Mission: JAXA Supply to International Space Station
Rocket: H-2B (JAXA)
Spaceport: Tanegashima Space Center
Launch time: Coverage begins at 21:30 UTC / 17:30 EST for (I believe) a 21:52 UTC / 17:52 EST launch. The listed time is 02:52:27 Local Japan Time.
Good luck JAXA!
Thanks to Space Videos for the feed!