First Of Spacemen Alone Docking Moon Lander With Dignity

[MOBIUS]

This looks like SOLEMNLY, but I can't see the parsing.

[Lie-in King]

Solemnly - 's(pacemen; first) + only (alone)' (docking; containing) 'L(unar) E(xcursion) M(odule)'

[MOBIUS]

Thank you. I was looking at SOLE for ALONE and a docked version of MOON. Shows how easy it is to beetle off on the wrong track!

[fiction-factory]

And there was also solely to throw us off the track

[Spoffy]

I wonder whether anyone (other than the setter) would consider that 'alone docking moon lander' indicates that ONLY should contain LEM. To 'dock' means to place in a dock, so 'Captain docking ship' tells us that the ship will be found within the dock, not within the captain.