ETC Request ID: STIS.sp.1366521
Exposure time (seconds) = 10,520.0000 at wavelength 1500.00 Å
gives: SNR = 4.3564 (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 | 0.002 | 32.06 | 5.66 |
| Background | 0.001 | 22.09 | 4.70 |
| Sky | 6.274e-12 | 1.32e-07 | 3.63e-04 |
| Dark Current | 0.001 | 22.09 | 4.70 |
| Total in selected region | 0.003 | 54.15 | 7.36 |
| Brightest Pixel (single exposure) (at 1217.70 Å) | 0.011 | 120.46 | |
| Count rate entire detector | 272.010 | ||
| Buffer Time (sec) | 7,352.67 | ||
| 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 | 1.863 | 19,594.170 | |
| Background (sky+dark) | 270.147 | 2,841,951.06 | |
| Encircled energy fraction | 0.84 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | FUVMAMA |
| Central Wavelength: | |
| Grating: | [G140L] R ~ 1000 |
| Aperture: | 52X0.2 |
| Glow region: | low |
| Target: [point source] | |
| Spectrum: | Black body at 20000.0K |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to abmag = 21.4 in filter WFC3/UVIS1/F200LP |
| Redshift: | z=0.073 |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
Table of Source and Noise Counts per Pixel
These results were computed using: ETC version 27.2
