 So it's a really interesting story that we had a very challenging customer in China and in China It's very hard to get good weather conditions It's often overcast and cloudy and the problem they had was extracting buildings when there was deep shadows So we really brainstormed this as to how we could do better And the idea we came up with was if we add a LiDAR system to our imaging system You know a LiDAR is active it can see into the shadows if we bring these two technologies together It's an elegant way to solve the problem So that's that's how the first CityMapper came to be was really to solve this customer challenge So the CityMapper 2 it's kind of the next generation of the original where it's 40% more efficient much higher resolution Imaging so you can fly a lot less To collect the same area or you can fly at a much higher resolution if you want You also have the benefit of better low light performance So the flight conditions are wider and you can also fly much faster, so it's all about efficiency It's all about collecting more data quickly So in the past what would happen is a lot of customers would have to decide if they wanted to fly imaging or LiDAR because of the high cost Right and with the CityMapper and the CityMapper 2 because we combine into one instrument They don't have to choose they fly once they get both product streams And so it's a much cheaper way much more efficient way And then they also unlock the potential of having both data sets collected at the same time to do some very very interesting analytics that they couldn't do before The biggest challenge right now for urban mapping where the CityMapper 2 is used is there's a lot of air Airspace restrictions, you know we live in a in a complex world now And so a lot of cities like Moscow you have to fly three kilometers or higher You cannot go lower than this So the CityMapper 2 allows you to fly at these altitudes and still get very high resolution data so that you can do the project So that the one here that was really unique and was a real challenge for the team was to still get the very high speed Performance we had to come up with a mechanical forward motion compensation for the imager and this was a challenge But what's interesting is you know we had in our company history 20 years ago We did this with film so we applied some of those same concepts to digital and that's how we got the CityMapper 2 fantastic performance