2 hours to JWST Launch
Countdown timer: https://jwst.nasa.gov/content/webbLaunch/countdown.html (may differ from actual)
Launch Livestream: https://youtube.com/watch?v=21X5lGlDOfg
NASA Livestream: https://youtube.com/watch?v=21X5lGlDOfg
Where is Webb?
Shows location, trajectory, deployment(s), temperature sensors, and more.
#JWST has passed the orbit of the Moon.
Over the next two days, sunshield deployment.
#JWST has deployed the fore and aft sunshield pallets.
That's the first of several steps in fully deploying the sunshields, but a big step.
#WhereIsWebb shows current position and status:
#JWST Tower assembly has been deployed, and temperature data are available.
See the #WebbBlog:
The hot-sde temps are lower than I'd expected, about -6 and 9 C (20 and 49F). Cold side is closer to my expectations --- the primary mirror is at -57, and the radiator at -153 C (-71 & -244 F).
Still have most of the sunshield deployment ahead.
#JWST has covered over half the distance to L2.
It's still got about 22 days travel time, as it's slowing down as it gets further out, effectively "rolling uphill".
Sunshield tensioning coming up next AFAIU.
@dredmorbius https://www.space.com/james-webb-space-telescope-video-image-virtual-telescope-project if you haven't seen it.
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