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Target declination and right ascension limits
The current target declination limit is -25º. Objects with a declination lower than that cannot be observed.
WASP sets limits to allowed target RA and Dec, and it will not validate your OB if your target coordinates lie outside the limits for that the trimester. See below the allowed RAs RA ranges for each trimester.
Allowed RA range - Trimester A1 |
2h (30º) → 20h (300º) Expanded range: |
Allowed RA range - Trimester A2 |
9h (135º) → 2h (30º) Expanded range: |
Allowed RA range - Trimester B1 |
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15h (225º) → 9h (135º) Expanded RA range: |
Allowed RA range - Trimester B2 |
20h (300º) → 16h (240º) Expanded RA range: |
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Please use this exposure time calculator for your signal-to-noise calculations: https://a.ing.iac.es/signalWEAVE/. There is more information, including a downloadable version, at /wiki/spaces/WEAV/pages/13239474WEAVE Exposure Time Calculator .
Instrument configuration
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For custom dither patterns, constraints on the dither step size are imposed by the WASP to ensure that the guide star remains within the guiding camera field of view. From the perspective of IFU users, careful consideration of the dithering options should be made. Below it's an example of custom dithering. Note that pointings are provided for each dither, rather than the dither pointings from an initial position. The three pointings provided in the example below would be executed as part of one only OB. Note that TARGID must be equal to TARGNAME in every row.
# A custom 3-dither pattern LIFU pointing |
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