ETC Request ID: STIS.sp.1383726
Exposure time (seconds) = 510.0000 at wavelength 2376.00 Å
gives: SNR = 33.4760 (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 | 1.112 | 1,134.75 | 33.69 |
| Background | 0.014 | 14.28 | 3.78 |
| Sky | 5.948e-07 | 6.07e-04 | 0.02 |
| Dark Current | 0.014 | 14.28 | 3.78 |
| Total in selected region | 1.126 | 1,149.03 | 33.90 |
| Brightest Pixel (single exposure) (at 2544.00 Å) | 0.475 | 242.47 | |
| Count rate entire detector | 2,973.643 | ||
| Buffer Time (sec) | 672.58 | ||
| 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 | 874.773 | 446,134.178 | |
| Background (sky+dark) | 2,098.870 | 1,070,423.70 | |
| 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: | Black body at 22000.0K |
| Extinction E(B-V): | Milky Way Diffuse (Rv=3.1) = 0.094 applied before normalization |
| Normalization: | Renormalized to abmag = 16.0 in filter Sloan/R |
| Redshift: | z=0.015 |
| 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
