Returns latitude and longitude coordinates for an AVHRR LAS image
The subcommand -FULL returns nine latitude and longitude coordinates (upper left, upper nadir, upper right, center left, center nadir, center right, lower left, lower nadir, and lower right) of an AVHRR LAS image. The number of lines, number of samples, and the direction of the pass are also returned. This information is relative to the original AVHRR pass even if the AVHRR LAS image has been windowed.The subcommand -FOUR calculates and returns the four latitude and longitude corner coordinates (upper left, upper right, lower left, and lower right) of the image. These coordinates represent the latitude/longitude locations at the AVHRR image corners.
- IN
- Input image. The name of the AVHRR LAS image for which coordinate information is to be returned.
- ULLAT
- Upper left latitude. The original AVHRR pass upper left latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- ULLON
- Upper left longitude. The original AVHRR pass upper left longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- UNLAT
- Upper nadir latitude. The original AVHRR pass upper nadir latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- UNLON
- Upper nadir longitude. The original AVHRR pass upper nadir longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- URLAT
- Upper right latitude. The original AVHRR pass upper right latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- URLON
- Upper right longitude. The original AVHRR pass upper right longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CLLAT
- Center left latitude. The original AVHRR pass center left latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CLLON
- Center left longitude. The original AVHRR pass center left longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CNLAT
- Center nadir latitude. The original AVHRR pass center nadir latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CNLON
- Center nadir longitude. The original AVHRR pass center nadir longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CRLAT
- Center right latitude. The original AVHRR pass center right latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- CRLON
- Center right longitude. The original AVHRR pass center right longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LLLAT
- Lower left latitude. The original AVHRR pass lower left latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LLLON
- Lower left longitude. The original AVHRR pass lower left longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LNLAT
- Lower nadir latitude. The original AVHRR pass lower nadir latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LNLON
- Lower nadir longitude. The original AVHRR pass lower nadir longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LRLAT
- Lower right latitude. The original AVHRR pass lower right latitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- LRLON
- Lower right longitude. The original AVHRR pass lower right longitude is retrieved from the AVHRR LAS DDR and returned in this parameter's real TAE variable.
- NLINES
- Number of lines. The number of lines in the original AVHRR pass is retrieved from the AVHRR LAS DDR and returned in this parameter's integer TAE variable.
- NSAMPS
- Number of samples. The number of samples in the original AVHRR pass is retrieved from the AVHRR LAS DDR and returned in this parameter's integer TAE variable.
- ADFLAG
- Ascending/descending direction flag. The direction of the original AVHRR pass is retrieved from the AVHRR LAS DDR and returned in this parameter's integer TAE variable. Valid return values are:
= 1: Ascending pass = -1: Descending pass
- IN
- Input image. The name of the AVHRR LAS image for which coordinate information is to be returned.
- ULLAT
- Upper left latitude. The upper left latitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- ULLON
- Upper left longitude. The upper left longitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- URLAT
- Upper right latitude. The upper right latitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- URLON
- Upper right longitude. The upper right longitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- LLLAT
- Lower left latitude. The lower left latitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- LLLON
- Lower left longitude. The lower left longitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- LRLAT
- Lower right latitude. The lower right latitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
- LRLON
- Lower right longitude. The lower right longitude is calculated for the AVHRR LAS image and returned in this parameter's real TAE variable.
The nine latitude/longitude coordinates are retrieved from AVHRR LAS DDR and returned in the appropriate TAE variables. The number of lines, number of samples, and direction of the original AVHRR pass are also returned in the appropriate TAE variables.
Only the four latitude/longitude corner coordinates for the AVHRR LAS image ALASKA are calculated and returned in the appropriate TAE variables.
The -FULL subcommand retrieves the size of the image, direction of the pass, and nine latitude/longitude coordinates from the AVHRR LAS DDR. This information is returned in the specified TAE name parameters.The -FOUR subcommand calculates the four corner latitude/longitude coordinates for the AVHRR LAS image. These coordinates are returned in the specified TAE name parameters.
A fatal error was encountered during processing. The error message displayed immediately preceding this message is the specific error encountered.