For those who like a matrix, here's a draft list of dates and locations that I sifted from the Deepsea Challenge website and independent reports, such as pieces filed by news outlets in Guam and Australia.
If there are errors or omissions, let me know!
|Date (Local)||Label||Location||Max depth (feet)||Notes|
|01/26/12||First submersion – no pilot||Dock at Garden Island Naval Depot, Sydney Harbor||< 5||Checks for buoyancy and water tightness|
|01/31/12||First piloted submersion||Dock at Garden Island Naval Depot, Sydney Harbor||< 5||First time pilot in sub, in water|
|Probably first half of Feb||Open-ocean test||Jervis Bay, S of Sydney||Not reported||Successful piloted tests|
|02/21/12||First attempt, test dive to 3K feet||Jacquinot Bay, 3 mi offshore of Papua, New Guinea||0||Sub launched with pilot, but aborted after 1 hr. Stayed on surface|
|02/22/12||Second attempt, test dive to 3K feet||Jacquinot Bay||0||Scrubbed due to camera-control problems|
|02/23/12||Test dive to 3K feet||Jacquinot Bay||3,250||Successful dive, photography, moved horiz at 3 kt, and rendezvous with lander Mike and also ROV operated from above|
|02/27/12||Attempted test dive to 12K||Jacquinot Bay||0||Scrubbed|
|02/28/12||Test dive to 12K||Jacquinot Bay||12,000||Successful rendezvous with landers Mike and Andrew, maneuvered 5 km horiz with guidance from ship|
|03/04/12||First Dive, New Britain Trench||New Britain Trench||23,818||On way to NB Trench bottom, tried to stop 5 kt descent with large dumps of trim shot, then ascended slowly; then dropped ascent wts|
|03/07/12||Second Dive, New Britain Trench||New Britain Trench||26,791||Successful dive to trench bottom for photography – maneuvered 1.5 km horiz, 300m vert|
|03/21/12||Unpiloted test dive to Challenger Deep||Not reported||“nearly seven miles”||tested to “almost 8 tons per sq inch”|
|03/25/12||First solo trip to deepest point||Challenger Deep (probably vicinity of 11.3632, 142.5770)||35,756||Successful dive – first solo dive to bottom of hadal zone; 3D photography; core sample brought up; surfaced at local noon|