ETC Request ID: STIS.sp.1003610
Exposure time (seconds) = 2,300.0000 at wavelength 3050.00 Å
gives: SNR = 5.9462 (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 | 62.63 | 7.91 |
| Background | 0.011 | 48.30 | 6.95 |
| Sky | 1.440e-07 | 6.62e-04 | 0.03 |
| Dark Current | 0.011 | 48.30 | 6.95 |
| Total in selected region | 0.024 | 110.93 | 10.53 |
| Brightest Pixel (single exposure) (at 3037.99 Å) | 0.008 | 18.69 | |
| Count rate entire detector | 1,587.293 | ||
| Buffer Time (sec) | 1,260.01 | ||
| 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 | 14.412 | 33,147.226 | |
| Background (sky+dark) | 1,572.881 | 3,617,627.27 | |
| Encircled energy fraction | 0.87 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | 3055 |
| Grating: | [G230M] R ~ 10000 |
| Aperture: | 52X0.2 |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: aatau_etc_062812.txt |
| 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
