
| Buffer Time (sec) | 11,956.08 | ||
| 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 | 5.940 | 16,751.276 | |
| Background (sky+dark) | 157.418 | 443,919.22 | |
| 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 = 15.91 in filter Johnson/U |
| Redshift: | None |
| Emission Lines: | |
| Line at | Center 1216.0 Å FWHM 0.9 Å Flux 1.2e-12 Fλ |
| Selected background: | |
| Sky Background: | |
| Level: |
Table of Source and Noise Counts per Pixel
These results were computed using: ETC version 27.2
