ETC Request ID: STIS.sp.1036887
Exposure time (seconds) = 900.0000 at wavelength 2707.00 Å
gives: SNR = 17.4934 (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 | 0.184 | 330.61 | 18.18 |
| Background | 0.011 | 18.90 | 4.35 |
| Sky | 6.383e-11 | 1.15e-07 | 3.39e-04 |
| Dark Current | 0.011 | 18.90 | 4.35 |
| Total in selected region | 0.194 | 349.51 | 18.90 |
| Brightest Pixel (single exposure) (at 2681.99 Å) | 0.091 | 81.69 | |
| Count rate entire detector | 5,001.163 | ||
| Buffer Time (sec) | 399.91 | ||
| 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 | 2,787.229 | 2,508,505.786 | |
| Background (sky+dark) | 1,572.864 | 1,415,577.60 | |
| Encircled energy fraction | 0.93 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | 2707 |
| Grating: | [E230M] R ~ 30000 |
| Aperture: | 0.2X0.05ND |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: modelfluxsm-td1.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 25.2
