All Notes (17)
Strobe not functional.
used RU32 de_pump for this mission
Leak was caused by optode bulkhead, subconn mcbh, installed prior to cruise by M. Fraser. Leak trailed down to aft leak detect in distinct trail, not much salt residue elsewhere.
Recovered by R/V Rachel Carson
Leak triggered Tuesday early AM, aft leak, cleared fairly quickly.
Was 200 m down on its first 26 deg dive (vs 22). Suggests maybe aft cap?
Drifting with science turned on.
u_abort_max_burn_time set to 10800 sec
.45 rad pitch for coming on slope.
Ended up turning the altimeter off, had some false hits Saturday? around 500 m.
No more double yo's radome fin couldn't handle the TBD size.
Switched to double yo's for long transit
loadmission ru26d.mi
Setting SENSOR u_abort_min_burn_time(sec) value 600.000000
Setting SENSOR u_abort_max_burn_time(sec) value 64800.000000
Setting SENSOR u_reqd_depth_at_surface(m) value 2.750000
Setting SENSOR u_hd_fin_ap_run_time(secs) value 12.000000
Setting SENSOR u_hd_fin_ap_gain(1/rad) value 1.500000
Setting SENSOR u_hd_fin_ap_igain(1/rad-sec) value 0.015000
Setting SENSOR u_hd_fin_ap_dgain(sec/rad) value 6.000000
Setting SENSOR u_hd_fin_ap_hardover_holdoff(sec) value 30.000000
Setting SENSOR u_min_altimeter(m) value 3.700000
Setting SENSOR u_max_altimeter(m) value 25.000000
Setting SENSOR u_alt_reqd_good_in_a_row(nodim) value 2.000000
Setting SENSOR u_pitch_ap_gain(1/rad) value -1.000000
Setting SENSOR u_pitch_ap_dgain(s/rad) value -1.000000
Setting SENSOR u_min_pitch_ap_period(sec) value 2.000000
Setting SENSOR u_max_pitch_ap_period(sec) value 60.000000
u_min_water_depth 375
u_max_altimeter 20
u_reqd_depth_at_surface 2.75
These were all set a few days ago on the shelf. Not sure if any really helped with false hits.
Science reads 10 m shallowe than glider at 950 m
FLBBCD off after 325 m, mostly for safety, but maybe reduce false altimeter hits.
It appears false altimeter hits stopped once off the shelf.
u_reqd_depth_at_surface 4, may back off more later
!!! u_min_water_depth 90 !!!!
Some false hits
Operating System: 8.3
Instruments:
Type (Make/Model)
Serial Number
Calibration Date
Notes (in-house cal date, etc)
Seabird CTD
9416p
9/24/2021
Seabird pH
10344
10/10/2021
Wetlabs FLBBCD-SLC
4662
8/31/2021
Aanderaa Optode Oxy4
644
3/31/2019
In-house check: 6/15/2022
Deployed by Nicole Waite and Kaycee Coleman with Captain John Dunlap on M/V Peregrine out of Sitka, AK.