I'm still building my Minmus base, Rura Penthe. I decided to run two missions at once. One to launch a triplet of ore tank modules and one to launch an orange fuel tank storage module.
As you can see I launched the two missions pretty much two days apart with the idea of giving me two days grace to orbital maneuver and landing the Ore Tanks on Minmus etc.
Both had the same dV requirements naturally and I set up maneuvers to capture into Minmus Orbit. However:
Instead of two days grace I've ended up with two hours and indeed the second mission is arriving before the first ( taking two days and two hours less to arrive than the first mission!)
I'm sure there's a logical explanation for this. Can someone tell me what's happened?