ETC Request ID: STIS.sp.1152535
Requested Signal/Noise Ratio = 10.000 at wavelength 2800.00 Å (per resolution element)
gives: Time = 1,580.8707 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 | 0.040 | 126.33 | 11.24 |
| Background | 0.011 | 33.27 | 5.77 |
| Sky | 2.270e-05 | 0.07 | 0.27 |
| Dark Current | 0.011 | 33.20 | 5.76 |
| Total in selected region | 0.050 | 159.60 | 12.63 |
| Brightest Pixel (single exposure) (at 2798.40 Å) | 0.027 | 42.03 | |
| Count rate entire detector | 1,593.358 | ||
| Buffer Time (sec) | 1,255.21 | ||
| 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 | 3.089 | 4,882.852 | |
| Background (sky+dark) | 1,590.269 | 2,514,009.60 | |
| Encircled energy fraction | 0.87 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | |
| Grating: | [G230L] R ~ 500 |
| Aperture: | 52X2 |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: muscles_M5.csv |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to abmag = 22.71 in filter Galex/NUV |
| 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
