Table 1
Effective integration times (second column), and RMN with respect to the physical and astrometric attitude (fourth and fifth columns); for a CCD including the effect of TDI-gate activations.
| Gate | Integration | G | RMN wrt | RMN wrt |
| number | time Δt | (mag) | physical | astrometric |
| (s) | attitude | attitude | ||
| (μas) | (μas) | |||
|
|
||||
| 1 | 2.0 × 10-3 | – | – | – |
| 2 | 3.9 × 10-3 | – | – | – |
| 3 | 7.9 × 10-3 | – | – | – |
| 4 | 1.6 × 10-2 | −∞–8.84 | – | – |
| 5 | 3.1 × 10-2 | – | – | – |
| 6 | 6.3 × 10-2 | – | – | – |
| 7 | 0.13 | – | – | – |
| 8 | 0.25 | 8.84–9.59 | 0.063 | 12.6 |
| 9 | 0.50 | 9.59–10.34 | 0.30 | 12.4 |
| 10 | 1.01 | 10.34–11.10 | 1.05 | 11.8 |
| 11 | 2.01 | 11.10–11.47 | 3.6 | 9.4 |
| 12 | 2.85 | 11.47–11.95 | 6.2 | 6.7 |
| Full CCD | 4.42 | 11.95–∞ | 12.7 | – |
Notes. The three first columns are taken from the Gaia parameter database (Perryman et al. 2008). RMN with respect to the physical attitude is explained in Sect. 4.1, and with respect to the astrometric attitude is Sect. 4.2.
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