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L-1 Media Update: ULA Delta IV Heavy NROL-71 Set to Launch on Dec. 19

Status Report From: United Launch Alliance
Posted: Tuesday, December 18, 2018

Everything continues to progress towards the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office for lift off on Wednesday, Dec. 19 from Space Launch Complex-6 at Vandenberg Air Force Base in California. The forecast is for a 80 percent chance of favorable weather conditions for launch. The launch time is 5:44 p.m. PST.
 
Credentialed Media Covering Launch
 
Credentialed media covering launch should meet at the Vandenberg South Gate no later than 3:45 p.m. PST on Wednesday, Dec. 19.  
 
Launch Forecast Summary:
Overall probability of violating weather constraints: 20%
Primary concerns: Ground Winds
 
Launch Broadcast
Live broadcast coverage of launch will begin at 5:24 p.m. PST on Dec. 19.
Live launch updates and webcast available at: www.ulalaunch.com
 
*Note: Satellite frequencies changed from previous attempts
 
ALL TIMES PACIFIC
 
WEDNESDAY, DECEMBER 19
BARS + TONE – 4:53 P.M.
PROGRAM START – 5:24 P.M.
LAUNCH – 5:44 P.M
 
DIGITAL SATELLITE C-BAND DOWNLINK
HD FORMAT
SATELLITE — G3
TRANSPONDER — 2
BAND — C-BAND DIGITAL
ORBITAL POSITION — 95°W
HD BANDWIDTH — 18 MHz (HALF TRANSPONDER)
UPLINK — 5,974.000 MHz (Horizontal)
DOWNLINK — 3,749.000 MHz (Vertical)
SYMBOL RATE — 13
FEC — ¾
DATA RATE — 17.9705
DVBS – QPSK
MPEG 2
AUDIO EMBEDDED
 
Webcast available at www.ulalaunch.com and www.youtube.com/unitedlaunchalliance

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