ETC Request ID: STIS.sp.845012
Exposure time (seconds) = 1,400.0000 at wavelength 1608.00 Å
gives: SNR = 15.6057 (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 pix) | (2.0 pix resel x pix) | |
| Source | 0.094 | 263.71 | 16.24 |
| Background | 0.001 | 2.94 | 1.71 |
| Sky | 9.747e-14 | 2.73e-10 | 1.65e-05 |
| Dark Current | 0.001 | 2.94 | 1.71 |
| Total in selected region | 0.095 | 266.65 | 16.90 |
| Brightest Pixel (single exposure) (at 1478.00 Å) | 0.100 | 139.82 | |
| Count rate entire detector | 6,855.019 | ||
| Buffer Time (sec) | 291.76 | ||
| 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 | 4,683.772 | 6,557,280.518 | |
| Background (sky+dark) | 157.286 | 220,200.96 | |
| Encircled energy fraction | 0.94 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | FUVMAMA |
| Central Wavelength: | 1562 |
| Grating: | [E140H] R ~ 114000 |
| Aperture: | 0.2X0.09 |
| Glow region: | low |
| Target: [point source] | |
| Spectrum: | User uploaded spectrum: hd233622_iueSCALE+model.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 24.2
