ETC Request ID: STIS.sp.826569
Exposure time (seconds) = 200.0000 at wavelength 1400.00 Å
gives: SNR = 20.9268 (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 pix) | (2.0 pix resel x pix) | |
| Source | 1.096 | 438.35 | 20.94 |
| Background | 0.001 | 0.42 | 0.65 |
| Sky | 2.418e-12 | 9.67e-10 | 3.11e-05 |
| Dark Current | 0.001 | 0.42 | 0.65 |
| Total in selected region | 1.097 | 438.77 | 20.95 |
| Brightest Pixel (single exposure) (at 1279.50 Å) | 0.839 | 167.81 | |
| Count rate entire detector | 1,499.555 | ||
| Buffer Time (sec) | 1,333.73 | ||
| 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 | 1,227.561 | 245,512.136 | |
| Background (sky+dark) | 271.994 | 54,398.78 | |
| Encircled energy fraction | 0.82 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | FUVMAMA |
| Central Wavelength: | |
| Grating: | [G140L] R ~ 1000 |
| Aperture: | 52X0.2 |
| Glow region: | low |
| Target: [point source] | |
| Spectrum: | Pickles Models B1V 22387.2K |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 16.0 in filter Johnson/V |
| 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 24.2
