Overheads
Estimates of OmegaCAM observing overheads have been moved to this page , the general Paranal instrument overhead list..
Note regarding filters: It is recommended to avoid frequent filter changes within a single OB. Filter changes between different magazines take about one minute, while filter changes within the same magazine take about two minutes. The current distribution of the filters in the two magazines is optimized for a sequence u-g-r-i-z. Filter changes between subsequent OBs are supposed to be absorbed in the preset overhead.
Current (Septermber 2011) filter distribution in the two magazines.
| Magazine 1 | Magazine 2 |
|---|---|
u_SDSS |
|
| g_SDSS | |
| z_SDSS | i_SDSS |
| V_JOHN | B_JOHN |
| u_g_r_i_SDSS | H_ALPHA [H_ALPHA of OmegaCAM consortium] |
| v_STRM | NB_659 [H_ALPHA of VPHAS+] |