June 2000 Observing Plan

version 0.1 2000-June-14; 02:40am(rgm@int)

Run dates: Mon June 12 to Thur 22 June, 2000

Note this ELAIS CIRSI CAT survey proposal is different from the ELAIS CIRSI ITP survey proposal. In the ITP run in May we did a shallow survey with an exposure time of 10mins in H whereas in the June CAT run the goal is to go deep in a single 4-pointing tile.

How much time do we have available

Each night there is 6.9hrs between astronomical twilight. However we may be able to get 7.9hrs is we observe between 12degree twilights. We should aim for this. This means do a snafu on a V=5 star soon after sunset. Lets assume 7hrs per night and 50% of time is used for science observations. This gives: Other useful material: The first stab at an observing plan for the June PATT run is as follows:
  1. complete 3x3 CIRSI raster in ELAIS N1 and N2 regions in H to the same depth as the ITP survey In our PATT proposal we proposed to expose for 300seconds. I propose to use 360seconds as outlined in the next section. This will amount to 192 minutes
  2. extend the raster in N1 in H to cover full 3deg x 3deg region
  3. get some coverage in J. A decision on this needs an assessment of the J throughput and J background
  4. Observe some XMM fields in J and H
  5. Get J and H images of 1 Feltzing/Gilmore/Wyse galactic clusters that were observed in a previous PATT run
  6. Get J and H raster of WFC field of the z=0.583 galaxy cluster MS 2053.7-0449
  7. 2240+0000 WFS region; concentrate on region covered in CFHT survey

What did we say we would do in our proposal

How do we get some J coverage

To get some J we have a number of options; One option would be to cover 1.5degx1.5deg regions in the ELAIS N1 and N2 regions in J for 360secs per pointing. This would give us around 4.5deg^2 of J data. It would require: Going shorter than 360seconds with the current CIRSI software is quite inefficient. I will write more on this when I have analyzed my timing tests.