Tag: Minotaur

Northrop Grumman’s Minotaur-4 rocket launches three payloads for War Department

8:40 am

Northrop Grumman early this morning successfully placed three experimental payloads into orbit for the War Department’s Naval Research Laboratory (NRL), its Minotaur-4 rocket lifting off from Vandenberg Space Force Base in California.

NRL’s payloads included the Lasersheet Anomaly Resolution and Debris Observation (LARADO) instrument; the Global Navigation Satellite System (GNSS) Orbiting Situational Awareness Sensor (GOSAS); and the Gadolinium Aluminum Gallium Garnet (GAGG) Radiation Instrument (GARI-1C).

The first is testing new methods for tracking space junk, the second improved GPS-type location and navigation for military operations, and the third new gamma-ray detection technology for tracking nuclear tests.

This was Northrop Grumman’s first launch in 2026, so the leader board for the 2026 launch race remains unchanged:

42 SpaceX
16 China
5 Rocket Lab
5 Russia

SpaceX continues to lead the entire world combined in total launches, as it did in both ’24 and ’25.

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U.S. missile test explodes 11 seconds after launch

9:33 am

A test flight of a Minotaur missile with an updated warhead delivery system exploded 11 seconds after liftoff from Vandenberg Space Force Base in California on July 6th.

Despite a news release saying the Minotaur II+ test would take place Thursday morning from the northern section of the base, the launch occurred the night before, at 11:01 p.m.

More than an hour after liftoff, Vandenberg officials confirmed the booster had exploded approximately 11 seconds after launching from Test Pad 01. There were no injuries in the explosion and the debris was contained to the immediate vicinity of the launch pad, Vandenberg officials said in a statement released early Thursday.

The military would not explain the change in launch time, nor provide much information about the explosion. According to the article, it is even possible that the contradiction between the announced launch time and when it actually occurred was because “military officials failed to account for the one-hour time difference between California and the home of the Air Force Nuclear Weapons Center at Kirtland Air Force Base in New Mexico.”

Seems utterly absurd, but completely possible considering the general overall incompetence of our modern federal government.

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Northrop Grumman launches three military satellites using Minotaur rocket

8:56 am

Early this morning Northrop Grumman successfully used a former Minuteman rocket repurposed as a commercial rocket dubbed Minotaur to launch three military reconnaissance satellites for the National Reconnaissance Office.

The rocket’s solid-fueled stages were in themselves amazingly old.

The 69-foot-tall (21-meter) rocket is based on leftover solid-fueled motors from the U.S. Air Force’s Minuteman missile program. Designers added two Orion solid rocket motors on top of the lower two stages of a Minuteman missile to turn the bomb carriers into satellite launchers.

The Minotaur 1 rocket’s M55A1 first stage motor was cast with solid propellant in 1966 by Thiokol, now part of Northrop Grumman. The SR19 second stage motor, produced by Aerojet, was filled with its solid propellant in 1983, according to a Northrop Grumman spokesperson.

The age of the first stage means it is likely the oldest rocket motor ever used on a space launch.

The leaders in the 2021 launch race:

18 SpaceX
16 China
8 Russia
3 Northrop Grumman

The U.S. now leads China 26 to 16 in the national rankings.

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Federal bureaucracy prevents satellite launch

8:33 am

We’re here to help you! A suite of 8 private commercial cubesats that the Air Force had agreed to launch as secondary payloads on the August 26 launch of a Minotaur rocket were blocked from launch by FAA bureaucracy.

The “interagency partner” that appeared to raise objections was the Federal Aviation Administration, which issued the launch license for the mission. “The Federal Aviation Administration (FAA) did not approve Orbital ATK’s request for a license modification to include commercial cubesats on the upcoming ORS-5 launch mission,” Guthrie said. “As a result, Orbital ATK decided not to include commercial cubesats on the launch.”

Asked if the FAA placed any conditions or restrictions on the ORS-5 mission launched on the Minotaur 4, agency spokesman Hank Price said the FAA issued Orbital ATK a license Feb. 10 to launch government payloads on the Minotaur 4 from Cape Canaveral. The launch license contains any and all conditions on the license, Price said, and the FAA does not comment on the “existence or status of launch license applications or modifications until the FAA makes a final decision regarding those requests.”

Industry sources believe the FAA never formally rejected a proposed license modification for the cubesats because it did not go through the official process, but it was informally clear that the agency would have rejected such a modification had it been formally submitted.

Spire officials are trying to figure out why there was any issue at all about commercial cubesats on this launch. “If Spire chose this launch in the place of another commercial offering, I would understand the industry’s concern about fair competition,” Barna said. “But no existing U.S. launch company or new entrant was offering a similar launch. The fundamental intent of the policy is to keep competition fair, and competition just wasn’t a factor here.”

Spire’s problems here demonstrates the difficulties smallsat companies have getting their satellites in orbit, which explains the emergence of a new smallsat rocket industry. The company’s difficulties also illustrates why the launch industry should always be opposed to giving too much regulatory power to government. In this case it really appears that the launch license was denied merely because the bureaucrats involved with approving it at the FAA simply didn’t want to bother dealing with it.

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Smallsat company searches for launch services

9:04 am

The competition heats up: Terra Bella, formally known as Skybox Imaging, hopes to have as many as 21 satellites in orbit by the end of 2017.

Space Systems Loral (SSL) is Terra Bella’s manufacturing partner for the SkySat satellites, building 19 SkySat Cs — one prototype and 18 final versions. Joe Rothenberg, director of Skybox engineering and operations at Google, told Via Satellite that the first SkySat C satellite is currently scheduled to launch aboard a Polar Satellite Launch Vehicle (PSLV) from the Indian Space Research Organization (ISRO) on May 31. The PSLV launch is for the prototype to precede the rest of the series. The next four are then to launch on an Arianespace Vega as a rideshare this summer, followed by six more on Orbital ATK’s Minotaur rocket during the fourth quarter this year.

The Skybox C satellite only weights 265 pounds, so it is larger than a cubesat but tiny compared to most commercial satellites. The company’s problem now is that, except for Orbital ATK’s Minotaur rocket, they don’t have a launch vehicle dedicated to this size satellite. And Minotaur is probably too expensive (which is why Orbital wants the right to use surplus ICBM motors to power it). Because of this Terra Bella must launch its satellites as secondary payloads, which leaves them at the scheduling mercy of the primary payload. Virgin Galactic’s LauncherOne is intended to serve this smallsat market, competing directly with Minotaur, but Terra Bella is understandably skeptical of that company’s effort.

A small piece of trivia. Rothenberg was a key NASA manager running the shuttle Hubble repair missions, one of the few NASA efforts that operated like a private company: competitive, hard-working, and demanding of success. It is entirely fitting that he has moved out of the government and into the private sector, where his skills can truly shine. It speaks well of Terra Bella that they hired him.

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Orbital Sciences has launch success

9:19 am

Orbital Sciences has a launch success, putting an Air Force reconnaissance satellite into orbit from the Kodiak Launch Complex in Alaska.

For Orbital, this success cleans off some of the stain left on the company from the recent launch failures of its Taurus 1 rocket. What would leave the company stainless, however, will be a successful first launch of its new Taurus 2 rocket, needed to carry its Cygnus capsule to ISS and scheduled for late this year.

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