ETC Request ID: STIS.sp.1368378
Requested Signal/Noise Ratio = 10.000 at wavelength 2376.00 Å (per resolution element)
gives: Time = 3,884,722.9730 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 | 4.310e-04 | 3,348.51 | 57.87 |
| Background | 0.014 | 108,776.86 | 329.81 |
| Sky | 5.948e-07 | 4.62 | 2.15 |
| Dark Current | 0.014 | 108,772.24 | 329.81 |
| Total in selected region | 0.014 | 112,125.38 | 334.85 |
| Brightest Pixel (single exposure) (at 2196.80 Å) | 0.003 | 10,264.71 | |
| Count rate entire detector | 2,099.494 | ||
| Buffer Time (sec) | 952.61 | ||
| 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 | 0.624 | 2,424,722.698 | |
| Background (sky+dark) | 2,098.870 | 8,153,528,525.01 | |
| Encircled energy fraction | 0.85 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | |
| Grating: | [G230L] R ~ 500 |
| Aperture: | 52X0.2 |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: ETC_2M1237_15870-Burgasser02-Liebert07-Saur-min.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 27.2
