Data Quality Reports for Session: 154750 User: tami1toto Completed: 11/23/2013

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D130710.1MAG/NAV/M1 - Missing datamagnavM1.a1
D131007.10MAG/NAV/M1 - Data outage due to power failure and VM issuemagnavM1.a1
D131007.11MAG/NAV/M1 - Missing hour of datamagnavM1.a1
D131007.12MAG/NAV/M1 - Data loss due to removal of contingent TSI instrumentmagnavM1.a1
D131007.2MAG/NAV/M1 - Data outage during transition from failed SEANAV system to rental Hydrins
system.		magnavM1.a1
D131007.3MAG/NAV/M1 - Data stops due to Hydrins III rental system hangmagnavM1.a1
D131007.4MAG/NAV/M1 - SEANAV data outage due to loss of ship powermagnavM1.a1
D131007.6MAG/NAV/M1 - Ship at dry dock or in transit to or from dry dockmagnavM1.a1, magnavgpsM1.a1
D131007.7MAG/NAV/M1 - 10 minute outage due to serial port hangmagnavM1.a1
D131007.8MAG/NAV/M1 - Software NAV (seanav vm) computer system softwaremagnavM1.a1
D131007.9MAG/NAV/M1 - Data loss due to AMF2 Data System computer and VM problems.magnavM1.a1
D131008.4MAG/NAV/M1 - SEANAV system end-of-life issues beginmagnavM1.a1
D131008.5MAG/NAV/M1 - System configuration errors at set-upmagnavM1.a1


DQRID : D130710.1
Start DateStart TimeEnd DateEnd Time
07/07/2013194307/09/20131932
Subject:
MAG/NAV/M1 - Missing data
DataStreams:magnavM1.a1
Description:
Data are missing and unrecoverable.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.10
Start DateStart TimeEnd DateEnd Time
07/07/2013195407/09/20131932
Subject:
MAG/NAV/M1 - Data outage due to power failure and VM issue
DataStreams:magnavM1.a1
Description:
Power failure on ship occurred.  When power was restored seanav vm rebooted into read-only 
mode not allowing for collection of data.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.11
Start DateStart TimeEnd DateEnd Time
08/13/2013000008/13/20130100
Subject:
MAG/NAV/M1 - Missing hour of data
DataStreams:magnavM1.a1
Description:
SEANAV raw data file was not recovered for unknown reason.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.12
Start DateStart TimeEnd DateEnd Time
09/26/2013194810/01/20132326
Subject:
MAG/NAV/M1 - Data loss due to removal of contingent TSI instrument
DataStreams:magnavM1.a1
Description:
TSI instrument was removed without mentor knowledge.  Associated TSI serial port was 
required for NAV data collection.  NAV data collection finally resumed after substituting null 
device for missing TSI serial port.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.2
Start DateStart TimeEnd DateEnd Time
11/01/2012162412/06/20122159
Subject:
MAG/NAV/M1 - Data outage during transition from failed SEANAV system to rental Hydrins 
system.
DataStreams:magnavM1.a1
Description:
Kearfott SEANAV Fiber Optic Gyro system came to end of life on Nov 3, 2012.  A rental 
IXSEA Hydrins III system was secured to replace it with normal operation not until Dec 6, 
2012.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.3
Start DateStart TimeEnd DateEnd Time
01/01/2013174701/03/20131937
Subject:
MAG/NAV/M1 - Data stops due to Hydrins III rental system hang
DataStreams:magnavM1.a1
Description:
The Hydrins III rental system hangs.  Problem was not corrected until ship was in port 
allowing for mentor access.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.4
Start DateStart TimeEnd DateEnd Time
01/06/2013011701/06/20130558
Subject:
MAG/NAV/M1 - SEANAV data outage due to loss of ship power
DataStreams:magnavM1.a1
Description:
Loss of ship power shut down most instruments
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.6
Start DateStart TimeEnd DateEnd Time
01/08/2013174505/11/20130548
Subject:
MAG/NAV/M1 - Ship at dry dock or in transit to or from dry dock
DataStreams:magnavM1.a1, magnavgpsM1.a1
Description:
Ship was at dry dock without MAGIC instruments or in transit to or from dry dock
Measurements:magnavM1.a1:
  • Heave: up positive(heave)
  • Sway directional velocity, toward port positive(sway_velocity)
  • yaw_angular_rate
  • Sway: toward port positive(sway)
  • seanav_monitor
  • lat
  • surge_acceleration
  • sway_acceleration
  • Heave directional velocity, up positive(heave_velocity)
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • time
  • Roll angle reported by tilt table(roll)
  • base_time
  • Surge directional velocity, bow forward positive(surge_velocity)
  • time_offset
magnavgpsM1.a1:
  • HLN(VN)

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DQRID : D131007.7
Start DateStart TimeEnd DateEnd Time
05/12/2013064005/12/20130650
Subject:
MAG/NAV/M1 - 10 minute outage due to serial port hang
DataStreams:magnavM1.a1
Description:
Serial port hangs.  seanavlogd auto-check every ten minutes restarts system
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.8
Start DateStart TimeEnd DateEnd Time
05/14/2013210305/14/20132108
05/14/2013214605/14/20132154
05/14/2013220305/14/20132204
05/14/2013224105/14/20132242
05/14/2013224905/14/20132250
05/14/2013225305/14/20132253
05/14/2013225705/14/20132302
05/14/2013230905/14/20132310
05/14/2013233805/14/20132340
05/15/2013200105/15/20132008
05/15/2013203105/15/20132036
05/15/2013203805/15/20132044
05/15/2013204505/15/20132048
05/15/2013230805/15/20132310
05/15/2013232605/15/20132330
05/15/2013233405/15/20132336
05/15/2013234305/15/20132344
05/15/2013234705/15/20132348
05/16/2013003605/16/20130038
05/16/2013003905/16/20130040
05/16/2013052505/16/20130526
05/16/2013053605/16/20130617
05/16/2013063705/16/20130658
05/16/2013162105/16/20131622
05/16/2013162705/16/20131840
Subject:
MAG/NAV/M1 - Software NAV (seanav vm) computer system software
DataStreams:magnavM1.a1
Description:
Testing NAV system software on seanav vm.  Various short data gaps as listed.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131007.9
Start DateStart TimeEnd DateEnd Time
06/07/2013214706/08/20131702
Subject:
MAG/NAV/M1 - Data loss due to AMF2 Data System computer and VM problems.
DataStreams:magnavM1.a1
Description:
Note that the data gap begins when ship is docked at Long Beach.
Data are not generally used when ship is at dock.
Ship left Long Beach on June 8, 2013 at 11:25.
So data gap while at sea is June 8, 2013 11:25 to 17:02 UTC.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131008.4
Start DateStart TimeEnd DateEnd Time
10/11/2012174710/11/20121754
10/15/2012100010/16/20120200
10/16/2012210710/18/20121440
Subject:
MAG/NAV/M1 - SEANAV system end-of-life issues begin
DataStreams:magnavM1.a1
Description:
When initially purchased, it was not realized that the SEANAV Fiber Optic Gyros (FOG) have 
a predictable life time before degradation and failure. In October 2012, the FOG 
end-of-life issues started to appear.  The problem was not diagnosed immediately.  

When the internal FOG lasers go below a selected intensity the SEANAV enters a "NO GO" 
mode and data ceases.  When this failure cause was finally identified we learned it was 
possible to delay the failure by adjusting internal laser thresholds somewhat, not affecting 
data quality.  

The specified data outages are due to these NO GO periods and data resumed when laser 
thresholds were further lowered.  Ultimate failure was however reached on Nov 1, 2012 at 
16:24 UTC.

GPS data from the SEANAV was still available and data records with date, time, latitude, 
longitude, northvelocity (m/s), eastvelocity (m/s) were collected into a new data stream 
named magnavgpsM1.a1.  These data do not contain any ship attitude data such as 
roll/pitch/yaw.  

Note that ship attitude data is also collected from motion sensors associated with other 
MAGIC instruments.  These alternate/surrogate motion data sources might be useful 
depending on the particular need.  Contact the SEANAV mentor for discussion.
Measurements:magnavM1.a1:
  • heave_acceleration
  • seanav_mode
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Heave: up positive(heave)
  • yaw_angular_rate
  • Surge: bow forward positive(surge)
  • Heading: fron north(yaw)
  • Sway: toward port positive(sway)
  • pitch_angular_rate
  • alt
  • Pitch angle reported by tilt table(pitch)
  • lon
  • cycle_count
  • seanav_monitor
  • sway_acceleration
  • surge_acceleration
  • lat
  • time
  • Heave directional velocity, up positive(heave_velocity)
  • Roll angle reported by tilt table(roll)
  • base_time
  • time_offset
  • Surge directional velocity, bow forward positive(surge_velocity)

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DQRID : D131008.5
Start DateStart TimeEnd DateEnd Time
12/04/2012000012/04/20122310
Subject:
MAG/NAV/M1 - System configuration errors at set-up
DataStreams:magnavM1.a1
Description:
The newly installed Hydrins III system was incorrectly configured resulting in missing GPS 
data and some data products were therefore affected.
Measurements:magnavM1.a1:
  • Heading: fron north(yaw)
  • lon
  • heave_acceleration
  • sway_acceleration
  • surge_acceleration
  • lat
  • Heave directional velocity, up positive(heave_velocity)
  • roll_angular_rate
  • Sway directional velocity, toward port positive(sway_velocity)
  • Surge directional velocity, bow forward positive(surge_velocity)
  • yaw_angular_rate

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END OF DATA