SpaceX CRS-19, also known as SpX-19, was a Commercial Resupply Service mission to the International Space Station.^[6] The mission is contracted by NASA and was flown by SpaceX on a Falcon 9 rocket.

Quick Facts Mission type, Operator ...

SpaceX CRS-19

Dragon C106.3 approaches the ISS
Mission type	ISS resupply
Operator	SpaceX
COSPAR ID	2019-083A
SATCAT no.	44821
Mission duration	32 days, 22 hours, 12 minutes
Spacecraft properties
Spacecraft	Dragon C106.3
Spacecraft type	Dragon CRS
Manufacturer	SpaceX
Dry mass	4,200 kg (9,300 lb)
Dimensions	Height: 6.1 m (20 ft) Diameter: 3.7 m (12 ft)
Start of mission
Launch date	5 December 2019, 17:29:24 (2019-12-05UTC17:29:24) UTC[1]
Rocket	Falcon 9 B1059.1
Launch site	Cape Canaveral SLC-40
Contractor	SpaceX
End of mission
Disposal	Recovered
Landing date	7 January 2020, 15:42 (2020-01-07UTC15:43) UTC[2]
Landing site	Pacific Ocean
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Inclination	51.6°
Berthing at ISS
Berthing port	Harmony nadir[3]
RMS capture	8 December 2019, 10:05 UTC[4]
Berthing date	8 December 2019, 12:47 UTC[3]
Unberthing date	7 January 2020, 08:41 UTC
RMS release	7 January 2020, 10:05 UTC[2]
Time berthed	29 days, 19 hours, 54 minutes
Cargo
Mass	2,617 kg (5,769 lb)[5]
Pressurised	1,693 kg (3,732 lb)[5]
Unpressurised	924 kg (2,037 lb)[5]
Commercial Resupply Services ← NG-12 NG-13 →   Cargo Dragon ← SpaceX CRS-18 SpaceX CRS-20 →

Close

Dragon capsule C106 made its third flight on CRS-19 having previously flown on CRS-4 and CRS-11. Dragon successfully returned to Earth on 7 January 2020 after a month-long stay at the ISS.

In February 2016, it was announced that NASA had awarded a contract extension to SpaceX for five CRS additional missions (CRS-16 to CRS-20).^[7] In June 2016, a NASA Inspector General report had this mission manifested for December 2018.^[8] The mission was later delayed to 15 October 2019,^[9] but launched in December 2019.^[6]

On 5 December 2019, CRS-19 launched successfully, followed by a successful first stage landing on the barge Of Course I Still Love You.^[10]

NASA has contracted for the CRS-19 mission from SpaceX and therefore determines the primary payload, date/time of launch, and orbital parameters for the Dragon space capsule. CRS-11 carried a total of 2,617 kg (5,769 lb) of material into orbit. This included 1,693 kg (3,732 lb) of pressurised cargo with packaging bound for the International Space Station, and 924 kg (2,037 lb) of unpressurised cargo composed of the Kibō-mounted Hyperspectral Imager Suite (HISUI) from Japan, the Robotic Tool Stowage (RiTS) platform, and a replacement lithium-ion battery for the station's solar array truss.^[5][1]

The following is a breakdown of cargo bound for the ISS:^[5]

• Science investigations: 977 kg (2,154 lb)
• Crew supplies: 256 kg (564 lb)
• Vehicle hardware: 306 kg (675 lb)
• Spacewalk equipment: 64 kg (141 lb)
• Computer resources: 15 kg (33 lb)
• External payloads:
  • Hyperspectral Imaging Suite (HISUI): ~500 kg (1,100 lb)^[11]
  • Robotic Tool Stowage (RiTS)^[12]
  • Lithium-ion battery

Among the science experiments transported to the station are the Anheuser-Busch-sponsored Germination of ABI Voyager Barley Seeds in Microgravity, the Confined Combustion experiment, and 40 genetically engineered mice as part of the Rodent Research-19 experiment.^[12][13]

A number of CubeSats were launched on CRS-19. The ELaNa-25B flight included AzTechSat-1, SORTIE, and CryoCube, while the ELaNa-28 flight included CIRiS and EdgeCube.^[12] Other small satellites launched on this mission include QARMAN and MakerSat-1.^[13]

• Uncrewed spaceflights to the International Space Station