I saw this documentary and I know exactly what you mean by concertina-ing
It may not be so clear to someone who hasn't seen it, but I like the idea of origami launching the satellites into space.
Should the full stop in line three be a comma? Those two sentences seem to me to be one.
The progression of the poem puzzles me a little - the narrator is lying in bed, then texting to say "I'll be home late" - which made me wonder whose bed s/he was in, though there is no mention of another person apart from the one being texted.
I love the last two lines, partly because of the unexpected rhyme and the iambic rhythm, and partly for the sudden introduction of the symbolic animals, and partly for the puzzle of why they are important