ETC Request ID: STIS.sp.1299112
Requested Signal/Noise Ratio = 20.000 at wavelength 2516.70 Å (per resolution element)
gives: Time = 392.0578 seconds
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 | 0.538 | 421.79 | 20.54 |
| Background | 0.014 | 10.98 | 3.31 |
| Sky | 4.794e-10 | 3.76e-07 | 6.13e-04 |
| Dark Current | 0.014 | 10.98 | 3.31 |
| Total in selected region | 0.552 | 432.77 | 21.09 |
| Brightest Pixel (single exposure) (at 2802.81 Å) | 4.332 | 1,698.27 | |
| Count rate entire detector | 13,443.558 | ||
| Buffer Time (sec) | 148.77 | ||
| 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 | 9,224.719 | 3,616,623.494 | |
| Background (sky+dark) | 2,097.152 | 822,204.97 | |
| Encircled energy fraction | 0.93 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | 2707 |
| Grating: | [E230M] R ~ 30000 |
| Aperture: | 0.1X0.03 |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: o4de05040.dat |
| 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 26.2
