IGC Flight Verification Unit (FVU)Data File Standard

Release 1.00

December 13, 1994

Authors:

Bob Fletcher cai@cerfnet.com (Cambridge Aero Instruments)
Hans Trautenberg Hans.Trautenberg@physik.uni-regensburg.de (S/W Developer)

Contributors:

Ed Davies 100345.3117@compuserve.com (EW Avionics)
Walter Dittel (Filser Electronic)
John Good (Chairman SSA Competition Committee)
Phil Jeffery (Chairman BGA Competition Committee)
Tony Lauck tlauck@cerfnet.com (Computer Security Consultant)
John Mason 100415.1762@compuserve.com (EW Distribution, France)
Dave Nadler 76244.3577@compuserve.com (Borgelt Instruments)
Mike Newman mike@c-c.com (Borgelt Instruments)
Dave Robertson 100327.2014@compuserve.com (S/W Developer)
Graham Skelley (S/W Developer)
Bernald Smith (Chairman IGC GPS Subcommittee)
Peter Zander (Zander Vario)

1.0 Introduction

The following Data File Standard was developed by the IGC GPS Subcommittee and the Gliding Flight Data Recorder Manufacturers in association with a number of independent software developers. It is intended to facilitate the introduction of GPS technology into gliding and in particular into competition verification and the homologation of badge and record flights, using GPS, by the FAI. Care was taken to ensure that, in the future, the Standard could be used by other branches of the FAI.

The draft standard was presented to and accepted by the IGC at their September '94 meeting.

Issues relating to data security, turnpoint verification and Official Observer procedures were discussed at this meeting and will be addressed in the FAI Sporting Code. This standard facilitates all the alternatives discussed.

1.1 Revision Control

This standard may be modified by action of the IGC as the need arises.

Updates to this standard are published periodically in:

The Internet rec.aviation.soaring newsgroup.

updated copies will be available by FTP from:

alternatively contact: 

Bernald Smith 
Chairman IGC GPS Subcommittee 
1019 Whitmer Ct 
Fremont, CA 94539
USA

Tel: 510-656-0434 
Fax: 510-657-1261

The standard working group may be contacted through: 

Bob Fletcher       cai@cerfnet.com 
Hans Trautenberg   Hans.Trautenberg@physik.uni-regensburg.de
All suggested amendments should be directed to the working group. The IGC will review and approve amendments forwarded from the working group each year.

2.0 General

2.1 File structure

The file will consist of three types of records: single instance records, infrequent multiple instance records and frequent multiple instance records.

All the single instance records together form the file header. The remainder of the file will consist of regular fix records and irregular other records.

All the file records are limited to 76 characters in length.

Each record starts with a unique record identifier followed by the data and a CR LF at the end.

2.2 Record Types

The record types are:

2.3 Record Order

The A Record is the first record in the file followed by the H, I and J Records.

If any tasks are included (C Records) they should be next in chronological order.

B, D, E, F and K Records must be logged in chronological order. Other data records may follow in any order.

The L Records may be placed anywhere after the H, I and J Records and before the G Record.

The last record in the file is the G Record.

A typical file will be in the following format: 

A        -        FVU identification number
H        -        File header
I        -        Fix extension
J        -        Extension
C        -        Task
L        -        Log Book
B        -        Fix
B        -        Fix
D        -        Differential GPS
B        -        Fix
B        -        Fix
E        -        Event
B        -        Fix
B        -        Fix
K        -        Extension data
B        -        Fix
B        -        Fix
F        -        Constellation
L        -        Log Book
B        -        Fix
G        -        Security

2.4 Units

All the data in the flight log will comply with the following unit system:

Time                -        UTC
Distance            -        Meters
Speed               -        Kilometers per hour
Date                -        DDMMYY (day, month, year) UTC
Direction           -        True degree
Altitude            -        Meters
The representation for the above items in the flight log has to comply with the following rules:

   Time      - HHMMSSsss

     HH      - fixed to 2 digits with leading 0
     MM      - fixed to 2 digits with leading 0
     SS      - fixed to 2 digits with leading 0
     sss     - number of second decimals is computed as the number
               of fields reserved for the representation of the time minus 6

   Distance  - ddddddd

     dddddd  - number of digits computed from the number of fields
               reserved for representation, no decimals

   Speed     - SSSsss

      SSS    - fixed to 3 digits with leading 0
      sss    - number of speed decimals is computed as the number of
               fields reserved for the representation of the speed minus 3

   Date      - DDMMYY

      DD     - number of the day in the month, fixed to 2 digits with leading 0
      MM     - number of the month in year, fixed to 2 digits with leading 0
      YY     - number of the year modulo 100, fixed to 2 digits with leading 0

   Direction - DDDddd

      DDD    - fixed to 3 digits with leading 0
      ddd    - number of direction decimals is computed as the number of
               fields reserved for the representation of the direction minus 3

   Altitude  - AAAAAaaa

      AAAAA  - fixed to 5 digits with leading  0
      aaa    - number of altitude decimals is computed as the number of
               fields reserved for the representation of the altitude minus 5

2.5 File Naming

The following unique ISO 9660 (DOS) file names will be used for all official flight logs. Use of other file names is allowed for general use, but will not be acceptable by the FAI or competition organizers.

        Y M D C X X X F . G P S

        y m d c \   / f .  DOS Extension
        e o a o ----- l
        a n y n   s   i
        r t   s   e   g
          h   t   r   h
              r   i   t
              u   a
              c   l   #
              t
              o   #
              r
          
              i
              d
All the fields are alphanumeric with 'A' representing 10, 'B' representing 11, etc. In the case of days, month and flight number the first entity is represented by 1 rather than 0.

The year is the number modulo 10. So it wraps around every 10 years.

The flight # is used to indicate the flight of the day starting with 1.

The serial # is the unique identification number of the unit generating the flight recording. There are 46656 unique identification numbers available to each manufacturer.

In the event that the flight spans multiple days the take-off date is definitive. 

Example:
46AC00J2.GPS

10-June-1994 Cambridge Aero Serial # 20 Flight 2.
Manufacturer codes: 

A        -
B        -        Borgelt
C        -        Cambridge
D        -        
E        -        EW 
F        -        Filser
G        -        
H        -        
I        -        Ilec        
J        -
K        -
L        -        
M        -        Metron
N        -
O        -
P        -        Peschges
Q        -        
R        -        
S        -        Sky Force
T        -        PathTracker
U        -
V        -        Varcom
W        -        Westerboer
X        -
Y        -
Z        -        Zander
0        -
1        -        Collins
2        -        Honeywell
3        -        King
4        -        Garmin
5        -        Trimble
6        -        Motorola
7        -        Magellan
8        -        Rockwell
9        -

3.0 Single Instance Data Records

3.1 A Record - FVU ID number

The A Record has to be the first record in an FVU Data File.

The flight verification unit identification record specifies the unique number of the equipment which recorded the flight. This is most likely the manufacturer's serial number.

Format of the A Record:

A M N N N N N T E X T S T R I N G CR LF

Description       Size           Element         Remarks

Manufacturer      1 bytes        M               Valid characters alphanumeric
Unique ID         5 bytes        NNNNN           Valid characters alphanumeric
ID extension      ? bytes        TEXT STRING     Valid characters alphanumeric

3.2 G Record - Security

The G Record verifies that the ASCII data has not been altered during or following the flight. This is used for badge and record verification only. The FVU manufacturer will provide a method to check the integrity of the file with the security code.

The security code must be generated by the FVU, not the computer extracting the flight data. Flight analysis software from sources other than the manufacturer should ignore this record. All records except the H Records which have the O and P source, and the L Records must be included in the security mechanism.

The security code must be comprised of valid characters.

Format of G Record:


G S S S S S S S S S S S S S S S CR LF
G S S S S S S S S S S CR LF

Description       Size           Element         Remarks

Security code     <=75 bytes     SSSSS           Valid characters alphanumeric
The G Record may be extended to multiple lines if necessary.

The G Record should not use any non-printing character. Whitespace is often removed when ASCII files are transmitted across data communication networks.

The level of security required within this record for badges and records will be addressed by the Sporting Code.

3.3 H Record - File Header

Format of H Record:

H D D M M Y Y A A A CR LF
H S M M M P I L O T : T E X T S T R I N G CR LF
H S M M M G L I D E R T Y P E : T E X T S T R I N G CR LF
H S M M M G L I D E R I D : T E X T S T R I N G CR LF 
H S M M M N N N G P S D A T U M : T E X T S T R I N G CR LF

Description          Size            Element       Remarks

Source               1 byte          S             F - FVU, O - OO, P - Pilot
Data ID              3 bytes         III           Valid characters     0-9
Date                 6 bytes         DDMMYY        Valid characters     0-9
Accuracy in meters   3 bytes         AAA           Valid characters     0-9
Mnemonic             3 bytes         MMM           Valid characters     0-9
The header records may be added by the FVU or subsequently by an OO or the pilot. Each record starts with a standard mnemonic to be used by verification software. The actual data of the record starts with a title followed by a colon, then the information.

The default for the accuracy in meters is 500

Only records that have the source F are covered by the security code. The Sporting code will define the use of P and O source records.

The above fields are mandatory in the above order. The following data may be appended:


H D D M M Y Y A A A CR LF
H S M M M P I L O T : T E X T S T R I N G CR LF
H S M M M G L I D E R T Y P E : T E X T S T R I N G CR LF
H S M M M G L I D E R I D : T E X T S T R I N G CR LF 
H S M M M N N N G P S D A T U M : T E X T S T R I N G CR LF
H S M M M C O M P E T I T I O N I D : T E X T S T R I N G CR LF
H S M M M C O M P E T I T I O N C L A S S : T E X T S T R I N G CR LF
H S M M M G P S : T E X T S T R I N G CR LF
It is recommended that the FVU manufacturers hardware and software revision level be included.

3.4 I Record - Fix Extensions

This record defines the extension of the mandatory fix B Record. Only one I record is allowed in each file.

This record has to be located before the first B Record, immediately after the H record.

Format of I Record:

I N N S S F F M M M S S F F M M M CR LF

Description             Size          Element   Remarks

# of  extensions        2 bytes       NN        Valid characters 0-9
Start byte number       2 bytes       SS        Valid characters 0-9
Finish byte number      2 bytes       FF        Valid characters 0-9
Mnemonic                3 bytes       MMM       Valid characters alphanumeric
The byte count starts from the beginning of the B Record starting at 1.

Examples: 

I 0 3 3 0 3 4 G A L 3 5 3 7 F X A 3 8 4 1 R P M CR LF
The above states that the fix record will be appended with the GPS Altitude, the Fix Accuracy and the Engine RPM. 
I 0 1 3 0 3 3 R P M CR LF
The fix record will be appended with the Engine RPM. 
I 0 3 3 0 3 4 G A L 3 5 3 7 F X A 3 8 4 2 T E N CR LF
The fix record will be appended with the GPS Altitude, the Fix Accuracy and the total energy altitude.

3.5 J Record - Extension Index

This record defines the extension K Record.

Format of J Record: 

J N N S S F F M M M S S F F M M M CR LF

Description               Size        Element   Remarks

# of extensions           2 bytes     NN        Valid characters 0-9
Start byte number         2 bytes     SS        Valid characters 0-9 
Finish byte number        2 bytes     FF        Valid characters 0-9        
Mnemonic                  3 bytes     MMM       Valid characters alphanumeric
The byte count starts from the beginning of the K Record starting at 1.

Example: 

J 0 1 0 7 1 1 T E N CR LF
The above J Record defines a K Record which consists of the total energy altitude. The mnemonics are listed at the end of this document.

4.0 Multiple Instance Data Records

4.1 B Record - Fix

This is a fixed size record, the size of which is defined in the I Record. The mandatory data is: UTC, latitude, longitude, fix validity and pressure altitude. It is recommended to include GPS altitude and fix accuracy if they are available.

The format of the mandatory data is:

B H H M M S S D D M M M M M N D D D M M M M M E V P P P P P CR LF 

Description     Size              Element          Remarks

Time            6 bytes           HHMMSS           Valid characters 0-9
Latitude        8 bytes           DDMMMMMN         Valid characters N, S, 0-9
Longitude       9 bytes           DDDMMMMME        Valid characters E,W, 0-9
Fix valid       1 byte            V                A: valid, V:nav warning
Press Alt.      5 bytes           PPPPP            Valid characters -, 0-9
The "fix valid" byte should be taken from the NMEA GPRMC sentence. It is the "Nav receiver status flag" of that sentence. If the GPS receiver does not use the NMEA protocol, then an equivalent flag must be provided.

The format of the recommended data is:

B H H M M S S D D M M M M M N D D D M M M M M E V P P P P P   
G G G G G A A A CR LF 

Description    Size           Element                Remarks

GPS Alt.       5 bytes        GGGGG                  Valid characters -, 0-9
Fix Accuracy   3 bytes        AAA                    Valid characters 0-9
This data may be extended by use of the I Record: 
B H H M M S S D D M M M M M N D D D M M M M M E V P P P P P 
G G G G G A A A R R R R CR LF

Description     Size          Element                Remarks

Engine RPM      4 bytes       RRRR                   Valid characters 0-9
The engine data may be appended without the recommended GPS Altitude and Fix Accuracy provided that the I Record specifies that format.

4.2 C Record - Task

The C Record is used to specify tasks. It may also be used to make task declarations.

Format of C Record:

C D D M M Y Y H H M M S S F D F M F Y I I I I T T T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF
C D D M M M M M N D D D M M M M M E T E X T S T R I N G CR LF

Description          Size            Element            Remarks


Date                 6 bytes         DDMMYY             Valid characters 0-9

Time                 6 bytes         HHMMSS             Valid characters 0-9
Flight Date          6 bytes         FDFMFY             Valid characters 0-9
Task ID              4 bytes         IIII               Valid characters 0-9
# of Task TPs        2 bytes         TT                 Valid characters 0-9
Take-off Lat Lon     17 bytes        DDMMMMMNDDDMMMMME
Start Lat Lon        17 bytes        DDMMMMMNDDDMMMMME
T/P Lat Lon          17 bytes        DDMMMMMNDDDMMMMME
T/P Lat Lon          17 bytes        DDMMMMMNDDDMMMMME
Finish Lat Lon       17 bytes        DDMMMMMNDDDMMMMME
Landing Lat Lon      17 bytes        DDMMMMMNDDDMMMMME
The text string associated with each record is optional but recommended. This is the place to refer to any local turnpoint numbers. The latitude and longitude will be definitive, in the case of confusion.

All the above latitudes and longitudes are mandatory.

The Task ID is the unique number assigned to that task on a day. The first task of the day would be task 0001 the second 0002 etc.

The number of turnpoints is the actual number of turnpoints in the task, e.g. 1 for an Out and Return and 2 for a triangle.

4.3 D Record - Differential GPS

This indicates that differential GPS is being used.

Format of D Record:

D Q S S S S CR LF

Description               Size               Element          Remarks

GPS Qualifier             1 byte             Q                1: GPS, 2:DGPS 
Station ID                4 bytes            SSSS
These parameters correspond to the NMEA GGA GPS quality indication. The absence of a D Record indicates that differential GPS was not used.

4.4 E Record - Events

The E Record must immediately precede a B Record which logs where the event occurred.

Format of E Record:

E H H M M S S I I I T E X T S T R I N G CR LF
E H H M M S S I I I T E X T S T R I N G CR LF
B H H M M S S D D M M M M M N D D D M M M M M E V P P P P P CR LF

Description        Size          Element     Remarks

Mnemonics          3 bytes       III         Valid characters alphanumeric
Official events need a B Record with the same time. It is possible to have several events at the same time.

4.5 F Record - Satellite Constellation

Format of F Record:

F H H M M S S A A B B C C D D CR LF

Description          Size          Element               Remarks

Time                 6 bytes       HHMMSS                Valid characters 0-9
Satellite ID A       2 bytes       AA                    Valid characters 0-Z
The satellite ID will be supplied for each satellite used in the fix calculation. This information corresponds to the NMEA GPGSA data.

This record is optional but will be very beneficial in proving the validity of the file. It should be recorded each time the satellite constellation in use changes.

4.6 K Record - Extension Data

The information in the K Record is specified by the J Record.

As an example, this J Record is used to specify the information in the following K Record:

J 0 7 1 1 T E N CR LF

K H H M M S S 0 0 0 1 0 CR LF
This K Record states that the total energy altitude is 10 meters.

4.7 L Record - Log Book

This record allows FVU manufacturers, users, or official observers to add multiple free format text lines to the flight data records. The Manufacturer ID will be used by the equipment manufacturers to specify data unique to them. In all other cases this field will be a space.

Format of L Record:

L M T E X T S T R I N G CR LF

Description      Size      Element     Remarks

Manufacturer     1 byte    M           Valid characters alphanumeric / space
The L Records will not be covered by the security code for the file. This allows them to be added to the file after the flight has been completed.

Example:

L M T H I S  F L I G H T  W A S  M Y  S E C O N D  1 0 0 0 K M  
A T T E M P T CR LF
L M F R O M  E A G L E  F I E L D CR LF

5.0 Definitions:

Airspeed
The true airspeed of the aircraft in kph.
Alphanumeric
Valid alpha and/or numeric character from the list of valid characters.
Competition Class
The FAI competition class of the aircraft.
Constellation
The list of satellites used to determine the GPS fix. This may to used to verify the validity of the log.
Course
The direction between two points expressed as degrees.
Datum
The GPS datum in use.
Engine Down
The engine and propeller are stowed and not in a position to generate propulsion.
Engine Off
The engine stops generating propulsion.
Engine On
The engine starts to generate propulsion.
Engine RPM
This is a non-binary representation of the engine operation. It may or may not be the actual engine RPM.
Engine Up
The engine is prepared to generate propulsion. In most aircraft this means that the motor pylon is extended or the engine doors are opened.
Equipment Events
These are events generated solely by the FVU, as opposed to pseudo events generated by the analysis of the FVU flight data.
Finish
The end of a task. Usually crossing a finish line or entering a finish photo sector.
Fix Accuracy
The accuracy of the fix expressed in meters. This will be used to determine an area of uncertainty.
FVU Serial Number
This number is allocated by the manufacturer as means of identification of his equipment and likewise be used in the heading record of all transferred data from the FVU to the computer. The identification should consist of one alphanumeric character, which represents the manufacturer.
Glider ID
The registration alphanumeric of the aircraft.
Glider Type
The manufacturer and model number of the aircraft.
GPS Altitude
This is a five numeric character group indicating the GPS altitude in meters.
GPS Connect
The GPS is connected to the FVU.
GPS Disconnect
The GPS is disconnected from the FVU.
Ground Speed The ground speed in kph.
Heading
The direction in which the aircraft is pointed in degrees true.
Latitude
This is a seven character numeric group expressed as two figures for the degrees, two figures for the minutes and three figures representing tenths, hundredths and thousandths of minutes followed by the N or S character.
Longitude
This is an eight character numeric group expressed as three figures for the degrees, two figures for the minutes and three figures representing tenths, hundredths and thousandths of minutes followed by the E or W character.
On Task
The aircraft is attempting a Task.
OO ID -
This number is a number entered into the FVU prior to flight which is used to identify the individual flight on the recording. Normally this should be four alphanumeric characters. Note that this may be used as a confidential code which would be used by an Official Observer.
Photo -
An FAI Turnpoint photograph has been taken.
Pilot Event -
The pilot records an event in time and space. This may represent a number of different occurrences.
Pressure Altitude -
This is a five numeric group indicating the pressure altitude in meters.
RAIM -
Receiver Autonomous Integrity Monitoring - A numeric code is used which indicates when the conditions of RAIM are not satisfied. Normally the code should indicate 0 if RAIM is satisfied and 5 when not. This is used to indicate that the GPS navigation data is no longer valid. It is not expected to be used by glider GPS users in the near term.
Record Extension -
This mechanism allows manufacturers to append information to the minimum required position fix. This information may be ignored by simple flight analysis software, by truncating the analysis of each B Record after 30 characters.
Security -
This data is used to verify that the flight data has not be altered during or since the flight.
Start -
The beginning of a task. Usually crossing a start line or exiting a start photo sector.
Supplemental Data Fix -
The use of external non-satellite data to assist the GPS unit determine the position. Many units have the ability to input pressure altitude to increase the precision of the fix.
Task -
The description of the intended flight.
Textstring
A text string is a sequence of valid characters.
Total Energy Altitude -
The combination of the gliders potential and kinetic energy expressed in altitude in tenths of a meter.
Track -
The true track over the ground which the aircraft has achieved.
Turnpoint Confirmation-
The indication by the navigation equipment, to the pilot, that the aircraft has rounded the TP.

6.0 Valid Characters

The valid characters are the same as in the NMEA standard.

All data shall be interpreted as ASCII characters. The valid character set consists of all printable ASCII characters (Hex 20 to Hex 7E) except those defined as reserved.

The following are valid characters:

      Hex
space 20
Reserved
"     22
#     23
Reserved
%     25
&     26
'     27
(     28
)     29
Reserved
+     2B
Reserved
-     2D
.     2E
/     2F
0     30
1     31
2     32
3     33
4     34
5     35
6     36
7     37
8     38
9     39
:     3A
;     3B
<     3C
=     3D
>     3E
?     3F
@     40
A     41
B     42
C     43
D     44
E     45
F     46
G     47
H     48
I     49
J     4A
K     4B
L     4C
M     4D
N     4E
O     4F
P     50
Q     51
R     52
S     53
T     54
U     55
V     56
W     57
X     58
Y     59
Z     5A
[     5B
Reserved
]     5D
Reserved
_     5F
`     60
a     61
b     62
c     63
d     64
e     65
f     66
g     67
h     68
i     69
j     6A
k     6B
l     6C
m     6D
n     6E
o     6F
p     70
q     71
r     72
s     73
t     74
u     75
v     76
w     77
x     78
y     79
z     7A
{     7B
|     7C
}     7D
Reserved.
The following characters are reserved:

      Hex
CR    0D
LF    0A
$     24
*     2A
,     2C
!     21
\     5C
^     5E
~     7E.

7.0 Mnemonics:

GAL        GPS Altitude
TEN        Total Energy Altitude in meters
HDM        Heading Magnetic
HDT        Heading True
ASI        Airspeed Indicated
AST        Airspeed True
GSP        Ground speed
TRM        Track Magnetic
TRT        Track True
SUP        Supplemental data fix        - External data input to help GPS 
                                          fix (pressure alt)
FXA        Fix  accuracy                - Estimate of fix accuracy in meters
FXT        Fix type                     - GPS or DGPS
RAI        RAIM                         - GPS Parameter
CPH        Carrier phase                - GPS Parameter
EON        Engine on
EOF        Engine off
EUP        Engine up
EDN        Engine down
PHO        Photo
PEV        Pilot event                  - Pilot initiated event
TPC        Turnpoint confirmation       - Equipment generated event
STA        Start
FIN        Finish
DTE        Date
PLT        Pilot
GTY        Glider type
GID        Glider id
CCL        Competition class
DTM        Datum                        - GPS Datum in use
TPL        Turnpoint list
TSK        Task
CNS        Constellation                - Satellites used in the fix
SEC        Security                     - Log security data
DGP        Differential GPS             
REX        Record extension             - Manufacturer defined data  
                                           (Cloud base?)
RPM        Engine rpm
CID        Competition ID
GPS        GPS Engine Type & Revision
GCN        GPS Connect
GDC        GPS Disconnect
OOI        OO ID                        - OO equipment observation  
ONT        On Task                      - attempting POST
CCN        Camera Connect
CDC        Camera Disconnect

8.0 Valid GPS Datums:

ID     Name

000    ADINDAN - Ethiopia, Mali, Senegal, Sudan
001    AFGOOYE - Somalia
002    AIN EL ABD 1970 - Bahrain Island, Saudi Arabia
003    ANNA 1 ASTRO 1965 - Cocos Island
004    ARC 1950 - Botswana, Lesotho, Malawi, Swaziland, Zaire, Zambia, 
                 Zimbabwe
005    ARC 1960 - Kenya, Tanzania
006    ASCENSION ISLAND 1958 - Ascension Island
007    ASTRO BEACON "E" - Iwo Jima Island
008    AUSTRALIAN GEODETIC 1966 - Australia, Tasmania Island
009    AUSTRALIAN GEODETIC 1984 - Australia, Tasmania Island
010    ASTRO DOS 71/4 - St. Helena Island
011    ASTRONOMIC STATION 1952 - Marcus Island
012    ASTRO B4 SOROL ATOLL - Tern Island
013    BELLEVUE (IGN) - Efate and Erromango Islands
014    BERMUDA 1957 - Bermuda Islands
015    BOGOTA OBSERVATORY - Colombia
016    CAMPO INCHAUSPE - Argentina
017    CANTON ASTRO 1966 - Phoenix Islands
018    CAPE CANAVERAL - Florida, Bahama Islands
019    CAPE - South Africa
020    CARTHAGE - Tunisia
021    CHATHAM 1971 - Chatham Island (New Zealand)
022    CHUA ASTRO - Paraguay
023    CORREGO ALEGRE - Brazil
024    DJAKARTA (BATAVIA) - Sumatra Island (Indonesia)
025    DOS 1968 - Gizo Island (New Georgia Islands)
026    EASTER ISLAND 1967 - Easter Island
027    EUROPEAN 1950 - Austria, Belgium, Denmark, Finland, France, Germany,
                       Gibraltar, Greece, Italy, Luxembourg, Netherlands, 
                       Norway, Portugal, Spain, Sweden, Switzerland
028    EUROPEAN 1979 - Austria, Finland, Netherlands, Norway, Spain, 
                       Sweden, Switzerland
029    FINLAND HAYFORD 1910 - Finland
030    GANDAJIKA BASE - Republic of Maldives
031    GEODETIC DATUM 1949 - New Zealand
032    ORDNANCE SURVEY OF GREAT BRITAIN 1936 - England, Isle of Man, 
                       Scotland, Shetland Island,Wales
033    GUAM 1963 - Guam Island
034    GUX 1 ASTRO - Guadalcanal Island
035    HJOESEY 1955 - Iceland
036    HONG KONG 1963 - Hong Kong
037    INDIAN - Bangladesh, India, Nepal
038    INDIAN - Thailand, Vietnam
039    IRELAND 1965 - Ireland
040    ISTS 073 ASTRO 1969 - Diego Garcia
041    JOHNSON ISLAND 1961 - Johnson Island
042    KANDAWALA - Sri Lanka
043    KERGUELEN ISLAND - Kerguelen Island
044    KERTAU 1948 - West Malaysia, Singapore
045    L.C. 5 ASTRO - Cayman Brac Island
046    LIBERIA 1964 - Liberia
047    LUZON - Mindanao Island
048    LUZON - Philippines (excluding Mindanao Island)
049    MAHE 1971 - Mahe Island
050    MARCO ASTRO - Salvage Islands
051    MASSAWA - Eritrea(Ethiopia)
052    MERCHICH - Morocco
053    MIDWAY ASTRO 1961 - Midway Island
054    MINNA - Nigeria
055    North American 1927 - Alaska
056    North American 1927 - Bahamas (excluding San Salvador Island)
057    North American 1927 - Central America (Belize, Costa Rica,
                             El Salvador, Guatemala, Honduras, Nicaragua)
058    North American 1927 - Canal Zone
059    North American 1927 - Canada (including Newfoundland Island)
060    North American 1927 - Caribbean (Barbados, Caicos Islands, Cuba, 
                             Dominican Republic,Grand Cayman, Jamaica, 
                             Leeward Islands, Turks Islands)
061    North American 1927 - Mean Value (CONUS)
062    North American 1927 - Cuba
063    North American 1927 - Greenland (Haynes Peninsula)
064    North American 1927 - Mexico
065    North American 1927 - San Salvador Island
066    North American 1983 - Alaska, Canada, Central America, CONUS, Mexico
067    NAPARIMA, BWI -Trinidad and Tobago
068    NAHRWAN - Masirah Island (Oman)
069    NAHRWAN - Saudi Arabia
070    NAHRWAN - United Arab Emirates
071    OBSERVATORIO 1966 - Corvo and Flores Islands (Azores)
072    OLD EGYPTIAN - Egypt
073    OLD HAWAIIAN - Mean Value
074    OMAN - Oman
075    PICO DE LAS NIEVES - Canary Islands
076    PITCAIRN ASTRO 1967 - Pitcairn Island
077    PUERTO RICO - Puerto Rico, Virgin Islands
078    QATAR NATIONAL - Qatar
079    QORNOQ - South Greenland
080    REUNION - Mascarene Island
081    ROME 1940 - Sardinia Island
082    RT 90 - Sweden
083    PROVISIONAL SOUTH AMERICAN 1956 - Bolivia, Chile, Colombia, 
                                   Ecuador, Guyana, Peru, Venezuela
084    PROVISIONAL SOUTH AMERICAN 1956 - Argentina, Bolivia, Brazil, 
                    Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, 
                    Venezuela, Trinidad, Tobago
085    SOUTH ASIA - Singapore
086    PROVISIONAL SOUTH CHILEAN 1963 - South Chile
087    SANTO (DOS) - Espirito Santo Island
088    SAO BRAZ - Sao Miguel, Santa Maria Islands (Azores)
089    SAPPER HILL 1943 - East Falkland Island
090    SCHWARZECK - Namibia
091    SOUTHEAST BASE - Porto Santo and Madeira Islands
092    SOUTHWEST BASE - Faial, Graciosa, Pico, Sao Jorge, Terceira Islands
093    TIMBALI 1948 - Brunei and East Malaysia (Sarawak and Sabah)
094    TOKYO - Japan, Korea, Okinawa
095    TRISTAN ASTRO 1968 - Tristan da Cunha
096    Reserved For Future Use
097    VITI LEVU 1916 - Viti Levu Island (Fiji Islands)
098    WAKE-ENIWETOK 1960 - Marshall Islands
099    WORLD GEODETIC SYSTEM 1972
100    WORLD GEODETIC SYSTEM 1984
101    ZANDERIJ - Surinam
102    CH-1903 - Switzerland

9.0 Sample File:

(CRLF - line terminator not actual data)

AC00069CRLF
H031194030CRLF
HFPILPILOT: BOB FLETCHERCRLF
HFGTYGLIDER TYPE: SCHLEICHER ASW-24CRLF
HFGIDGLIDER ID: N-84RFCRLF 
HFDAT100GPS DATUM: WGS-84CRLF
HFCIDCOMPETITION ID: 90CRLF
HFCLSCOMPETITION CLASS: STANDARDCRLF
HFGPSGPS: CAMBRIDGE GPS-NAV #0069CRLF 
I033034GAL3537FXA3841RPMCRLF
J010711TENCRLF 
C220694151245220694000102CRLF
C4407100N07249490WTP 101 SUGARBUSH STARTCRLF
C4407100N07249490WTP 101 SUGARBUSH STARTCRLF
C4456330N07230380WTP 15 JAY PEAKCRLF
C4310580N07303470WTP 16 MANCHESTER CENTERCRLF
C4407100N07249490WTP 101 SUGARBUSH STARTCRLF
C4407100N07249490WTP 101 SUGARBUSH STARTCRLF
B1602334407110N0724933WA00480004600200000CRLF
B1602374407121N0724934WA00480004610200000CRLF
D20331CRLF
E160241STRSTARTCRLF
E160241TPHTP PHOTOCRLF
B1602414407126N0724930WA00488004600200000CRLF
B1603044407134N0724928WA00490004760200000CRLF
B1603334407140N0724922WA00490004800200000CRLF
F1603370609123624221821CRLF
B1603374407150N0724920WA00491004810200000CRLF
B1602414407180N0724918WA00491004830200000CRLF
B1602454407212N0724917WA00493004860200000CRLF
K16024800180CRLF
B1602484407220N0724915WA00494004900200000CRLF
B1602524407330N0724912WA00496004910200000CRLF
LCUS STANDARD NATIONALS DAY 1CRLF 
LCFLIGHT TIME: 4:14, TASK SPEED:58KTSCRLF
GREJNGJERJKNJKRE318954785373N4IH43982FJN9248F942389T4335093T509354T543K4FCRLF
GJNJK2489IERGNV3089IVJER5839GO398535J3894N358954983O0934CRLF

Source: http://acro.harvard.edu/SOARING