ETC Request ID: STIS.sp.1372658
Exposure time (seconds) = 160.0000 at wavelength 2300.00 Å
gives: SNR = 4.9302 (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 2 pixels high) | (1 pix x 2 pix) | (2 pix resel x 2 pix) | |
| Source | 0.080 | 25.53 | 5.05 |
| Background | 0.004 | 1.28 | 1.13 |
| Sky | 1.718e-07 | 5.50e-05 | 7.41e-03 |
| Dark Current | 0.004 | 1.28 | 1.13 |
| Total in selected region | 0.084 | 26.81 | 5.18 |
| Brightest Pixel (single exposure) (at 2912.00 Å) | 0.267 | 42.64 | |
| Count rate entire detector | 6,180.207 | ||
| Buffer Time (sec) | 323.61 | ||
| 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 | 4,081.337 | 653,013.930 | |
| Background (sky+dark) | 2,098.870 | 335,819.20 | |
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | |
| Grating: | [G230L] R ~ 500 |
| Aperture: | 52X0.2 |
| Target: [extended source] | |
| Source diameter (arcsec): | 1.6 |
| Spectrum: | Kurucz Models G2V 5860 4.4 |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 8.8 in filter Johnson/V |
| 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
