Drop rate for ivara systems

[(PSN)Shanetra09]

It's the only piece I need and I've followed the wiki and gone to where it's said and done 60+ runs with nothing in sight. What are the drop rates? Also if possible state where exactly you went. 

[TARINunit9]

It's going to be one of the following:
10%
2.5% <- Most likely
0.5%

As for where systems drop, go to all the easiest Spy missions you can find, and do them in rotation so you don't get bored as quickly. Or syndicate Spy missions, because for some reason Syndicates always reward level 10 items regardless of the enemy level

Edited March 26, 2016 by TARINunit9

[phoenix1992]

Do mind that Nightmare spy is also a factor. This may interfere with your hunting as well (for me it was on plus, but it may be a lucky stroke)

[RideaTear]

I got her parts from Hapke-Ceres, Shklovsky- Phobos, and Titan- Saturn. I stuck with Grineer because I can run through them faster. It doesn't really matter what node you do though, just as long as they are within the correct tier. Since I've built her I've found an additional chassis on Pavlov-Earth and the helmet on Lex- Ceres. Just keep at it, you'll get her eventually.

[felixsylvaris]

Suisei, Mercury - funny thing is that i just run there without intencion to get Ivara or anything.

The same goes with BP from Leomedia Neptune.

Butt....

I run 20+ Aegaeon Saturn, and various combinations of Phobos and Sedna. And still no Chassis.

Maybe recent patch derped Ivara droprates.