ETC Request ID: STIS.ta.825423
Requested Signal/Noise Ratio = 40.000
gives: Time = 0.1375 seconds
gives: Time to Saturation (for a single exposure) = 25.65 seconds
| Detailed Information | Count rate | Total counts | Associated noise |
| (e-/s) | (e-) | (e-) | |
| Counts (box of 3 x 3 pixels) | |||
| Source | 15,247.453 | 2,096.36 | 45.79 |
| Background | 0.737 | 0.10 | 0.32 |
| Sky | 0.566 | 0.08 | 0.28 |
| Dark Current | 0.171 | 0.02 | 0.15 |
| Read Out | 25.50 | ||
| Total in selected region | 15,248.190 | 2,096.47 | 52.41 |
| Brightest Pixel (single exposure) | 4,678.004 | 643.18 | |
|
|
|||
| Global Count Rates | |||
| Source only | 30,494.905 | 4,192.730 | |
| Background (sky+dark) | 55,985.010 | 7,697.35 | |
|
|
|||
| Background per unit area | |||
| Sky Background (arcsec-2) | 25.155 | 3.459 | |
| Dark Current (arcsec-2) | 7.600 | 1.045 | |
| Extraction region | |||
| box of 3 x 3 pixels | |||
| Effective Sky Area (pixels) | 9.00 | ||
| Fraction of flux | 0.50 | ||
| Fraction of flux in brightest pixel | 0.15 | ||
| Effective Wavelength | 8164.86 Å | ||
| Instrument name: | STIS |
| Mode: | Target Acquisition |
| Detector: | CCD |
| Acquisition Mode: | ACQ |
| Aperture: | F28X50LP |
| Gain: | 4.0 |
| # Frames: | 1 |
| Binning: | 1 |
| Dark: |
| Target: [point source] | |
| Spectrum: | Pickles Models M4V 3111.72K |
| Extinction E(B-V): | None |
| Normalization: | Renormalized to vegamag = 15.881 in filter Johnson/V |
| Redshift: | None |
| Emission Lines: | None |
| Selected background: | |
| Sky Background: | |
| Level: |
These results were computed using: ETC version 24.2
