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Table 2
Description of the WFI 2.2 m telescope data sets.
| Filters | Exposure time | Seeing | Airmass |
| (s) | (arcsec) | ||
|
|
|||
| April 06, 2000 (first epoch) | |||
| B | 2 × 240 | 1.5 | ~1.1 |
| V | 2 × 240 | 1.4 | ~1.1 |
| I | 2 × 240 | 1.3 | ~1.1 |
| June 05, 2003 (second epoch) | |||
| V | 4 × 120 | 1.0 | ~1.2 |
Notes. The first-epoch data were taken on April 06, 2000, and the second-epoch data were observed on June 05, 2003.
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