Back to Starlink launches edition

Livestream: https://www.youtube.com/watch?v=KU6KogxG5BE
Launch: Wednesday, July 8 11:59 AM EDT / 15:59 UTC
Probability of violating weather constraints: 40% (https://www.patrick.af.mil/Portals/14/Weather/Falcon%209%20Starlink-L9%20L-1%20Forecast-%208%20Jul%20Launch.pdf?ver=2020-07-07-090330-453)
Backup launch: ~+48hr
Launch vehicle: SpaceX Falcon 9 with first stage B1051.5 (prior launches: Starlink-6, Starlink-3, RADARSAT, DM-1)
Launch pad: LC-39A, Kennedy Space Center, Florida, USA
Fairings: New
Fairing recovery: On fairing recovery vessels 'Ms. Tree' & 'Ms. Chief'
First stage landing: On droneship 'Of Course I Still Love You'

Payload: 57 SpaceX Starlink satellites & Spaceflight Industries Blacksky 5 + 6 satelites
Payload mass & destination orbit: ~15,600 kg (~260 kg / Starlink sat); 210 x 366 km @ ~53°; Starlink sats will eventually orbit-raise to 550 km
Starlink-L9 TLE: https://www.celestrak.com/NORAD/elements/supplemental/starlink-10.txt
>https://www.starlink.com
>https://www.spacex.com/launches/index.html
>https://space.skyrocket.de/doc_sdat/starlink-v1-0.htm
>https://spacenews.com/blacksky-launching-two-satellites-on-june-starlink-mission/
>https://space.skyrocket.de/doc_sdat/blacksky-global.htm
>https://spaceflight.com/ready-for-the-sxrs-1-starlink-launch/
>https://www.wmo-sat.info/oscar/satellites/view/795
>https://en.wikipedia.org/wiki/Spaceflight_Industries#BlackSky

Launch viewing guide for Florida: http://www.launchphotography.com/Delta_4_Atlas_5_Falcon_9_Launch_Viewing.html
SpaceX twitter: https://twitter.com/SpaceX
SpaceX launch statistics: This will be the 56th landed first stage, 37th re-flight of a first stage, and 89th Falcon 9 launch. It is the 12th SpaceX launch of 2020.