Axiom Space Mission 1 | Falcon 9 Block 5

Lift Off Time
April 8, 2022 – 15:17:12 UTC | 11:17:12 EDT
Mission Name
Axiom Space Mission 1, the first fully private mission to the International Space Station
Launch Provider
(What rocket company launched it?)
SpaceX
Customer
(Who paid for this?)
Axiom
Rocket
Falcon 9 Block 5, B1062-5; 91.73 day turnaround
Launch Location
Launch Complex 39A (LC-39A), Kennedy Space Center, Florida, USA
Payload mass
Launch mass: ~13,000 kg (~28,600 lb)
Landing mass: ~10,000 kg (~22,000 lb)
Where did the spacecraft go?
Crew Dragon C206 docked with the International Space Station (ISS) in a ~420 km circular orbit at 51.6º
Did they attempt to recover the first stage?
Yes
Where did the first stage land?
B1062-5 successfully landed 545 km downrange on A Shortfall of Gravitas

Tug: Doug; Support: Dog

Did they attempt to recover the fairings?
There are no fairings on the vehicle
Were these fairings new?
N/A
This was the:
– 1st private mission to the ISS
1st third flight of Dragon 2
– 147th Falcon 9 launch
– 87th Falcon 9 flight with a flight proven booster
– 91st re-flight of a booster
– 12th re-flight of a booster in 2022
– 113th booster landing

39th consecutive landing (a record)
– 13th launch for SpaceX in 2022
– 46th SpaceX launch from LC-39A
– 38th orbital launch attempt of 202
2
(37th successful)
Where to watch
Official Replay

How Did It Go?

SpaceX successfully launched four astronauts to the International Space Station (ISS) in their Crew Dragon spacecraft. The spacecraft launched on a Falcon 9 Block 5, which is lifted off from Launch Complex 39A, at the Kennedy Space Center in Florida.

Dragon successfully docked to the ISS’ Harmony zenith port on April 9, 2022 at 12:29 UTC. The crew remained docked for roughly twice as long as planned, due to an unfavorable recovery weather. Dragon undocked from the ISS at 01:10 UTC on April 25, 2022.

Following undocking, Dragon spent ~16 hours free flying, before splashing down in the Atlantic Ocean at 17:06 UTC. The spacecraft was then recovered by SpaceX’s Dragon recovery boat, Megan.

Axiom Space Mission 1

With SpaceX as the launch/mission provider and Axiom as the customer, the Ax-1 mission marked the first fully private mission to the ISS. The four astronauts launched in SpaceX’s Crew Dragon C206 Endeavor spacecraft–marking the first third flight of a Dragon 2 spacecraft.

The Ax-1 mission was a planned 10 day mission with eight days at the ISS, one day for ascend and docking, and one day for undocking and decent. Once docked to the ISS, the visitors were on station with the Crew-3 astronauts Raja Chari, Thomas Marshburn, Kayla Barron, and Matthias Maurer and MS-21 cosmonauts Oleg Artemyev, Denis Matveev, and Sergey Korsakov.

Who Are The Astronauts?

Commander Michael López-Alegría

Michael López-Alegría in his spacesuit 10 days before launch (Credit: Michael López-Alegría)

Serving as the spacecraft commander for the Axiom Space Mission 1, Michael López-Alegría is a former NASA astronaut and test pilot. He was born on May 30, 1958, in Madrid, Spain.

Following graduation from Mission Viejo high School, López-Alegría joined the United States Navy, where he earned his Bachelor’s in systems engineering and later his Master’s in aeronautical engineering.

In 1981, López-Alegría became an instructor pilot at the Naval Air Station Whiting Field.

López-Alegría has flown on four previous spaceflights: STS-73, STS-92, STS-113, and Soyuz TMA-9. On his four previous flights, he has conducted 10 EVAs for a total of just under 68 hours of EVA time. Despite this experience,ópez-Alegía will not be an EVA-1 on the mission, as NASA would not let him as a tourist.

Pilot Larry Conner

The spacecraft pilot of the Ax-1 mission will be Larry Conner. Born in 1950, Conner is an American real estate agent and tech entrepreneur.

Connor is currently the head of the real estate investing firm Connor Group, which currently owns over 3-billion dollars in assets.

Connor is a private pilot and has competed in several aerobatic competitions. Axiom Space Mission 1 will be Conner’s first space flight.

Axiom Space Mission 1, Larry Conner
Larry Conner (Credit: Connor Group)

Mission Specialist Mark Pathy

Axiom Space Mission 1, Mark Pathy
Mark Pathy (Credit: The Globe and Mail)

Serving as the first mission specialist on the Ax-1 mission, Mark Pathy is a Canadian businessman and philanthropist. Being the CEO of Mavrik—a private Canadian investment company—Pathy has a long history of being a company executive. He was formerly the CEO of Fednav, a private shipping company, and was the chairman of Stingray Group.

Ax-1 will be Pathy’s first space flight. According to Christopher Reynolds, he paid $50 million for this flight.

Mission Specialist Eytan Stibbe

The final crew member of the Ax-1 mission is Eytan Meir Stibbe. Serving as the second mission specialist, Stibbe is a Colonel in the Israeli Air Force.

In 1985, he co-founded Elar which establishes infrastructure in developing countries, including cell phone networks, naval defense systems, and other agricultural development projects. In 2011, he sold his share and invested in the company Mitrelli-an engineering, procurement, and construction company. He sold his shares of this company in 2018.

Axiom Space Mission 1 will also be Stibbe’s first space flight.

Axiom Mission 1, Eytan Stibbe
Eytan Stibbe (Credit: יוסי זליגר)

Crew Dragon C206 Endeavor

The Crew Dragon that supported the Axiom Space Mission 1 is the first operational Crew Dragon: C206. This Dragon has previously supported the SpaceX Demonstration Mission 2 and USCV-2 missions; The spacecraft–whose name was announced shortly after the launch of DM-2–was named by Bob Behnken and Doug Hurley as a tribute to the hard work by the SpaceX and NASA teams.

Between Endeavor’s first and second flights (DM-2 and Crew-2, respectively) it underwent a large amount of refurbishment and upgrades. These included upgrades to its abort system, upgrades to the structure of Dragon, and replacing the heatshield after slightly higher than expected rates of heat-shield erosion.

Following the Crew-2 mission, Endeavor was recovered from the Gulf of Mexico on November 9, 2021 by GO Navigator. It was then taken to SpaceX’s Dragon Land–the place where SpaceX refurbishes Dragons. This process took longer than usual due to the large amount of leaked urine, which was trapped under the Dragon’s floor boards when the urine collection system leaked after a tube failure. To ensure this problem doesn’t happen again, SpaceX switched to welding the tube instead of gluing it.

Besides the change to the waste management systems, the rest of the refurbishment was light: the critical main components of Dragon have held up very well.

Axiom Space Mission 1 Mission Profile

Following separation from the second stage, Crew Dragon began opening its nosecone. This exposes the forward Draco thrusters and the docking mechanism. Endeavor then used its Draco thrusters to perform a number of phasing burns to increase its orbital altitude and align with the ISS.

Once the spacecraft is in the correct orbit and near the station, it entered the ISS’ “keep out sphere.” Following a series of go/no-go polls, Dragon docked itself to the ISS’ Zenith port on the Harmony module.

Flight plan schematics. (Credit: SpaceX)

What Is Falcon 9 Block 5?

The Falcon 9 Block 5 is SpaceX’s partially reusable two-stage medium-lift launch vehicle. The vehicle consists of a reusable first stage, an expendable second stage, and, when in payload configuration, a pair of reusable fairing halves. In this case, however, on top of Falcon 9 is Crew Dragon.

First Stage

The Falcon 9 first stage contains 9 Merlin 1D+ sea level engines. Each engine uses an open gas generator cycle and runs on RP-1 and liquid oxygen (LOx). Each engine produces 845 kN of thrust at sea level, with a specific impulse (ISP) of 285 seconds, and 934 kN in a vacuum with an ISP of 313 seconds. Due to the powerful nature of the engine, and the large amount of them, the Falcon 9 first stage is able to lose an engine right off the pad, or up to two later in flight, and be able to successfully place the payload into orbit .

The Merlin engines are ignited by triethylaluminum and triethylborane (TEA-TEB), which instantaneously burst into flames when mixed in the presence of oxygen. During static fire and launch the TEA-TEB is provided by the ground service equipment. However, as the Falcon 9 first stage is able to propulsively land, three of the Merlin engines (E1, E5, and E9) contain TEA-TEB canisters to relight for the boost back, reentry, and landing burns.

Second stage

The Falcon 9 second stage is the only expendable part of the Falcon 9. It contains a singular MVacD engine that produces 992 kN of thrust and an ISP of 348 seconds. The second stage is capable of doing several burns, allowing the Falcon 9 to put payloads in several different orbits.

For missions with many burns and/or long coasts between burns, the second stage is able to be equipped with a mission extension package. When the second stage has this package it has a gray strip, which helps keep the RP-1 warm, an increased number of composite-overwrapped pressure vessels (COPVs) for pressurization control, and additional TEA-TEB.

falcon 9 block 5, launch
Falcon 9 Block 5 launching on the Starlink V1.0 L27 mission (Credit: SpaceX)

Falcon 9 Booster

The booster that supported the Ax-1 mission is B1062-5. As the name implies, the booster had supported four previous missions, making Ax-1 its fifth flight. Upon successful landing, its design changed to B1062-6.

Following stage separation, the Falcon 9 conducted two burns. These burns softly touched down the booster on SpaceX’s autonomous spaceport drone ships A Shortfall of Gravitas.

falcon 9 booster, landing, drone ship
Falcon 9 landing on Of Course I Still Love You after launching Bob and Doug (Credit: SpaceX)

All times are approximate

HR/MIN/SEC EVENT
00:45:00 SpaceX Launch Director verifies go for propellant load
00:42:00 Crew access arm retracts
00:37:00 Dragon’s launch escape system is armed
00:35:00 RP-1 (rocket grade kerosene) loading begins
00:35:00 1st stage LOX (liquid oxygen) loading begins
00:16:00 2nd stage LOX loading begins
00:07:00 Falcon 9 begins engine chill prior to launch
00:05:00 Dragon transitions to internal power
00:01:00 Command flight computer to begin final prelaunch checks
00:01:00 Propelant tank pressurization to flight pressure begins
00:00:45 SpaceX Launch Director verifies go for launch
00:00:03 Engine controller commands engine ignition sequence to start
00:00:00 Falcon 9 liftoff

AX-1 LAUNCH, LANDING, AND DEPLOYMENT

HR/MIN/SEC EVENT
00:01:02 Max Q (moment of peak mechanical stress on the rocket)
00:02:35 1st stage main engine cutoff (MECO)
00:02:39 1st and 2nd stages separate
00:02:46 2nd stage engine starts
00:07:25 1st stage entry burn begins
00:08:48 2nd stage engine cutoff (SECO-1)
00:09:02 1st stage landing burn begins
00:09:29 1st stage landing
00:12:07 Dragon separates from 2nd stage
00:12:55 Dragon nosecone open sequence begins

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