The Delta IV Heavy rocket with the NROL-71 spy satellite for the US National Intelligence Agency is located at the launch site of Vandenberg Air Base (California). Picture received December 19, 2018
In the United Launch Alliance reported that the launch of the US secret satellite again postponed. Now start is planned not earlier than January 6th. On December 30, the Delta IV Heavy rocket was supposed to send a secret NROL-71 mission from Vandenberg Air Force Base (California). The launch had to be postponed several times due to missile problems. The penultimate case fell on December 19th. The reason was the alleged leakage of hydrogen at the accelerator.
A new launch is planned to be carried out not earlier than January 6 from the launch complex 6 Vandenberg Air Force. There have also been attempts to start on December 7 and 8. But they were also postponed due to technical problems. December 18 did not work because of the strong wind.