Rocket: Delta 4
Variant: Medium+ 4,2
Payload: AFSPC 4
Date: July 28, 2014
Period: 6-10 p.m. EDT
Site: SLC-37, Cape Canaveral, Florida

Story: Our preview

Launch timeline

ULA press kit

GSSAP fact sheet

ANGELS fact sheet

Delta 4 family

D4 flight history

D4 illustration

Delta 4 facts

Photo guide

Our Delta archive

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Welcome to Spaceflight Now's live coverage of the Delta 4 rocket launching the AFSPC No. 4 mission. Text updates will appear automatically; there is no need to reload the page. Follow us on Twitter.