ISIS Install Guide needs to be updated
The currently contains incorrect information in regard to the location of Chandrayaan1 mission data.
/data/chan1/ needs to be changed to data/chandrayaan1
I see that the default IsisPreference file contains both Chan1 (pointing to $ISIS3DATA/chan1) and Chandrayaan1 ($ISIS3DATA/chandrayaan1) and that /data/chan1 is linked to /data/chandrayaan1, but an outside user (#5214) has recently run into an issue with ingesting mission data so something may not be working properly. Either way, it seems to me the documentation might need updating.
Also, Rossetta and perhaps some other missions we currently support may need to be added (see #5207).