Proton launches two Russian communications satellites
Proton launches two Russian communications satellites WASHINGTON — The first Proton launch of the year took place July 30 carrying two satellites for the Russian Satellite Communications Company. Proton lifted off at 5:25 p.m. Eastern from Russia’s Baikonur Cosmodrome in Kazakhstan on an 18-hour mission to deploy the geostationary satellites, Express-80 and Express-103, according to Roscosmos. The launch was originally scheduled for March, but was delayed to replace problematic components on the rocket. A one-day delay preceded the launch to allow for additional checks on the vehicle, according to Proton manufacturer Khrunichev. Russia planned three Proton launches for 2020 at the beginning of the year. It’s not clear if or how the three-month delay will impact the schedule of future missions. RSCC ’s Express-80 satellite is scheduled to separate from Proton’s Briz-M upper stage 17 hours and 59 minutes after liftoff. The satellite carries 20 transponders in...