ETC Request ID: STIS.sp.1410383
Exposure time (seconds) = 2,253.0000 at wavelength 1215.30 Å
gives: SNR = 6.7810 (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 | 0.014 | 61.34 | 7.83 |
| Background | 0.001 | 4.73 | 2.18 |
| Sky | 3.993e-14 | 1.80e-10 | 1.34e-05 |
| Dark Current | 0.001 | 4.73 | 2.18 |
| Total in selected region | 0.015 | 66.07 | 9.05 |
| Brightest Pixel (single exposure) (at 1215.70 Å) | 0.007 | 15.65 | |
| Count rate entire detector | 245.325 | ||
| Buffer Time (sec) | 8,152.46 | ||
| 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 | 49.649 | 111,858.638 | |
| Background (sky+dark) | 157.446 | 354,726.91 | |
| Encircled energy fraction | 0.88 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | FUVMAMA |
| Central Wavelength: | 1271 |
| Grating: | [E140H] R ~ 114000 |
| Aperture: | 0.2X0.2 |
| Glow region: | low |
| Target: [point source] | |
| Spectrum: | Pickles Models G0V 5807.64K |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 5.67 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 28.1
