Deployment NameGliderProjectDeployedRecoveredDaysDistancePayload BayOSNotes
ru26d-20250107T1348ru26dLTER2025-01-07
13:48Z
13.6282.8 km98848.30

All Notes (7)

Created by: waite @ 2025-01-12 22:49:34Informational

CTD off at surface, see if that helps with logging aborts.

Loadmission ru26d.mi


# Low density abort stuff
sensor: u_abort_min_burn_time(sec) 600 # Never drop the weight before this time
sensor: u_abort_max_burn_time(sec) 64800 # 18 hrs, at least a tidal cycle, Always drop the weight after this time

sensor: u_reqd_depth_at_surface(m) 2.75

# Steering params
sensor: u_hd_fin_ap_run_time(secs) 12
sensor: u_hd_fin_ap_gain(1/rad) 1.50
sensor: u_hd_fin_ap_igain(1/rad-sec) 0.015
sensor: u_hd_fin_ap_dgain(sec/rad) 6.00
sensor: u_hd_fin_ap_hardover_holdoff(sec) 30.0
#sensor: u_heading_deadband(rad) -1

# Altimeter settings:
#sensor: u_min_altimeter(m) 3.7 # in, altimeter reading must be between these(inclusive)
#sensor: u_max_altimeter(m) 25.0 # the maximum range of the altimeter
#sensor: u_alt_reqd_good_in_a_row(nodim) 2
# sensor: u_alt_filter_enabled(bool) 0
# sensor: m_altitude_rate(m/s) -1 # negative avoid the bug

# Pitch params
sensor: u_pitch_ap_gain(1/rad) -2.0 # -3 default
sensor: u_pitch_ap_dgain(s/rad) -1 # 1 default
#sensor: u_pitch_ap_deadband(rad) 0.079 # .079 = 4.5 deg
#sensor: f_battpos_deadzone_width(inches) 0.2 # .2 default
#sensor: f_battpos_db_frac_dz(nodim) 0.625 # .5 default

# Slowing the pitch down - 10/7/20 took a quick look at ru34 dbd and it looks like defaults do well, it runs hot until about 6 m down and then starts doubling
sensor: u_min_pitch_ap_period(sec) 2 # runs no faster
sensor: u_max_pitch_ap_period(sec) 60 # runs at least this often

Created by: waite @ 2025-01-11 01:17:11Informational
Modified by: waite @ 2025-01-11 01:19:34

G2 example of science unable to open log file after transferring files.
Surface Log: ru26d_20250111T002531

Glider stayed connected for a while - tried to re-sequence, then aborted again for initialization error.

Created by: waite @ 2025-01-07 21:15:39Informational

optics off below 300m

Created by: waite @ 2025-01-07 17:32:19Informational

pitch set to 30 degrees for dives and climbs

Created by: waite @ 2025-01-07 17:32:07Informational

undervolts abort when pumping at depth, change mission abort to 12.5 for undervolts

Created by: lgarzio @ 2025-01-07 16:59:27Informational

Operating System: 8.3

Instruments:

Seabird pumped CTD
9884
9/5/2022

Wetlabs ECO FLBBCD-SLC
4156
8/16/2021

Created by: lgarzio @ 2025-01-07 16:58:12Operations

Deployed by Charlotte Bramich and Abby Tomita aboard the RHIB Hadar out of Palmer Station, Antarctica with shoreside support from Nicole Waite.