[Launch Alert] L-2 Media Update

[Launch Alert]

The following are excerpts from an L-2 media update from the United Launch Alliance regarding Friday evening's launch:

Good evening - everything is progressing toward the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office. The mission is set to lift off on a Delta IV Heavy rocket on Friday, Dec. 7 from Space Launch Complex-6 at Vandenberg Air Force Base in California. Today’s forecast shows a 40 percent chance of favorable weather conditions for launch. The launch time is 8:19 p.m. PT.

See our Live Launch Updates for official and timely information during the countdown to liftoff here:

https://www.ulalaunch.com/missions/delta-iv-nrol-71


Launch Forecast Summary:

Overall probability of violating weather constraints: 60%
Primary concerns: Ground Winds

Overall probability of violating weather constraints for 24 hour delay: 40%
Primary concern: Ground Winds


Launch Broadcast
Live broadcast coverage of launch will begin at 7:59 p.m. PT on Dec. 7.
Live launch updates and webcast available at:  www.ulalaunch.com


Launch Broadcast Satellite Coordinates + Webcast
ALL TIMES PACIFIC

FRIDAY, DECEMBER 7
BARS + TONE – 7:28 P.M.
PROGRAM START – 7:59 P.M.
LAUNCH – 8:19 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 — 5,956.000 MHz (Horizontal)
DOWNLINK — 3,731.000 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