Survey Progress
The range is shortened on Mary Ann to reduce noise, and Ginger takes a closer look at a target…
FRIDAY, 03.13.09
0756: To Mike Purcell, RE: Transducers
Mike, Ted Waitt agrees to stop at Hyannis before going to New York. I will coordinate with you and the pilots, but is it ready for sure. Will it be OK for someone to run that part to Hyannis by 3:30 p.m. and wait to hand it to the pilot? This leaves no room for error. One more run.
0750: From Ted Waitt
E-mails crossed. It’s not a big deal to have them do Hyannis first.
0758: Response To Ted Waitt
Roger, thanks. Dom Rissolo and I were cross-talking yesterday. Like when that happens and everyone is simpatico. Seems a good thing to me.
Mary Ann came up this morning. While there is still some noise in her starboard channel, it does not seem to be getting worse and we’re getting full coverage with the overlap. Gonna scale it back 50 meters and see what it does, but we’re getting full missions with no further degradation. Whatever it is, it’s a different problem than what devoured the long-range transducers. Ginger is down now with the last set of 75/410s, up in six hours. She’s on that re-acquisition, too.
Bad channels are plaguing us. Note as well the rough terrain in the good channel, probably a lava field.
0852: From Mike Purcell, Current Status
Now that that is settled, what are the vehicles up to? What boxes are we in?
0928: RE: Current Status
They seem to be doing okay. Mary Ann is on 10a/11a, running the 230/540s. She just went in. We scaled the range back a bit, the starboard channel is unclear in the last 50 meters at the 350-range, but the overlap was based on a 300-meter range so we got coverage.
Ginger has the last hopeful 75/410 on board, and is down running two lanes: 10a and then going north into 10b to run south to cover some lanes that had only one channel of data (with the known good transducer shooting into the empty lane). She’ll be back in about four to four and a half hours.