Delta IV

Surveillance Satellite Set for June 9 Launch on Mighty Delta 4 Heavy

Sun rises behind Delta 4 Heavy launch of NROL-15 for the NRO on June 29, 2012 from Cape Canaveral Air Force Station at Space Launch Complex-37. Credit: Ken Kremer/

CAPE CANAVERAL, FL — A classified surveillance satellite set to fortify the reconnaissance capabilities of America’s spy masters is now scheduled to launch this Thursday afternoon, June 9, atop America’s most powerful rocket – the Delta 4 Heavy.

Lift off of the United Launch Alliance (ULA) Delta 4 Heavy carrying the classified NROL-37 spy satellite for the National Reconnaissance Office (NRO) on Thursday, June 9 is slated for 1:59 p.m. EDT from Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida.

This follows a four day delay from June 5 to deal with a last minute and unspecified payload issue.

“Spacecraft, rocket and support systems are ready!” tweeted the NRO.

Although almost everything about the clandestine payload, its mission, purpose and goals are classified top secret, it is certainly vital to America’s national security.

We do know that NROL-37 will be launched for the NRO on an intelligence gathering mission in support of US national defense.

The possible roles for the reconnaissance payload include signals intelligence, eavesdropping, imaging and spectroscopic observations, early missile warnings and much more.

The NRO runs a vast fleet of powerful orbital assets hosting a multitude of the most advanced, wide ranging and top secret capabilities.

The payload is named NROL-37 and will be carried to an undisclosed orbit, possibly geostationary, by the triple barreled ULA Delta 4 Heavy rocket – currently the largest and most powerful rocket in the world.

It is manufactured and launched by ULA as part of the Delta rocket family. This includes the Delta 4 Medium which can launch with strap on solid rocket boosters. ULA also builds and launches the Atlas V rocket family.

Delta 4 Heavy cutaway diagram. Credit: ULA

To date nine NRO payloads have flown on Delta 4 rockets. NROL-37 will be the 32nd Delta IV mission since the vehicle’s inaugural launch.

The NRO was formed in response to the Soviet launch of Sputnik and secretly created on September 6, 1961.

“The purpose is overseeing all satellite and overflight reconnaissance projects whether overt or covert. The existence of the organization is no longer classified today, but we’re still pressing to perform the functions necessary to keep American citizens safe,” according to the official NRO website.

Precisely because this is a launch of the mighty triple barreled Delta 4 Heavy, the view all around is sure to be spectacular and is highly recommended – in case you are in the Florida Space Coast area or surrounding regions.

One thing for sure is the top secret payload is huge and weighty since it requires the heaviest of the heavies to blast off.

Watch this ULA video showing the mating of the classified reconnaissance payload to the rocket.

Video Caption: The NROL-37 payload is mated to a Delta IV Heavy rocket inside the Mobile Service Tower or MST at Cape Canaveral Air Force Station’s Space Launch Complex-37. Credit: ULA

Another unclassified aspect we know about this flight is that the weather forecast is rather iffy.

The official Air Forces prognosis calls for only a 40% chance of favorable weather conditions.

The primary concerns are for Anvil Clouds, Cumulus Clouds and Lightning.

In case of a scrub for any reason related to technical or weather issues, the next launch opportunity is 48 hours later on Saturday. June 11.

The weather odds rise significantly to an 80% chance of favorable weather conditions on June 11.

Somewhat surprisingly ULA has just announced the launch time – which is planned for 1:59 p.m. EDT (1759 GMT).

And you can even watch a ULA broadcast which starts 20 minutes prior to the given launch time at 1:39 p.m. EDT.

Webcast link:

The June 9 launch of the ULA Delta 4 Heavy carrying the classified NROL-37 spy satellite is planned for 1:59 p.m. EDT. Broadcast starts at 1:39 p.m. EDT Watch the live webcast:

Since this is a national security launch, the exact launch time is actually classified and could easily occur later than 1:59 p.m.

The launch period extends until 6:30 p.m. EDT (2230 GMT). The actual launch window is also classified and somewhere within the launch period.

Seeing a Delta 4 Heavy soar to space is a rare treat since they launch infrequently.

The last of these to launch from the Cape was for NASA’s inaugural test flight of the Orion crew capsule on the EFT-1 launch in Dec. 5, 2014. No other rocket was powerful enough.

Inaugural Orion crew module launches at 7:05 a.m. on Delta 4 Heavy Booster from pad 37 at Cape Canaveral on Dec. 5, 2014. Credit: Ken Kremer –

The Delta IV Heavy employs three Common Core Boosters (CBCs). Two serve as strap-on liquid rocket boosters (LRBs) to augment the first-stage CBC and 5-m-diameter payload fairing housing the payload.

Side view shows trio of Common Booster Cores (CBCs) with RS-68 engines powering the Delta IV Heavy rocket resting horizontally in ULA’s HIF processing facility at Cape Canaveral that will launch NASA’s maiden Orion on the EFT-1 mission in December 2014 from Launch Complex 37. Credit: Ken Kremer/

Watch for Ken’s continuing on site reports direct from Cape Canaveral Air Force Station and the SpaceX launch pad.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer


Learn more about ULA Atlas and Delta rockets, SpaceX Falcon 9 rocket, Orbital ATK Cygnus, ISS, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:

June 8/9: “SpaceX, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings

Ken Kremer

Dr. Ken Kremer is a speaker, research scientist, freelance science journalist (KSC area,FL) and photographer whose articles, space exploration images and Mars mosaics have appeared in magazines, books, websites and calendars including Astronomy Picture of the Day, NBC, FOX, BBC,, Spaceflight Now, Science and the covers of Aviation Week & Space Technology, Spaceflight and the Explorers Club magazines. Ken has presented at numerous educational institutions, civic & religious organizations, museums and astronomy clubs. Ken has reported first hand from the Kennedy Space Center, Cape Canaveral, NASA Wallops, NASA Michoud/Stennis/Langley and on over 80 launches including 8 shuttle launches. He lectures on both Human and Robotic spaceflight - Follow Ken on Facebook and Twitter

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