EchoStar XXI communications satellite
Separated spacecraft mass:
Approx. 6,900 kg (15,100 lbs.)
Proton Breeze M
705,000 kg (1,554,000 lbs), including payload
58.2 m (191 ft)
June 8, 2017
23:45:47 Reston (June 7)
21:45:47 Denver (June 7)
20:45:47 Palo Alto (June 7)
Baikonur Cosmodrome, Kazakhstan
Launch Pad 24, Launch Complex 81
EchoStar, Englewood, Co.
EchoStar Mobile Limited
SSL, Palo Alto, Ca.
Khrunichev State Research and Production Space Center
Moscow, Russian Federation
Launch Services Provider:
International Launch Services, Reston, Va.
EchoStar XXI is a state-of-the-art S-band satellite designed to
provide mobile connectivity throughout Europe. The spacecraft, based on SSL’s 1300 bus, will be located at the 10.25°East orbital slot. EchoStar subsidiary EchoStar Mobile Limited, an EU-wide licensee for an integrated mobile satellite service network with a complementary ground component, will utilizea portion of the capacity on EchoStar XXI to provision its next-generation, all IP-enabled mobile communications network.
__ S-Band mobile user link and Ka-Band gateway link
__Orbital location: 10.25 degrees East
__Anticipated service life: 15 years
The Proton M launch vehicle, utilizing a 5-burn Breeze M mission design, will lift off from Pad 24 at the Baikonur Cosmodrome in Kazakhstan, with theEchoStar XXI satellite on board. The first three stages of the Proton will use a standard ascent profile to place the orbital unit (Breeze M upper stage and theEchoStar XXI satellite) into a sub-orbital trajectory. From this point in the mission, the Breeze M will perform planned mission maneuvers to advance theorbital unit first to a nearly circular parking orbit, then to an intermediate orbit, followed by a transfer orbit, and finally to a geosynchronous transfer orbit.Separation of the EchoStar XXI satellite is scheduled to occur approximately 9 hours, 13 minutes after liftoff.
Target Orbit at Separation:
Apogee: 35,786 km (22,236 miles)
Perigee: 2271 km (1411 miles)
Inclination: 30.6 degrees
Approximately 9 hours, 13 minutes after liftoff
ILS Mission Statistics:
__94th ILS Proton launch
__413th Proton launch overall
__1st ILS Proton launch of 2017
__6th EchoStar Satellite Launched on ILS Proton
__29th SSL satellite launched on a Proton
ILS ECHOSTAR XXI LIVE LAUNCH BROADCAST
Begins at 11:30 PM ET, June 7L
aunch is at 11:45 pm ET, June 7
Broadcast ends at 12:15 AM ET, June 8
Live webcast at http://echostarxxi.imgondemand.com/ will begin approximately 30 minutes before liftoff.
Full Program: US Domestic HD Coordinates
7 June 2200 – 0015 (June 8th Eastern)
AMC-15, transponder 10
Uplink frequency 14213.500 V
Downlink frequency 11913.5 H
Data rate: 16.222
Symbol rate 7.45
DVB Modulation: DVB S2 (8PSK)
pilot on roll off 20 % H.264 (MPEG 4)
The live broadcast can also be seen on DISH HD Channel 89 or DISH SD Channel 88.
Follow us on Facebook @ilslaunch.com, Twitter: #ILSlaunch, #EchoStarXXI, Instagram: ilslaunch
Live webcast at http://echostarxxi.imgondemand.com/ will begin approximately 30 minutes before liftoff. General mission information and launch status updates are available at the website (ilslaunch.com), twitter (#ILSLaunch) and Facebook (@ilslaunch).
Karen Soriano, Director of Communications and Customer Relations, International Launch Services, Reston, Va.; +1-571-633-7549; mobile: +1-571-282-5195; firstname.lastname@example.org, Visit the ILS web site at www.ilslaunch.com.