wgetorb - Combining powers of wget and getorb

getorb is a software package written by Remko Scharroo and currently maintained by Eelco Doornbos, to read Orbital Data Record (ODR) files and interpolate orbits. getorb requires the ODR files to be located in the hard drive. wgetorb is a simple bash script that can work with files stored on a public http or ftp site.

For locally stored ODR files wgetorb does nothing but relay the parameters to the getorb package. If the given path is not a local directory, then the path is assumed to be a URL and passed to wget to download the arclist file.

Arclist file is a special file containing information about the start and end times of the orbit information stored in each ODR file. wgetorb then uses the orbit start date to find the particular ODR file, which is again downloaded by wget. All these files are downloaded to the current directory, and the wget error messages are output to wgetorb.log, again in the current directory.

This script can be renamed to getorb and placed in a prior location to real getorb in environment path variable. This can be used to direct getorb calls within DORIS to this script and process interferograms without downloading orbits.

You can download wgetorb from here: http://www.osmanoglu.org/supplement/wgetorb-combining-powers-of-wget-and-getorb/wgetorb

References

• GETORB 2.3.2 Read Me, DEOS, TU-DELFT
• ERS and Envisat Precise Orbits, DEOS, TU-DELFT