Swami

There is definitely sattivaka krodham. 

For example since everything associated with Perumaal can be satvikkam only, Narshima avataram  can be example of Satvikka krodham,

Similarly exalted people will exhibit anger for positive purpose, just to make sure things go well, they themselves will not be consumed by anger (it will be conscious and controlled) that is also another example of satvikka krodham.

Rudras (11 in nos) are expansions of Lord Shiva(ref Bhagavat gita) and Lord Shiva is the glance of Maha vishnu during the creation of the universe (ref Brahma samhita)

adiyen

Srimathe Ramanujaya Namaha.

The difference between anger and indignation is significant. You may get angry if the bus is late, but you are not indignant. 

Sri Lakshmi Narasimhar was indignant with hiranyakashipu for his Bhagawada apacharam towards Bhaktha Prahlad Maharaj. He also groped inside the heart of hiranyakashipu to see if the rascal had even an iota of Bhakthi. Bhagawan was hence indignant at hiranyakashipu but well aware and fully controlled.

Srimathe Ramanujaya Namaha.

Sri Velukkudi swamy thiruvadigale saranam.