This proposal aims to extend the current WISP project, under development at CFHT with CFH12k, to the images coming from the various surveys made on MegaCam which are not already designed for a search for moving objects in the Solar System.

The main outlines of WISP are as following:
- Take benefit of large field imaging for rapid detection of solar system moving objects.
- Make the astrometric data available to the community for follow-up, in order to feed the minor planet data base by the CFHT discovered objects, with focus made on non classical objects (rapid motion, high inclination, Earth's or Mars' grazers, Centaur's, ...). The Near Earth objects are some of the most interesting targets of this program.
- Study the asteroid population, mainly through completeness studies on the available fields for objects up to magnitudes as high as 23 to 24 (for ordinary main belt objects).
- Search for TNOs (Trans Neptunian Objects) if the data are well suited for that purpose (fields not too far from to the ecliptic).

As an example of the output of such a program, four nights of CFH12k in February of this year gave 150 new main belt asteroids observed for at least two nights, and 100 observed on only one night.

The current development of WISP is defining and implementing automatic procedures for quick data processing, moving object detection and an easy web based confirmation of asteroid discovery. The next 2 years of CFH12k will bring WISP to a mature and robust configuration which will make it a very powerful tool for a systematic search of moving objects bright enough to be recorded on a single image. This development leads naturally to MegaWISP.

MegaWISP won't search for objects which can be detected only by adding images (with or without shift), and then won't replace the surveys dedicated to the search of faint TNOs using the so-called "pencil beam" approach. But the tools developed could also be used for the surveys dedicated to bright TNOs (as those currently  done by Jewitt on CFH12k) or Inner Earth Objects...

Finally, MegaWISP will be used for normal (i.e. non survey mode) observations with the agreement of the PIs as it is currently done with CFH12k.

To bring MegaWISP as an answer to the call for ideas for wide field surveys has the main following goal: bring right now to the attention of the working group that the strategy of observation of any survey should include, if it doesn't impact on the main science driver(s) of that survey, the needs coming from WISP, and also from other moving object related surveys. These needs will be defined as the working group is working, in order to maximize the output of these surveys. The experience of WISP, as well as from other programs dealing with TNOs for example, will be a good starting point to define these strategies.