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SpaceX CRS-5

SpaceX CRS-5
CRS-5 Dragon on approach to the ISS
Mission type ISS resupply
Operator NASA
COSPAR ID 2015-001A
SATCAT № 40370
Mission duration Planned: 1 month
Elapsed: 32 days
Spacecraft properties
Spacecraft type Dragon
Manufacturer SpaceX
Start of mission
Launch date 10 January 2015, 09:47:10 UTC (2015-01-10T09:47:10Z)
Rocket Falcon 9 v1.1
Launch site Cape Canaveral SLC-40
Contractor SpaceX
End of mission
Disposal Recovered
Landing date Did not recognize date. Try slightly modifying the date in the first parameter.[1]
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 410 km (250 mi)[2]
Apogee 418 km (260 mi)[2]
Inclination 51.65 degrees[2]
Period 92.71 minutes[2]
Epoch 12 January 2015, 09:01:38 UTC[2]
Berthing at ISS
Berthing port Harmony nadir
RMS capture 12 January 2015, 10:54 UTC[3]
Berthing date 12 January 2015, 13:54 UTC[4]
Unberthing date 10 February 2015, 17:11 UTC
RMS release 10 February 2015, 19:10 UTC
Time berthed 29 days, 3 hours, 17 minutes

← SpaceX CRS-4 SpaceX CRS-6

SpaceX CRS-5, also known as SpX-5, was a cargo resupply mission to the International Space Station, conducted by SpaceX for NASA, and was launched on 10 January 2015 and ended on 11 February 2015. It was the seventh flight for SpaceX's uncrewed Dragon cargo spacecraft and the fifth SpaceX operational mission contracted to NASA under an ISS resupply services contract.


  • Launch history 1
  • Primary payload 2
  • Post-launch flight test 3
    • Results of first landing attempt 3.1
  • References 4
  • External links 5

Launch history

Launch of the Falcon 9 rocket carrying CRS-5

By July 2014, the launch was scheduled by NASA for "no earlier than" December 2014, with docking to the station projected to occur two days after launch.[5] Originally scheduled for a 16 December 2014, launch, the mission was changed to 19 December 2014, in order to give SpaceX more preparation time for a successful launch. The launch was postponed again to NET 6 January 2015, in order to allow more tests before committing to a firm launch date.[6][7]

On 6 January 2015, the launch attempt was placed on hold at 1 minute 21 seconds prior to scheduled lift-off after a member of the launch team noticed actuator drift on one of two thrust vector control systems of the Falcon 9 second stage engine.[8] As this launch had an instantaneous launch window, meaning no delays are possible in the launch sequence, the flight was postponed to 9 January 2015.[8] On 7 January, the flight was rescheduled for 10 January 2015.[9]

The Falcon 9 rocket carrying the CRS-5 Dragon spacecraft successfully launched on 10 January 2015 at 9:47 UTC.[10] Dragon reached the station on 12 January. It was grappled by the Space Station Remote Manipulator System at 10:54 UTC and berthed to the Harmony module at 13:56 UTC.[11]

Primary payload

The Dragon spacecraft for CRS-5 carried 2,317 kilograms (5,108 lb) of cargo to the ISS. Included in this was 490 kg (1,080 lb) of provisions and equipment for the crew, 717 kg (1,581 lb) of station hardware, 577 kg (1,272 lb) of science equipment and experiments, and the 494 kg (1,089 lb) Cloud Aerosol Transport System (CATS).[10]

CATS is a LIDAR remote sensing instrument designed to measure the location, composition and distribution of pollution, dust, smoke, aerosols and other particulates in the atmosphere. CATS is to be installed on the Kibo external facility and is expected to run for at least six months, and up to three years.[12][13][14]

Post-launch flight test

CRS-5 Dragon aboard recovery ship

In an unprecedented[15] test flight, SpaceX attempted to return the nearly-empty first stage of the Falcon 9 through the atmosphere and land it on a 90-by-50-meter (300 ft × 160 ft) floating platform called the autonomous spaceport drone ship.[7] In October 2014, SpaceX had revealed that the ship was being built for SpaceX in Louisiana,[16] and by mid-December, the ship was docked in Jacksonville, Florida, ready to go to sea to support the test flight landing attempt.[17]

Results of first landing attempt

SpaceX attempted a landing on the drone ship on 10 January. Many of the test objectives were achieved, including precision control of the rocket's descent to land on the platform at a specific point in the south Atlantic ocean and a large amount of test data was obtained from the first use of grid fin control surfaces used for more precise reentry positioning. However the landing was a hard landing and SpaceX is currently working to recover parts of the vehicle for testing and analysis. Full details of what happened to the rocket are not yet publicly known;[15] Musk himself has said that one of the possible problems was the grid fins running out of hydraulic fluid.[18]

The SpaceX webcast indicated that the boostback burn and reentry burns for the descending first stage occurred, and that the descending rocket then went "below the horizon," as expected, which eliminated the live telemetry signal. Shortly thereafter, SpaceX released information that the rocket did get to the drone spaceport ship as planned, but "landed hard ... Ship itself is fine. Some of the support equipment on the deck will need to be replaced."[15][19][20][21][22] SpaceX made a video of the landing attempt available on Vine.[23]


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External links

  • NASA Commercial Resupply launch hub
  • SpaceX CRS-5 mission press kit
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