The detector is a 2048x2048 pixel SITe (formerly Tektronix) thinned
CCD with good UV response.
The characteristics of this CCD are given in Table 3.
Note; The new ArcVIEW based camera GUI enables sub-rastering the array and any imaginable binning combination.
| Table 3 COSMIC CCD Characteristics |
|
| Pixel size | 24 um |
| Array size | 2048x2048 pixels |
| Peak QE ( nm) | ~88% |
| Read Noise | 12 e- |
| Gain | 3.1 e- / DN |
| Time to Readout | 112 seconds (no binning) |
| 29 seconds (4x4 binning) | |
| Orientation, imaging (base PA=180 ) With Spectrograph Tower |
N down, E left (display ccd001 1) N up, E left (display ccd001[*,-*] 1) |
| Orientation, spectroscopy (base PA=180) With Spectrograph Tower |
E left, blue down (display ccd001 1) E left, blue up (display ccd001[*,-*] 1) |
| Orientation, imaging (base PA=180 ) Direct Imaging |
N up, E right (display ccd001 1) |
| Overscan | pixels x = 2038:2048 |
| Dark current | unknown |
| Bias | bias~480 DN |
| Minimum t_exp (photometry) | 2 seconds |