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CFHTLS Wide : W1 pointing description
- Each image is one CFHTLS-Wide pointing, with 1 deg. x 1 deg.
- Assumed: the camera scientific FOV is 1 deg. x 1 deg., as expected from the
optical+megacam design
- Pointings separated by 57' in RA (3' overlap in RA) and
56' in DEC (4' overlap in : larger than in RA to take into
account the 62" gaps between CCD rows during the shift sequences for
each pointing exposure).
- Areas are referred
as W1: (n,m), (n=-4,+4; m=-4,+3) are the RA and DEC offsets
respectively, with respect to the W center position adopted by the
CFHTLS working group (ie: the (0,0) position in the following table).
The total FOV is 9 deg. in RA and 8 deg. in DEC
CFHTLS: W1 field, 72 pointings
| W1: (+4,*) |
W1: (+3,*) | W1: (+2,*) |
W1: (+1,*) | W1: (0,*) | W1: (-1,*) | W1: (-2,*) | W1: (-3,*) |
W1: (-4,*) | - |
| W1: (*,3) |  |  |  |  |  |  |  |  |  | W1: (*,+3) |
| W1: (*,+2) |  |  |  |  |  |  |  |  |  | W1: (*,+2) |
| W1: (*,+1) |  |  |  |  |  |  |  |  |  | W1: (*,+1) |
| W1: (*,0) |  |  |  |  |  |  |  |  |  | W1: (*,0) |
| W1: (*,-1) |  |  |  |  |  |  |  |  |  | W1: (*,-1) |
| W1: (*,-2) |  |  |  |  |  |  |  |  |  | W1: (*,-2) |
| W1: (*,-3) |  |  |  |  |  |  |  |  |  | W1: (*,-3) |
| W1: (*,-4) | |  |  |  |  |  |  |  |  | W1: (*,-4) |
| W1: (+4,*) |
W1: (+3,*) | W1: (+2,*) |
W1: (+1,*) | W1: (0,*) | W1: (-1,*) | W1: (-2,*) | W1: (-3,*) |
W1: (-4,*) | - |
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