| Guide star
aquisition |
|
| - Initial acquisition |
7.5 minutes |
| - Re-aquisition |
6 minutes |
| Coronographic acquisition
(HRC) |
2 minutes |
| - 2 images required |
|
| Exposure
overheads: |
|
| - First WFC ACCUM exposure |
2.25 minutes |
| subsequent WFC ACCUM exposures in alignment |
|
| t<334 secs |
8 minutes |
| t>334 secs |
2.25 minutes |
| - HRC ACCUM |
1 minute |
| - HRC-CORON ACCUM |
1 minute |
| - SBC ACCUM |
1 minute |
| Single filter
wheel change |
1 minute |
| Two filter wheel change |
1.5 minutes |
| Additional
moving target aquisition |
0.75 minutes |
