Orbits and other auxiliary data

I use Delft orbital data (ODR) which is available from here. don't forget to use the precise version and to download all .ODR files (make sure it is not .odr after downloading) and the arclist. also, download and install getorb software and link or move the executables to the ROI_PAC binaries directory.

I also use DORIS orbital data for Envisat which is available from here. but will require a user and password. the DORIS data is used when no ODR data is yet to be available for new Envisat images.

for Envisat I also use auxiliary data available from here.

in my lab, all the orbital data is in ~/ROI_PAC_3_0/Delft with directory tree as follows:

in ~/ROI_PAC_3_0/Delft I put the Envisat auxiliary data (INS and XCA files)

• doris/Envisat/YYYYMM contains orbital data for the year (YYYY) and month (MM)
• Envisat contains Envisat Delft orbit data (.ODR .res arclist files)
• ERS1 contains ERS1 Delft orbit data (.ODR .res arclist files)
• ERS2 contains ERS2 Delft orbit data (.ODR .res arclist files)

the files must be updated from time to time as more images are added to the list.