ETC Request ID: STIS.sp.1236438
Exposure time (seconds) = 2,526.0000 at wavelength 2800.00 Å
gives: SNR = 75.0509 (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 7 pix) | (2 pix resel x 7 pix) | |
| Source | 1.125 | 5,685.20 | 75.40 |
| Background | 0.011 | 53.05 | 7.28 |
| Sky | 9.955e-07 | 5.03e-03 | 0.07 |
| Dark Current | 0.011 | 53.05 | 7.28 |
| Total in selected region | 1.136 | 5,738.25 | 75.75 |
| Brightest Pixel (single exposure) (at 2851.20 Å) | 1.697 | 4,287.88 | |
| Count rate entire detector | 2,499.463 | ||
| Buffer Time (sec) | 800.17 | ||
| 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 | 924.878 | 2,336,242.598 | |
| Background (sky+dark) | 1,574.585 | 3,977,401.70 | |
| Encircled energy fraction | 0.87 | ||
| Instrument name: | STIS |
| Mode: | spectroscopic |
| Detector: | NUVMAMA |
| Central Wavelength: | |
| Grating: | [G230L] R ~ 500 |
| Aperture: | 52X0.2 |
| Target: [point source] | |
| Spectrum: | Non-stellar Objects Type 2 Seyfert Galaxy NGC1068 [1000.0, 11000.0 Å] |
| Extinction E(B-V): | Milky Way Diffuse (Rv=3.1) = 0.087 applied before normalization |
| Normalization: | Flux 1e-14 flam at 2800.0 Å |
| Redshift: | z=0.019 |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
Table of Source and Noise Counts per Pixel
These results were computed using: ETC version 26.1
