# Running JEDI with ROPP operator

**URL:** <https://forums.jcsda.org/t/running-jedi-with-ropp-operator/257>\
**Category:** JEDI\
**Created:** [January 19, 2022, 11:41pm UTC](https://forums.jcsda.org/t/running-jedi-with-ropp-operator/257 "2022-01-19T23:41:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mjm](https://avatars.discourse-cdn.com/v4/letter/m/c6cbf5/32.png) [@mjm](https://forums.jcsda.org/u/mjm)\
**Post date:** [January 19, 2022, 11:41pm UTC](https://forums.jcsda.org/t/running-jedi-with-ropp-operator/257/1 "2022-01-19T23:41:51Z")

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I have been running DA experiments for my goal of assimilating GNSS RO using both refractivity and bending angle operators. I am having problems getting the ROPP operators to work and am in need of some assistance.

First off, I have agreed to the license agreement for ROPP and emailed the people at ROM SAF to confirm and they informed me that there is nothing more I need to do and I am cleared to use ROPP with JEDI.

Now how do I actually use the ROPP operators in JEDI? Do I have to do something special when compiling? I compiled as I usually do for my other DA experiments (from the jedi-gnu-openmpi-dev-latest.sif container) that used the NBAM and Refractivity operators and simply selected the ROPP1D operator at runtime and I got empty results with no DA assimilation performed.

Can someone please let me know the steps to get the ROPP operators working on my system?

Thanks,  
Michael