Building Out Kerbol 39: Wait... what day is it?
Gene: There's no reason to have two survey probes at Minmus, right? It'll be a while before the other one arrives, you're sure you don't want to keep this one around?
Bill: There's no need. The lab is going to be busy enough with the other data from here until the ion probe makes it here.
Irgan: I just set off for that Satellite upgrade. It feels a little weird leaving the Clubhaus after all this time...
Irgan: Huh, look at that. We must be right at our ascending node with Moho...
Gene: EVERYONE SCRAMBLE! THIS IS NOT A DRILL!!!
Irgan: What's the big deal? It's not like it's a transfer window.
Bob: Moho doesn't have transfer windows, not really. Between the inclination and the eccentricity there's only one good place in its orbit to meet it, right where a ship would hit its orbit if we launched right now. We either launch in the next day or so, or hold off for a year.
A few minutes later:
Gene: Bill I hope your design was final because it is now!
Bill: I mean... It should theoretically be able to get there. And have a strong signal. I hope...
Soon after:
Gene: Next up!
Bill: I did have time to revise the survey sat a bit. So long as that solar array can get it through the big burn here, we should be good.
Gene: The relays are locked in for a burn tomorrow.
Gene: And the surveyor. Sure hope your probe can handle an 18 minute burn, Bill.
Irgan: So that's a relay network and a science probe for Moho, right? What are we looking at for the other planets?
Bill: Just link your console back to the Clubhaus and pop open the maneuver tool. It should be able to spit out some basic launch window estimates.
Irgan: Huh, how did I never know it could do that?
Gene: It isn't exactly perfect, but for everywhere but Moho it should be close enough for figuring out our schedule. This year is all about Moho and Duna. Next year is Eve, Jool, and Eeloo.
Irgan: And then Dres after that?
Gene: Where?
(Editor's note: Yeah, I'm going to have to double check those transfer windows. And I don't know why the trip duration to Dres is 0, but it's funny. Considering that Dres isn't real. And it better not be, because a trip of 0hrs implies it's coming to us.
Transfer windows are one of the things I really like about how space travel works, and one I wish more science fiction leaned into. Because it really is a different world if our cities and countries and towns are minutes away from each other by phone, weeks or months away by ship, and in places where the path to reach them only opens once every three years.
Imagine being a dock worker on Phobos and having to deal with 780 days worth of traffic from Earth over the course of maybe two weeks... Imagine the party afterwards!)














