> positioned in a triangular formation 2.5km on a side so that the craft will be nicely isolated and therefore deliver more reliable results
The LISA project site (https://www.elisascience.org/articles/elisa-mission/elisa-technology) says:
"LISA will consist of three spacecraft in Earth-like orbits around the Sun. They will fly million kilometers apart in an equilateral triangle formation."
Where do these 2.5km come from?
Biting the hand that feeds IT
