Dragon CRS-2 SpX-27 | Falcon 9 Block 5

Raise Off Time
(Topic to alter)
March 15, 2023 – 00:30 UTC
March 14, 2023 – 20:30 EDT
Mission Identify
Dragon CRS-2 SpX-27, a Industrial Resupply Service mission to the Worldwide House Station (ISS)
Launch Supplier
(What rocket firm is launching it?)
(Who’s paying for this?)
Nationwide Aeronautics and House Administration (NASA)
Falcon 9 Block 5 Booster 1073-7; 35.96-day turnaround
Launch Location
Launch Complicated 39A (LC-39A), Kennedy House Middle, Florida, USA
Payload mass
Not Specified
The place is the spacecraft going?
Dragon C209-3 will rendezvous with the ISS, ~400 km low Earth orbit (LEO) at a 51.66° inclination
Will they be trying to get better the primary stage?
The place will the primary stage land?
Autonomous Spaceport Drone Ship A Shortfall of Gravitas
Will they be trying to get better the fairings?
There aren’t any fairings on the Dragon 2
Are these fairings new?
There aren’t any fairings on the Dragon 2
How’s the climate wanting?
The climate is at the moment 80% GO for launch (as of March 14, 2023 – 12:30 UTC)
This would be the:
– 210th Falcon 9 launch
– 144th Falcon 9 flight with a flight-proven booster
– one hundred and fiftieth re-flight of a booster
– sixteenth re-flight of a booster in 2023
– 178th booster touchdown
– 104th consecutive touchdown (a report)
– seventeenth launch for SpaceX in 2023
– 62nd SpaceX launch from LC-39A

third flight of Dragon 2 C209
thirty sixth orbital launch try of 2023
The place to look at
As soon as obtainable, an official livestream may be discovered right here

What’s All This Imply?

Dragon CRS-2 SpX-27 (CRS-27) is a Industrial Resupply Service mission that will likely be heading to the Worldwide House Station (ISS) to ship cargo. SpaceX was awarded this mission by NASA again in 2016 and can launch it on its Falcon 9 Block 5 rocket utilizing a Cargo Dragon 2, C209-3, the primary flight for this Dragon capsule. The rocket will elevate off from Launch Complicated 39A, on the Kennedy House Middle in Florida. CRS-27 would be the seventh flight for SpaceX below NASA’s CRS Section 2 contract.

CRS-2 SpX-27 – CRS-27

The Worldwide House Station (ISS) is a big worldwide collaboration between nations throughout the globe. Working for over 20 years, the orbital laboratory wants common visits from cargo automobiles to ship new experiments, provides like clothes, meals, and water, and finally act has a rubbish disposal for used objects.

At the moment, three completely different automobiles from three completely different entities have the aptitude to hold cargo to the ISS. Northrup Grumman’s Cygnus spacecraft launched by NASA, ROSCOSMOS’s Soyuz Progress spacecraft, and SpaceX’s Cargo Dragon spacecraft.

Cygnus just lately launched a resupply mission to the ISS with the S.S. Sally Experience car on their CRS-2 NG-18 mission from Wallops Island, Virginia, USA. The final Progress launch was in early February on the Progress MS-22 mission. The final SpaceX resupply mission was in late November of 2022, CRS-2 SpX-26.

CRS-27 Analysis Payloads

Each resupply mission hosts dozens of experiments and expertise demonstrations. On CRS-26, these vary from vegetation experiments to new photo voltaic arrays for the ISS to offer higher energy consumption. These analysis experiments can vary from NASA-funded experiments to personal firms and universities. Because of the quantity of analysis on CRS-27, solely choose payloads will likely be mentioned in-depth right here. In case you’d prefer to be taught extra, try and discover NASA’s or the Nationwide Lab’s web sites.


BFF-Meniscus is an experiment that evaluates the feasibility of utilizing the ISS’ BioFabrication Facility to print a meniscus. The investigation consists of two phases. Section I is taken into account a proof of idea and makes an attempt to print a meniscus with a mix of Techshot and 4D Bio3 Bio-Inks. 4D Bio3 will present a help syringe, whereas Techshot will present Bio-Inks which are already on the ISS.

Section II will then try to print a meniscus tissue pattern with 4D Bio3 cells and inks solely. The prints of part II will likely be accomplished in check print cassettes and tissue cassettes and can after profitable completion be transferred to the ADvanced SEParations (ADSEP) facility. There the samples will likely be cultured for 14 days earlier than part II concludes with the tissue being fastened. Later, the samples will likely be returned to the experiments principal investigator (PI) for additional evaluation.

Doable purposes of this investigation can be addressing musculoskeletal accidents in area and on Earth, in addition to enhancing the understanding and limits of bio-fabrication and the cells response to microgravity. This may very well be helpful for future tissue-engineering options for aforementioned accidents.

Mobile Mechanotransduction by Osteoblasts in Microgravity

The Mobile Mechanotransduction by Osteoblasts in Microgravity venture will examine how being in a microgravity setting contributes to the lack of bone mass. The venture makes use of a tool that can measure the stiffness of human osteoblasts, that are cells concerned within the formation of bone. It’s believed that microgravity impacts the constructions of cells, lowering the stiffness in bone cells. That is just like what we see with the impact of growing old on cells on Earth. Osteoporosis is a situation that causes bones to change into more and more weak and brittle as folks age. Fragile bones are extra vulnerable to fractures from low-impact forces and falling.

Earlier research have proven that microgravity can induce accelerated bone loss; nevertheless, researchers are nonetheless figuring out how this occurs. On this venture, the analysis group will examine a bunch of proteins and their impact on osteoblasts in microgravity. 

This venture can have purposes each in area and again on Earth. The analysis will assist develop countermeasures for astronauts who expertise bone loss in area. Again on Earth, the examine will enhance prevention and therapy for osteoporosis and different age-related circumstances.

CRS-27, cellular mechanotransduction by osteoblasts in microgravity, ISS
The Mobile Mechanotransduction by Osteoblasts CubeLab aboard the Worldwide House Station (Credit score: NASA)

Impact of Microgravity on Drug Responses Utilizing Engineered Coronary heart Tissues

The Impact of Microgravity on Drug Responses Utilizing Engineered Coronary heart Tissues venture will examine the impact of microgravity on coronary heart perform. Muscle tissue comparable to the guts weaken in microgravity environments as they expertise a really completely different gravitational load from that on Earth. This distinction in gravity can induce abnormalities in cells, like that seen in atrophy, a illness wherein coronary heart muscle tissues are weakened and will result in coronary heart failure. Most of these responses to the long-term microgravity setting are like coronary heart illnesses on Earth however on a a lot quicker timeline.

This venture builds on a earlier examine that confirmed that publicity to microgravity for prolonged time intervals induced noticeable adjustments in coronary heart cell perform, which might result in long-term impacts. On this examine, researchers will examine whether or not engineered coronary heart tissue experiences atrophy in microgravity and whether or not FDA-approved medicines might counter this. This venture’s outcomes can be utilized to develop new medicine to deal with coronary heart circumstances on Earth.

Screening and Batch Manufacturing of Complicated Biotherapeutics in Microgravity

One other experiment on CRS-27 is the Screening and Batch Manufacturing of Complicated Biotherapeutics in Microgravity. It should look at the crystallization means of a number of biotherapeutics, comparable to monoclonal antibodies. Microgravity aids in producing diffraction high quality crystals. Analyzing the construction of these crystals might help in understanding the biotherapeutic’s properties. This higher understanding can then result in decreased manufacturing price, allow formulations of biotherapeutics which are extra secure, and may be administered extra simply.

Construction and Stability of Foams and Emulsions

The Construction and Stability of Foams and Emulsions venture will examine the properties and efficiency of foams and emulsions. The examine will use particles with completely different shapes and floor roughness to stabilize foams and emulsions. The distinctive microgravity setting of the ISS allows the examination of the microstructures of foams and emulsions with out the affect of gravity-related components. This implies the venture will present a bodily phenomenon that has been predicted by fashions however has by no means truly been noticed – that’s the optimum packing construction of dry foams. The venture may even examine if eco-friendly nanoparticles can be utilized as a stabilizer for foams and emulsions.

What Is Falcon 9 Block 5?

The Falcon 9 Block 5 is SpaceX’s partially reusable two-stage medium-lift launch car. The car consists of a reusable first stage, an expendable second stage, and, when in payload configuration, a pair of reusable fairing halves.

First Stage

The Falcon 9 first stage incorporates 9 Merlin 1D+ sea-level engines. Every engine makes use of an open gasoline generator cycle and runs on RP-1 and liquid oxygen (LOx). Every engine produces 845 kN of thrust at sea stage, with a selected impulse (ISP) of 285 seconds, and 934 kN in a vacuum with an ISP of 313 seconds. Because of the highly effective nature of the engine, and the massive quantity of them, the Falcon 9 first stage is ready to lose an engine proper off the pad, or as much as two later in flight, and be capable of efficiently place the payload into orbit.

The Merlin engines are ignited by triethylaluminum and triethylborane (TEA-TEB), which instantaneously burst into flames when combined within the presence of oxygen. Throughout static fireplace and launch the TEA-TEB is supplied by the bottom service tools. Nevertheless, because the Falcon 9 first stage is ready to propulsively land, three of the Merlin engines (E1, E5, and E9) include TEA-TEB canisters to relight for the increase again, reentry, and touchdown burns.

Second Stage

The Falcon 9 second stage is the one expendable a part of the Falcon 9. It incorporates a singular MVacD engine that produces 992 kN of thrust and an ISP of 348 seconds. The second stage is able to doing a number of burns, permitting the Falcon 9 to place payloads in a number of completely different orbits.

For missions with many burns and/or lengthy coasts between burns, the second stage is ready to be geared up with a mission extension package deal. When the second stage has this package deal it has a gray strip, which helps maintain the RP-1 heat, an elevated variety of composite-overwrapped strain vessels (COPVs) for pressurization management, and extra TEA-TEB.

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

Falcon 9 Booster

The booster supporting the CRS-27 mission is B1073-7. Because the title implies, the booster has supported six earlier missions.

Following launch, the Falcon 9 booster will conduct two burns. These burns intention to softly contact down the booster on the Autonomous Spaceport Drone Ship (ASDS) A Shortfall of Gravitas .

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

Cargo Dragon 2

The CRS-27 mission would be the third mission to the ISS for Cargo Dragon C209-3. Like its fellow Dragons C209 will hopefully return to Earth after serving its time on the ISS bringing again experiments and different cargo. It should then be refurbished and used on one other mission sooner or later.

Cargo Dragon 2 is 8.1 m (26.6 ft in) in peak and three.7 meters (12 toes) in diameter. In comparison with the unique Cargo Dragon, the upgraded spacecraft can and can routinely dock on the ISS. The previous model needed to be manually berthed by Canadarm2.

SpaceX’s Cargo Dragon spacecraft, Dragon 2, CRS-23 mission
The upgraded model of SpaceX’s Cargo Dragon spacecraft, Dragon 2 (Credit score: NASA)

The Cargo Dragon 2 shares an identical design with the Crew Dragon spacecraft meant to hold astronauts to the ISS and again to Earth. Nevertheless, there are some variations. The Cargo Dragon 2 doesn’t have SuperDraco abort engines, nor a life help system since there will likely be no human passengers on board. Within the pressurized part, the seats and crew shows have been swapped for cargo racks. The environmental management system has been additionally decreased each in dimension and complexity.

Total, the CRS-27 mission’s success standards will likely be profitable deployment of the Cargo Dragon 2 to the devoted orbit, its docking to the ISS, and restoration of the booster.

CRS-27 Countdown

All occasions are approximate

00:38:00 SpaceX Launch Director verifies go for propellant load
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 pre-launch engine chill
00:05:00 Dragon transitions to inside energy
00:01:00 Command flight laptop to start remaining prelaunch checks
00:01:00 Propellant tanks pressurize for flight
00:00:45 SpaceX Launch Director verifies go for launch
00:00:03 Engine controller instructions engine ignition sequence to start out
00:00:00 Falcon 9 liftoff


All occasions are approximate

00:01:12 Max Q (second of peak mechanical stress on the rocket)
00:02:27 1st stage most important engine cutoff (MECO)
00:02:30 1st and 2nd phases separate
00:02:38 2nd stage engine begins
00:02:42 1st stage boostback burn begins
00:03:15 1st stage boostback burn full
00:05:45 1st stage entry burn begins
00:05:59 2nd stage engine cutoff (SECO-1)
00:07:06 1st stage touchdown burn begins
00:07:33 1st stage touchdown
00:08:37 Dragon separates from 2nd stage
00:11:49 Dragon nosecone open sequence begins

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