Mike’s Tweets

Post Landing Look at the Chang’e 3 Trajectory

The Chang’e 3 Lander is on the surface! What an amazing accomplishment for our Chinese friends. Now that it’s down, let’s take a look back at our guesses of the trajectory and see what we got wrong, and what we know about the real trajectory now that we know the landing site and the time […]

One last guess at the Chang’e 3 Landing

With our last post, we identified the overall nature of the Chang’e 3 trajectory, now let’s try to narrow it down a bit to see what the landing approach might look like.

Firstly, we should add to the previous post. You might have noticed in the last posting:

 

Chang’e 3 LOI Geometry (Click […]

Guessing the Chang’e-3 trajectory [Where is Chang’e-3 now]

Our Chinese colleagues launched a lander to the Moon on December first, but unfortunately they have chosen not to publicly share where their spacecraft is. A few days ago there were several TLEs in Spacetrack associated with the Chang’e 3 launch, all of which didn’t appear to be associated with it at first glance (wrong […]