JEITA CP-3451
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4.6.6
GPS Attribute Information
The attribute information (field names and codes) recorded in the GPS Info IFD is given in Table 12, followed by an
explanation of the contents.
Table 12 GPS Attribute Information
Tag ID
Tag Name
Field Name
Dec
Hex
Type
Count
A. Tags Relating to GPS
GPS tag version
GPSVersionID
0
0
BYTE
4
North or South Latitude
GPSLatitudeRef
1
1
ASCII
2
Latitude
GPSLatitude
2
2
RATIONAL
3
East or West Longitude
GPSLongitudeRef
3
3
ASCII
2
Longitude
GPSLongitude
4
4
RATIONAL
3
Altitude reference
GPSAltitudeRef
5
5
BYTE
1
Altitude
GPSAltitude
6
6
RATIONAL
1
GPS time (atomic clock)
GPSTimeStamp
7
7
RATIONAL
3
GPS satellites used for measurement
GPSSatellites
8
8
ASCII
Any
GPS receiver status
GPSStatus
9
9
ASCII
2
GPS measurement mode
GPSMeasureMode
10
A
ASCII
2
Measurement precision
GPSDOP
11
B
RATIONAL
1
Speed unit
GPSSpeedRef
12
C
ASCII
2
Speed of GPS receiver
GPSSpeed
13
D
RATIONAL
1
Reference for direction of movement
GPSTrackRef
14
E
ASCII
2
Direction of movement
GPSTrack
15
F
RATIONAL
1
Reference for direction of image
GPSImgDirectionRef
16
10
ASCII
2
Direction of image
GPSImgDirection
17
11
RATIONAL
1
Geodetic survey data used
GPSMapDatum
18
12
ASCII
Any
Reference for latitude of destination
GPSDestLatitudeRef
19
13
ASCII
2
Latitude of destination
GPSDestLatitude
20
14
RATIONAL
3
Reference for longitude of destination
GPSDestLongitudeRef
21
15
ASCII
2
Longitude of destination
GPSDestLongitude
22
16
RATIONAL
3
Reference for bearing of destination
GPSDestBearingRef
23
17
ASCII
2
Bearing of destination
GPSDestBearing
24
18
RATIONAL
1
Reference for distance to destination
GPSDestDistanceRef
25
19
ASCII
2
Distance to destination
GPSDestDistance
26
1A
RATIONAL
1
Name of GPS processing method
GPSProcessingMethod
27
1B
UNDEFINED
Any
Name of GPS area
GPSAreaInformation
28
1C
UNDEFINED
Any
GPS date
GPSDateStamp
29
1D
ASCII
11
GPS differential correction
GPSDifferential
30
1E
SHORT
1
A. Tags Relating to GPS
GPSVersionID
Indicates the version of GPSInfoIFD. The version is given as 2.2.0.0. This tag is mandatory when GPSInfo tag is
present. Note that the GPSVersionID tag is written as a different byte than the Exif Version tag.
Tag
=
0 (0.H)
Type
=
BYTE
Count
=
4
Default
= 2.2.0.0
2.2.0.0
=
Version 2.2
Other
=
reserved
GPSLatitudeRef
Indicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south
latitude.
Tag
=
1 (1.H)