ETC Request ID: STIS.sp.1299115
Requested Signal/Noise Ratio = 15.000 at wavelength 2516.70 Å (per resolution element)
gives: Time = 1,124.8741 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 | 0.115 | 258.79 | 16.09 |
| Background | 0.014 | 31.50 | 5.61 |
| Sky | 4.794e-10 | 1.08e-06 | 1.04e-03 |
| Dark Current | 0.014 | 31.50 | 5.61 |
| Total in selected region | 0.129 | 290.28 | 17.25 |
| Brightest Pixel (single exposure) (at 2797.43 Å) | 1.579 | 1,776.00 | |
| Count rate entire detector | 4,909.081 | ||
| Buffer Time (sec) | 407.41 | ||
| 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. | |||
|
|
|||
| Global Count Rates | |||
| Source only | 2,286.121 | 2,571,598.264 | |
| Background (sky+dark) | 2,097.152 | 2,359,032.27 | |
| Encircled energy fraction | 0.93 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | 2707 |
| Grating: | [E230M] R ~ 30000 |
| Aperture: | 0.1X0.03 |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: o4de05080.dat |
| 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 26.2
