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ULA’s Delta-4 Heavy successfully launches the Parker Solar Probe

August 12, 2018 at 12:43 am Robert Zimmerman Points of Information

ULA’s Delta-4 Heavy has successfully launched the Parker Solar Probe.

As I write this the spacecraft is in orbit, but there are several more steps needed to confirm the spacecraft is on course, including a second burn of the upper stage, its separation from the spacecraft, followed by the firing of the solid rocket kick stage and then its separation from the spacecraft. All these steps will take another 40 minutes or so, so reporting them will have to wait until tomorrow.

Update: The spacecraft has successfully separated from its last stage and is on its way.

Over the next two months, Parker Solar Probe will fly towards Venus, performing its first Venus gravity assist in early October – a maneuver a bit like a handbrake turn – that whips the spacecraft around the planet, using Venus’s gravity to trim the spacecraft’s orbit tighter around the Sun. This first flyby will place Parker Solar Probe in position in early November to fly as close as 15 million miles from the Sun – within the blazing solar atmosphere, known as the corona – closer than anything made by humanity has ever gone before.

The leaders in the 2018 launch standings:

22 China
15 SpaceX
8 Russia
6 ULA
4 Japan
4 Europe

The U.S. and China are once again tied in the national rankings, 22 each.

4 comments capitalism, commercial, competition, Delta 4 Heavy, engineering, Parker Solar Probe, science, spaceflight, ULA

ULA chief says Congress deal clears path to Vulcan

July 21, 2016 at 9:52 am Robert Zimmerman Points of Information

The competition heats up: The CEO of ULA, Tory Bruno, said in an industry publication interview today that the Congressional deal that allows the company to buy 22 more Russian engines for its Atlas 5 clears the way for their eventual transition to the Vulcan rocket and an end to dependence on those Russian engines.

The article is worth a careful read, as it also provides a very detailed look at ULA’s future plans for its Atlas 5, Delta 4 Heavy, and Vulcan rockets. This paragraph was especially interesting:

The next major milestone is determining what engine will replace the [Russian] RD-180. Washington-based Blue Origin is developing the BE-4, a privately funded Liquid Oxygen (Lox) and Liquefied Natural Gas (LNG) engine capable of 550,000 pounds of thrust (lbf); and California-based Aerojet Rocketdyne is creating the AR1, a government-supported Lox/Kerosene (RP-1) engine capable of 500,000lbf. Either replacement will require two engines to match the power of the RD-180. Blue Origin claims its engine, already four years into development, will be flight qualified by 2017, while Aerojet Rocketdyne, having started its development later, says the AR1 will be flight qualified by 2019. Bruno said ULA would make its decision soon.

“Sometime close to the end of the year we are going to down-select, and then move into our Critical Design Review (CDR) and start manufacturing the rocket,” he said.

I strongly suspect they want to go with Blue Origin’s engine, because it is more powerful, farther along in development, and almost certainly less expensive. The question will be whether pressure from Congress, which favors Aerojet Rocketdyne’s engine for pork barrel reasons (Congress is funding it), will force ULA to go with it instead.

One comment Atlas 5, capitalism, commercial, competition, Congress, Delta 4 Heavy, engineering, policy, politics, spaceflight, ULA, Vulcan

Successful ULA Delta 4 Heavy launch today

June 11, 2016 at 6:03 pm Robert Zimmerman Points of Information

The competition heats up: ULA today successfully launched a U.S. National Reconnaissance Office spy satellite, using what is presently the world’s most powerful rocket, the Delta 4 Heavy.

In many ways, this rocket’s launch, which you can see in the video embedded below the fold, gives a rough idea of what a Falcon Heavy launch will look like, since the rockets have somewhat similar configurations.
» Read more

8 comments capitalism, commercial, competition, Delta 4 Heavy, engineering, freedom, government, politics, spaceflight, ULA

ULA sets dates for next Atlas 5 and Delta 4 Heavy launches

May 20, 2016 at 6:48 am Robert Zimmerman Points of Information

The competition heats up: ULA has finally scheduled its next Atlas 5 launch for June 24 after completing its investigation of the premature engine shutdown during the previous launch.

The link also provides information on the next Delta 4 Heavy launch, set for June 4.

Leave a comment Atlas 5, capitalism, commercial, competition, Delta 4 Heavy, engineering, government, spaceflight, ULA

Delta 4 Heavy moved to launchpad for Orion flight

October 2, 2014 at 10:09 am Robert Zimmerman Points of Information

In preparation for a December test flight of the first Orion capsule, the Delta 4 Heavy rocket has been positioned on the launchpad.

The unmanned Dec. 4 mission, known as Exploration Flight Test-1 (EFT-1), is designed to test out Orion’s critical crew-safety systems, such as its thermal-protection gear. During the four-hour flight, the Orion capsule will fly 3,600 miles (5,800 kilometers) from Earth, then come speeding back into the planet’s atmosphere at about 20,000 mph (32,190 km/h) before splashing down softly in the Pacific Ocean, NASA officials said.

Forgive me if I remain decidedly unexcited. I still believe SLS to be an enormous waste of resources that would be better spent onother things.

Posted on the road south of Phoenix.

5 comments Delta 4 Heavy, engineering, government, NASA, Orion, politics, science, SLS, spaceflight

The most powerful rocket presently in service, the Delta-4 Heavy, successfully launched a U.S. surveillance satellite this morning.

June 29, 2012 at 1:19 pm Robert Zimmerman Points of Information

The most powerful rocket presently in service, the Delta-4 Heavy, successfully launched a U.S. surveillance satellite this morning.

The booster features three core rocket boosters and is topped with a second stage to place payloads into orbit. It is 235 feet tall (72 meters) and can carry payloads of up to 24 tons into low-Earth orbit and 11 tons to geosynchronous orbits.

SpaceX’s proposed Falcon Heavy would launch about 50 tons into low Earth orbit, making it twice as powerful, should it be built. The next obvious question, which I can’t answer at the moment, is how do these two rockets compare in terms of cost?

5 comments commercial, competition, Delta 4 Heavy, engineering, rocket, spaceflight

NASA picks the Delta 4 Heavy to launch Orion into orbit on its first test flight

November 10, 2011 at 8:03 pm Robert Zimmerman Points of Information

NASA has chosen the Delta 4 Heavy rocket to launch the Orion capsule into orbit for its first test flight in 2014.

So, tell me again why NASA needs to spend $18 to $62 billion for a new rocket, when it already can hire Lockheed Martin to do the same thing? Though the Delta 4 Heavy can only get about 28 tons into low Earth orbit, and only about 10 tons into geosynchronous orbit — far less than the planned heavy-lift Space Launch System rocket — Boeing ~~Lockheed~~ has a variety of proposed upgrades to Delta 4 Heavy that could bring these numbers way up. Building these upgrades would surely be far cheaper than starting from scratch to build SLS.

Corrected above as per comments below.

9 comments Ares, Constellation, Delta 4 Heavy, engineering, NASA, Orion, policy, politics, SLS, Space Launch System, spaceflight, test flight