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Table 2
Description of the WFI/2.2 m data sets.
| Filters | Exposure time | Seeing | Airmass |
| (in seconds) | |||
|
|
|||
| 1999 May–July | |||
| B | 2 × 240 | 1 0 |
1.0 |
| V/89 (First epoch) | 4 × 200 | 11 |
1.1 |
| I/lwp | 7 × 150; 1 × 200 | 10 |
1.1 |
| 2006 August | |||
| U/50 − ESO 877 | 6 × 300 | 11 |
1.0 |
| V/89 (second epoch) | 6 × 40 | 10 |
1.0 |
Notes. The first epoch data were observed in May and July, 1999, while second epoch data were observed in August, 2006.
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