performance specification digital terrain elevation data
performance specification digital terrain elevation data performance specification digital terrain elevation data
MIL-PRF-89020BCD-ROM.c. User Header Label (UHL). The UHL is used for magnetic tape andField Length CharacterField Contents In Characters Start DescriptionUHL 3 1 Recognition sentinel.1 1 4 Fixed by standard.DDDMMSSH 8 5 Longitude of origin (lowerleft corner of data set;full degree value; leadingzero(s) for all subfields:degrees, minutes andseconds). H is theHemisphere of the data.DDDMMSSH 8 13 Latitude of origin (lowerleft corner of data set;full degree value; leadingzero(s) for all sub fields:(degrees, minutes andseconds). H is theHemisphere of the data.SSSS 4 21 Longitude data interval intenths of seconds.SSSS 4 25 Latitude data interval intenths of seconds.0000-9999 orNot Available (NA)4 29 Absolute Vertical Accuracyin Meters. (With 90%assurance that the linearerrors will not exceed thisvalue relative to mean sealevel (Right justified)).S - Secret 3 33 Security code. (LeftC - ConfidentialJustified)U - UnclassifiedR - Restricted22
MIL-PRF-89020BField Length CharacterField Contents In Characters Start DescriptionUnique Reference 12 36 *Unique reference numberNumber of longitudelines4 48 Count of the number oflongitude (profiles) linesfor a full one-degree cell.Count is based on the Levelof DTED and the latitude zoneof the cell. (See Table I,II and III).Number of latitudepoints4 52 Count of the number oflatitude points per longitudeline for a full one-degreecell. ( e.g. 1201 for DTED1,3601.for DTED2).Multiple accuracy 1 56 0 - Single1 - MultipleReserved 24 57 Unused portion for futureuse.Note: *These fields, to be defined by producer, may be left blank.d. Data Set Identification (DSI) Record. The DSI is used for magnetictape and CD-ROM.Fixed Length = 648 ASCII CharactersField Length CharacterField Contents In Characters Start DescriptionDSI 3 1 Recognition Sentinel.S - Secret 1 4 Security ClassificationC - ConfidentialCodeU - UnclassifiedR - Restricted2 5 Security Control andRelease Markings. For DoDuse only.27 7 Security HandlingDescription. Other securitydescription. (Free text orblank filled).23
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- Page 45: STANDARDIZATION DOCUMENT IMPROVEMEN
MIL-PRF-89020BField Length CharacterField Contents In Characters Start DescriptionUnique Reference 12 36 *Unique reference numberNumber of longitudelines4 48 Count of the number oflongitude (profiles) linesfor a full one-degree cell.Count is based on the Levelof DTED and the latitude zoneof the cell. (See Table I,II and III).Number of latitudepoints4 52 Count of the number oflatitude points per longitudeline for a full one-degreecell. ( e.g. 1201 for DTED1,3601.for DTED2).Multiple accuracy 1 56 0 - Single1 - MultipleReserved 24 57 Unused portion for futureuse.Note: *These fields, to be defined by producer, may be left blank.d. Data Set Identification (DSI) Record. The DSI is used for magnetictape and CD-ROM.Fixed Length = 648 ASCII CharactersField Length CharacterField Contents In Characters Start DescriptionDSI 3 1 Recognition Sentinel.S - Secret 1 4 Security ClassificationC - ConfidentialCodeU - UnclassifiedR - Restricted2 5 Security Control andRelease Markings. For DoDuse only.27 7 Security HandlingDescription. Other securitydescription. (Free text orblank filled).23