LMG Data Report

LMG02_01A

Cruise Data Report

February 6 – March 3, 2002

Table of Contents
Table of Contents c

Introduction 1

Archive Data Extraction *

Distribution Contents 3

ADCP 3

CTD 3

Cruise Track 3

PUV – GUV (not collected on every cruise-remove if not present) 3

Isobar Charts 4

Data and Science Report 4

LMG JGOFS Data Products 4

RVDAS 5

Data File Names and Structures 6

XBT 11

Processing Notes 11

LMG02_01 Sensors *

Shipboard Sensors *

LMG02_01 CTD Sensors: *

Acquisition Problems and Events 13

Calibration Data 14

Introduction

The LMG data acquisition systems continuously log data from a suite of instrumentation throughout the cruise. This document describes the format of that data and its location on the distribution CDs. It also contains important information which may affect how this data is processed such as instrument failures or other known problems with acquisition.

The data collected during this cruise is distributed on a CD-ROM written in ISO9660 level-1 format. This data format has very strict requirements on filenames and organization. However, it is readable by virtually every computing platform.

All of the data has been compressed using Unix "gzip" compression. Gzipped files have a ".gz" extension. Tools are available on all platforms for uncompressing and de-archiving these formats. On Macintosh, Stuffit Expander with DropStuff will open a tar archive and uncompress gzipped and Unix compressed files. For Windows9X, WinZip, a shareware utility included on this CD (remember, it is shareware) will open these files.

IMPORTANT: Read the last section in this document, Acquisition Problems and Events, for important information that may affect the processing of this data.
Archive Data Extraction

It is often useful to know exactly how an archive was produced when expanding its contents. Tar files were created using the following commands:

tar cvLf archive-file files-to-be-archived

To create a list of the files in the archive:

tar tvf archive-file > contents.list

To extract the files from the archive:

tar xvf archive-file file(s)-to-extract

G-zipped files will have a ".gz" extension on the filename. These files can be decompressed after de-archiving, using:

gunzip filename.gz

The directories in the archive are structured in the following manner:

ADCP /LMG02_01A /Pingdata Cal/ Ctd /Process /Process2 /Process3 /Raw Isobars/ JGOF/ lmgjgof.tar LMG02-1A-Cruise-Report LMG02-1A-cruise-track LMG02-1A-CTD LMG02-1A-depth-survey LMG02-1a-met Map/ Pics/ QC_Plots/ Report/ .doc, .html, .txt	rvdas/ lmguw.tar lmgnav.tar Salts/ Utility/ Winzip Aladdin Mac XBT/ XCTD/ Instrument.coeff

Distribution Contents

ADCP

Adcp/

The ADCP data set is broken up into files representing 24 hours of data collection. The files are named pingdata.xxx (xxx representing a day number). Note that these extensions do NOT represent Julian day numbers. Please refer to the file’s creation date.

Some ADCP data is also transmitted to RVDAS. East and North vectors for ship’s speed relative to the reference layer and ship’s heading are archived in the navigational data section of RVDAS.

CTD

Ctd/

Process/ preliminary process results

Process2/ first revision files

Process3/ final revision files

Raw/ unprocessed data

For more information and updated software visit the web site at www.seabird.com.

Cruise Track

PostScript and JPG cruise track plots have been produced for this cruise: LTER_Map.ps and LTER_Map.jpg.

PUV – GUV

Not used this cruise.

Isobar Charts

Isobars/

Analysis of mean sea level pressure from the National Center for Environmental Prediction's Medium Range Forecast Model. Updated every 12 hours.

Satellite Images processed for this cruise were organized into three folders cwifs, ice and wx for the different types of teraScan products. Files were named in the following convetion:

YYJJJ.HH.gif where:

YY = year

JJJ = Julian day

HH = UTC time of report

Data and Science Report

Report/

Copies of this report in MS Word, HTML, and text formats. The weekly science reports in text format may be included upon request of the Principal Investigator.

LMG JGOFS Data Products

JGOF/

The JGOFS data set consists of a single file produced each day named jg<julian_day>.dat.gz where <julian_day> is the day the data was acquired. The ".gz" extension indicates that the individual files are compressed before archiving. The daily file consists of 22 separate columnar fields in text format, which are described below. The JGOFS data set is obtained primarily by applying calibrations to raw data and decimating to whole minute intervals. However, several fields are derived measurements from more than a single raw input. Note: Null, unused, or unknown fields are filled with 9’s in the JGOFS data.

Additionally, 3 separate QC plots are generated daily by the ET using the JGOFS data set. These plots include TSG and Bathymetry data, meteorological data, and navigation data. The files are called ocean<julian_day>.ps, met<julian_day>.ps, and nav<julian_day>.ps respectively.

Field	Data	Units
01	GMT date	dd/mm/yy
02	GMT time	hh:mm:ss
03	PCOD latitude (negative is South)	Ddd.dddd
04	PCOD longitude (negative is West)	Ddd.dddd
05	Ships speed	Knots
06	GPS HDOP	-
07	Gyro Heading	Degrees (azimuth)
08	Course over ground	Degrees (azimuth)
09	Mast PAR	mEinsteins/meters² sec
10	Sea surface temperature	° C
11	Not used	-
12	Sea surface salinity	PSU
13	Sea depth (uncorrected, calc. sw sound vel. 1500 m/s)	meters
14	True wind speed (port windbird)	meters/sec
15	True wind direction (port windbird)	degrees (azimuth)
16	Ambient air temperature	° C
17	Relative humidity	%
18	Barometric pressure	mBars
19	Sea surface fluorometry	volts (0-5 FSO)
20	Not used	-
21	PSP	W/m²
22	PIR	W/m²

RVDAS

rvdas/

RVDAS (Research Vessel Data Acquisition System) was developed at Lamont-Doherty Earth Observatory of Columbia University and has been used on the R/V Maurice Ewing for several years. It was adapted for use on the Nathaniel B. Palmer and her sister ship, the R/V Laurence M. Gould.

Below you will find detailed information on the data included. Be sure to read the "Significant Acquisition Events" section below for important information about data acquisition during this cruise.

Meteorological and Light Data

Measurement	File ID	Collect. Status	Rate	Instrument
Air Temperature	lmet	continuous	1 sec	R. M. young 41372VC
Relative Humidity	lmet	continuous	1 sec	R. M. young 41372VC
Wind Speed/Direction	lmet	continuous	1 sec	R. M. young 5106
PIR (LW radiation)	lmet	continuous	1 sec	Eppley PIR
PSP (SW radiation)	lmet	continuous	1 sec	Eppley PSP
Photosynthetically- Available Radiation	lmet	continuous	1 sec	BSI QSR-240
Barometer	lmet	continuous	1 sec	R. M. young 61201

Navigational Data

Measurement	File ID	Collect. Status	Rate	Instrument
Attitude GPS	lash	continuous	1 sec	Ashtec ADU-2
P-Code GPS	lpcd	continuous	1 sec	Trimble 20636-00SM
Gyro	lgyr	continuous	0.2 sec	Yokohama Gyro
Trimble GPS	tgps	continuous	1 sec	NT200

Geophysical Data

Measurement	File ID	Collect. Status	Rate	Instrument
Bathymetry	lknu	variable	Varies	Knudsen 320B/R

Oceanographic Data

Measurement	File ID	Collect. Status	Rate	Instrument
Salinity	ltsg	continuous	15 sec	SeaBird 21
Sea S Temperature	ltsg	continuous	15 sec	SeaBird 3-01/S
Fluorometry (analog)	ltsg	continuous	15 sec	Turner 10-AU-005
ADCP	ladc	continuous	1 sec	RD Instruments

Data File Names and Structures

RVDAS data is divided into two broad categories, Underway and Navigation. The groups are abbreviated "uw" and "nav". Thus, these two tar files, lmguw.tar and lmgnav.tar exist under the top-level rvdas directory. The instruments are broken down as shown. Each data file is g-zipped to save space on the distribution. Not all data types are collected everyday or on every cruise.

RVDAS data files are named following the convention: LMG[FileID].dDDD.

The FileID is a 4-character code representing the system being logged, for example: lmet (for meteorology)
DDD is the Julian day of the data collection

Underway Data	File ID	Navigation Data	File ID
Meteorolical	lmet	Gyro Compass	lgyr
Knudsen	lknu	P-CODE GPS	lpcd
Thermosalinograph	ltsg	Ashtech ADU2 GPS	lash
ADCP	ladc	Trimble NT2100 GPS	tgps
Sound Velocity Probe	lsvp

Data is received by the RVDAS system via RS-232 serial connections. The data files that comprise the rvdas data set are described below. A time tag is added to each line of data received and the data is written to disk.

YY+DDD:HH:MM:SS.SSS [data stream from instrument]

Where, YY: two-digit year, DDD: Julian Day, HH: 2 digit hours, MM: 2 digit minutes SS.SSS: seconds. All times are UTC.

The delimiters used to separate fields in the raw data files are usually spaces and commas, but other delimiters are used (::, =, @) and occasionally there is no delimiter. Care should be taken when reprocessing the data that the fields separations are clearly understood. An example data

lknu

99+099:00:18:19.775 hf,305.2,lf,304.3

Field	Data	Units
1	RVDAS Time Tag
2	hf – high frequency flag (12 kHz)
3	high fequency depth	meters
4	lf – low frequency flag (3.5 kHz)
5	low frequency depth	meters

lmet

00+040:00:00:00.928 16-10-97 00:01:19 005.53 005.53 005.69 145 141 005.15 005.12 005.15

146 148 004.4 004.4 004.4 94.07 94.06 94.07 0981.40 -0.023 00.292 00.315

Field	Data	Units
1	RVDAS Time Tag
2	Instrument date	dd-mm-yy
3	Instrument time	hh:mm:ss
4	Port wind speed (10 second running average)	m/s
5	Port wind speed (min for 24 hour cycle)	m/s
6	Port wind speed (max for 24 hour cycle)	m/s
7	Port wind direction	degrees
8	Port wind direction (standard deviation)	degrees
9	Starboard wind speed (10 second running average)	m/s
10	Starboard wind speed (min for 24 hour cycle)	m/s
11	Starboard wind speed (max for 24 hour cycle)	m/s
12	Starboard wind direction	degrees
13	Starboard wind direction (standard deviation)	degrees
14	Temperature	° C
15	Temperature (min for 24 hour cycle)	° C
16	Temperature (max for 24 hour cycle)	° C
17	Relative humidity	%
18	Relative humidity (min for 24 hour cycle)	%
19	Relative humidity (max for 24 hour cycle)	%
20	Barometric pressure	millibars
21	PSP (long wave radiometer)	Volts
22	PIR (short wave radiometer)	Volts
23	PAR (photo-synthetically available radiation, 400 - 700 nm)	Volts

svp1

00+348:01:59:52.128 1539.40

Field	Data	Units
1	RVDAS Time Tag
2	Sound velocity	m/s

ltsg

00+040:00:00:06.153 6926 15.8827 0.2010 2.9218 3.239 4.334e-01

Field	Data	Units
1	RVDAS Time Tag
2	Scan number
3	Internal water temperature	° C
4	Salinity	PSU
5	External water temperature	° C
6	Transmissometer signal	Volts
7	Fluorometer signal (analog)	Volts

ladc

00+019:23:59:59.099 $PUHAW,UVH,-1.48,-0.51,250.6

Field	Data	Units
1	RVDAS Time Tag
2	$PUHAW
3	UVH (E-W, N-S, Heading)
4	Ship Speed relative to reference layer¹velocity², East vector	knots
5	Ship Speed relative to reference layer¹velocity², North vector	knots
6	Ship heading	degrees

^{1The reference layer is an average velocity measured in a number of depth "bins". On the LMG, the bins are eight meters deep and bins 3-10 define the reference layer. Hence, the reference layer is the water column from 16-80 meters beneath the ship.

^{2The speed ouput is water velocity relative to the ship’s hull and is therefore opposite of the actual
movement of the ship. For example, if the ship’s heading is due north, the North/South reference layer
velocity is likely to be negative (southerly).}

lash
ATTD: Attitude Data

01+081:00:00:00.806 $PASHR,ATT,345605.0,165.03,+001.86,-01.96,0.0018,0.0173,0*22

Field

Data

Units

1

RVDAS Time Tag $PASHR

2

ATT

3

GPS Time sec. of the week

seconds

4

heading (rel. to true North)

degrees

5

pitch

degrees

6

roll

degrees

7

Measuremnet RMS error

meters

8

Baseline RMS error

meters

9

attitude reset flag

GGA: GPS Position Fix – Geoid/Ellipsoid
01+081:00:00:00.966 $GPGGA,235952.00,6051.7937,S,06030.2175,W,1,08,01.0,+00068,M,,M,,*79

Field

Data

Units

1

RVDAS Time Tag $GPGGA

2

UTC time at position

hhmmss.ss

3

Latitude

ddmm.mmm

4

North (N) or South (S)

5

Longitude

ddmm.mmm

6

East (E) or West (W)

7

GPS quality (1=GPS 2=DGPS)

8

Number of GPS satellites used

9

HDOP

10

Antenna Height

meters

11

M for Meters

12

Geoidal height

meters

13

M for meters

14

age of diff. GPS data

15

differential reference station ID

lgyr
01+083:00:00:02.493 $PASVW,05.5,A*1C

01+083:00:00:02.713 $IIVHW,246.4,T,,M,,N,,K*7F
01+083:00:00:03.274 $HCHDT,,T*07

HDT: True Heading
01+083:00:00:02.893 $HEHDT,246.3,T*2C

Field

Data

Units

1

RVDAS Time Tag $HEHDT

2

Heading XXXXX = ddd.d

degrees

3

T flag for true heading, checksum

ROT: Rate of Turn
01+083:00:00:03.093 $HEROT,-006.3,A*03

Field

Data

Units

1

RVDAS Time Tag $HEROT

2

Rate of turn

degrees/min

3

Status: A = data valid, checksum

tgps
GGA: Global Positioning Fix Data

00+040:00:00:00.985 $GPGGA,000003,6139.961,S,05949.422,W,1,6,001.64,-00036,M,00000,M,,

Field

Data

Units

1

RVDAS Time Tag $GPGGA

2

Latitude in degrees with decimal minutes

ddmm.mmm

3

North (N) or South (S)

4

Longitude in degrees with decimal minutes

ddmm.mmm

5

East (E) or West (W)

6

GPS quality (1=GPS 2=DGPS)

7

Number of GPS satellites used

8

Horizontal dilution of precision (HDOP)

9

Antenna height above/below mean-sea-level (geoid)

meters

10

Units for antenna height (M = Meters)

11

Geoidal Separation¹

12

Units for Geoidal Separation (M = Meters)

meters

13

Age of differential GPS data, number of seconds since last SC104 Type 1 or 9

14

Differental reference station ID

^{1Geoidal Separation: the difference between the WGS-84 earth ellipsoid and mean-sea-level (geoid). A negative value represents mean-sea-level below ellipsoid.

GLL: Geographic Position – Latitiude/Logitude
00+040:00:00:00.065 $GPGLL,6139.96,S,05949.42,W,000002,A

Field

Data

Units

1

RVDAS Time Tag $GPGLL

2

Latitude

ddmm.mmm

3

North (N) or South (S)

4

Logitude

ddmm.mmm

5

East (E) or West (W)

6

UTC of position

hhmmss.ss

7

Status: A = Data Valid

VTG: Track Made Good and Speed over Ground
00+040:00:00:00.213 $GPVTG,161,T,149,M,009.6,N,017.8,K

Field

Data

Units

1

RVDAS Time Tag $GPVTG

2

Track, degrees true

degrees

3

T flag for True

4

Track, degrees magnetic

degrees

5

M flag for Magnetic

6

Speed over Ground

knots

7

N flag for Knots

8

Speed over Ground

kmhr

9

K flag for km/hr

VHW: Speed Through Water and Heading
00+040:00:00:00.212 $GPVHW,246,T,234,M,012.3,N,022.8,K

Field

Data

Units

1

RVDAS Time Tag $GPVHW

2

Heading, degrees True

degrees

3

T flag for True

4

Heading, degrees Magnetic

degrees

5

M flag for Magnetic

6

Speed through water

knots

7

N flag for Knots

8

Speed through water

km/hr

9

K flag for km/hr

ZDA: Time and Date
00+040:00:00:00.285 $GPZDA,000002,09,02,2000,00,00

Field

Data

Units

1

RVDAS Time Tag $GPZDA

2

UTC time

hhmmss.ss

3

Day: 01 – 31

dd

4

Month: 01 – 12

mm

5

Year

yyy

6

Local time zone description¹, 00 +/-13 hrs

7

Local time zone minutes description, same sign as local hours

^{1Zone description is the number of whole hours added to local time to obtain GMT, values are negative for East longitudes.

BWC: Bearing and Distance to Waypoint
00+040:00:00:00.865 $GPBWC,000003,6209.70,S,05824.00,W,127.2,T,115.3,M,050.1,N,014

Field

Data

Units

1

RVDAS Time Tag $GPBWC

2

UTC of bearing

hhmmss.ss

3

Destination waypoint latitude in degrees, decimal minutes

ddmm.mmm

4

Hemisphere Flag: N or S

5

Destination waypoint longitude in degrees, decimal minutes

ddmm.mmm

6

Hemisphere Flag: E or W

7

Bearing, degrees true

degrees

8

T flag for True

9

Bearing, degrees magnetic

degrees

10

M flag for Magnetic

11

Distance to waypoint in nautical miles

nm

12

N flag for Nautical Miles

13

Waypoint ID

lpcd
GGA: GPS Position Fix – Geoid/Ellipsoid

00+019:23:59:59.301 $GPGGA,235958.409,6849.6944,S,13712.8472,W,1,06,1.2,092.4,M,047.3,M,,*67

Field

Data

Units

1

RVDAS Time Tag $GPGGA

2

UTC time at position

hhmmss.sss

3

Latitude

ddmm.mmm

4

North (N) or South (S)

5

Longitude

ddmm.mmm

6

East (E) or West (W)

7

GPS quality (1=GPS 2=DGPS 3=P-CODE)

8

Number of GPS satellites used

9

HDOP

10

Antenna Height

meters

11

M for Meters

12

Geoidal height

meters

13

M for meters

14

Null field

15

Checksum

GLL: GPS Latitude/Longitude
00+019:23:59:59.381 $GPGLL,6849.6944,S,13712.8472,W,235958.409,A*35

Field

Data

Units

1

RVDAS Time Tag $GPGLL

2

Latitude

degrees

3

North or South

4

Longitude

degrees

5

East or West

6

UTC of position

hhmmss.sss

7

staus of data (A = valid)

8

Checksum

VTG: GPS Track and Ground Speed
00+019:23:59:59.382 $GPVTG,238.7,T,182.3,M,001.8,N,003.3,K*41

Field

Data

Units

1

RVDAS Time Tag $GPVTG

2

Heading

degrees

3

degrees True (T)

4

Heading

degrees

5

degrees magnetic (M)

6

Ship speed

knots

7

N = knots

8

Speed

km/hr

9

Checksum

XBT
XBT/
During the cruise Expendable Bathythermographs were used to obtain water column temperature profiles. The data files from these launches are included.
XCTD
XCTD/
In addition to Expendable Bathythermographs, expendable CTD probes were used at selected points to obtain water column temperature and salinity profiles. The data files from these launches are included.

Processing Notes
Refer to the instrument.coeff file, included in the root level of the data distribution, for information on how the RVDAS data was processed.
LMG02_01 Sensors
Shipboard Sensors

Sensor

Description

Serial #

Cal. Date

Status

Port Anemometer

R.M. Young 105106

VM35061

04/15/01

collect

Stbd Anemometer

R.M. Young 105106

VM28394

04/15/01

collect

Barometer

R.M. Young 61201

BP01150

11/07/01

collect

Humidity/Wet Temp

R.M. Young 41372VC

6133

06/01/01

collect

Mast PAR

BSI QSR-240

6394

06/05/01

collect

Pyranometer

Eppley PSP

31701F3

06/01/01

collect

Pyrgeometer

Eppley PIR

32031F3

06/01/01

collect

GUV

Biospherical GUV-511

Not Used

TSG

SeaBird SBE21

219209-1577

11/10/01

collect

TSG Remote Temp

SeaBird 3-01/S

1619

06/02/01

collect

Fluorometer

Turner 10-AU-005 Lamp: daylight 10-045, reference filter: 10-052, emission filter: 10-051, excitation filter: 10-050.

6046RTD

collect

Transmissometer

WET Labs C-Star

CST-168DR

02/20/01

collect

P-Code GPS

Trimble 20636-00 (SM)

220035265

PCD/CIV

Bathymetry

Knudsen 320B/R

collect

LMG02_01 CTD Sensors:

Sensor

Description

Serial #

Cal. Date

Status

CTD Fish

Sea-Bird 9Plus-3400m

91480

06/23/01

collect

CTD Deck Unit

Sea-Bird 11Plus

11P8908-0288

collect

Prim. Temp. Sensor

Sea-Bird 3-02/F

1542

07/26/01

collect

Sec. Temp. Sensor

Sea-Bird 3-02/F

1529

11/13/01

collect

Prim. Cond. Sensor

Sea-Bird 4-01/O

692

07/26/01

collect

Sec. Cond. Sensor

Sea-Bird 4-01/O

350

11/14/01

collect

Diss. Oxygen Sensor

Sea-Bird 13-02-B

130412

07/26/01

collect

Fluorometer

Chelsea model Mk III Aquatracka

088015

04/24/01

collect

Pressure

DigiQuartz 410K-105

53952

06/23/01

collect

Transmissometer

WET Labs C-Star

CST-406DR

02/28/01

collect

Acquisition Problems and Events
This section lists all known problems with acquisition during this cruise including instrument failures, data acquisition system failures and any other factor affecting this data set. The format is jjj:hh:mm (jjj is julian day, hh is hour, and mm is minute). All times are in GMT.

Date(Julian)

Time(GMT)

Event

Location

037

20:25

Start DAS & SONAR

Leaving PA Dock

038

00:14

Start PIR

Fixed data stream problem

038

03:45

Stop DAS

Update TSG Trans. in inst.coeff file

038

04:03

Start DAS

038

04:10

Start ADCP

68W

038

04:15

Start TSG

68W

041

18:52

Stop TSG

Arrive Palmer Station

041

20:02

Stop SONAR

Arrive Palmer Station

042

16:54

Change ADCP pulse length to 8

Palmer Dock

042

18:16

Change Sonar Sound speed to 1456 from 1500

Palmer Dock

042

19:06

Start SONAR

Leave Palmer Station

042

19:07

Start TSG

Leave Palmer Station

043

08:50

Reboot DAS – swap file error

049

14:21

Stop Met system for 15 min.

System check

050

14:13

Reset ASHTECH

Serial error

056

01:35

Restart TSG pump

Pump overloaded (rough seas) - off 8 hrs.

057

11:00

Stop TSG

Arrive Palmer Station

057

11:05

Stop SONAR

Arrive Palmer Station

057

12:02

Change ADCP pulse length back to 16

Palmer Dock

057

12:05

Change Sonar Sound speed back to 1500

Palmer Dock

058

13:45

Start SONAR

Leave Palmer Station

058

13:46

Start TSG

Leave Palmer Station

060

00:10

DAS Crashed

Memory error in bank S4

060

00:48

Restart DAS

062

02:18

Stop TSG

68W

062

02:30

Stop ADCP

68W

062

02:45

TAR DAS FILES

End data collection

Calibration Data
Cal/
All relevant calibration sheets are scanned and saved as jpeg format in this section}}}

Sensor	Description	Serial #	Cal. Date	Status
Port Anemometer	R.M. Young 105106	VM35061	04/15/01	collect
Stbd Anemometer	R.M. Young 105106	VM28394	04/15/01	collect
Barometer	R.M. Young 61201	BP01150	11/07/01	collect
Humidity/Wet Temp	R.M. Young 41372VC	6133	06/01/01	collect
Mast PAR	BSI QSR-240	6394	06/05/01	collect
Pyranometer	Eppley PSP	31701F3	06/01/01	collect
Pyrgeometer	Eppley PIR	32031F3	06/01/01	collect
GUV	Biospherical GUV-511			Not Used
TSG	SeaBird SBE21	219209-1577	11/10/01	collect
TSG Remote Temp	SeaBird 3-01/S	1619	06/02/01	collect
Fluorometer	Turner 10-AU-005 Lamp: daylight 10-045, reference filter: 10-052, emission filter: 10-051, excitation filter: 10-050.	6046RTD		collect
Transmissometer	WET Labs C-Star	CST-168DR	02/20/01	collect
P-Code GPS	Trimble 20636-00 (SM)	220035265		PCD/CIV
Bathymetry	Knudsen 320B/R			collect

Date(Julian)	Time(GMT)	Event	Location
037	20:25	Start DAS & SONAR	Leaving PA Dock
038	00:14	Start PIR	Fixed data stream problem
038	03:45	Stop DAS	Update TSG Trans. in inst.coeff file
038	04:03	Start DAS
038	04:10	Start ADCP	68W
038	04:15	Start TSG	68W
041	18:52	Stop TSG	Arrive Palmer Station
041	20:02	Stop SONAR	Arrive Palmer Station
042	16:54	Change ADCP pulse length to 8	Palmer Dock
042	18:16	Change Sonar Sound speed to 1456 from 1500	Palmer Dock
042	19:06	Start SONAR	Leave Palmer Station
042	19:07	Start TSG	Leave Palmer Station
043	08:50	Reboot DAS – swap file error
049	14:21	Stop Met system for 15 min.	System check
050	14:13	Reset ASHTECH	Serial error
056	01:35	Restart TSG pump	Pump overloaded (rough seas) - off 8 hrs.
057	11:00	Stop TSG	Arrive Palmer Station
057	11:05	Stop SONAR	Arrive Palmer Station
057	12:02	Change ADCP pulse length back to 16	Palmer Dock
057	12:05	Change Sonar Sound speed back to 1500	Palmer Dock
058	13:45	Start SONAR	Leave Palmer Station
058	13:46	Start TSG	Leave Palmer Station
060	00:10	DAS Crashed	Memory error in bank S4
060	00:48	Restart DAS
062	02:18	Stop TSG	68W
062	02:30	Stop ADCP	68W
062	02:45	TAR DAS FILES	End data collection