Table 3
NISP detector chain performance.
| Mosaic | Position SCA 18XXX | 11 | 12 | 13 | 14 | 21 | 22 | 23 | 24 | 31 | 32 | 33 | 34 | 41 | 42 | 43 | 44 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 453 | 272 | 632 | 267 | 268 | 285 | 548 | 452 | 280 | 284 | 278 | 269 | 458 | 249 | 221 | 628 | ||
| QE (%) | YE-band | 93 | 96 | 88 | 95 | 92 | 94 | 94 | 93 | 91 | 92 | 94 | 94 | 92 | 93 | 96 | 92 |
| JE-band | 95 | 97 | 95 | 96 | 93 | 96 | 95 | 95 | 93 | 94 | 95 | 95 | 96 | 94 | 98 | 95 | |
| HE-band | 96 | 98 | 95 | 97 | 94 | 96 | 96 | 95 | 93 | 94 | 95 | 96 | 95 | 94 | 99 | 95 | |
| Noise (e−) | Spectro | 8.2 | 9.0 | 7.8 | 9.2 | 8.2 | 8.9 | 8.3 | 8.4 | 8.1 | 7.9 | 8.0 | 8.7 | 7.7 | 7.9 | 8.1 | 8.7 |
| Photo | 6.0 | 6.2 | 5.9 | 6.4 | 6.3 | 6.7 | 6.4 | 6.4 | 5.9 | 5.8 | 5.6 | 6.4 | 5.7 | 5.6 | 6.1 | 6.1 | |
| Disconnected pixels (#) | 135 | 3223 | 589 | 252 | 313 | 2580 | 1512 | 146 | 1420 | 269 | 262 | 970 | 198 | 334 | 222 | 255 | |
Notes. Detector chain performance of the flight model NISP focal plane, for all 16 SCS, identified by their SCA number. ‘Position’ refers to position in the 4×4 array as defined in Fig. A.1, ‘QE’ is the quantum efficiency in the respective photometry passbands, with an absolute accuracy of 5% (Waczynski et al. 2016). ‘Noise’ is the read noise in the standard survey MACC modes for photometry and spectroscopy. ‘Disconnected pixels’ gives the number of pixels per detector that do not produce a signal due to a missing or faulty indium bump. If not specified then values given are medians over the array.
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