Dragon – Rendezvous and Grappling – CRS-1

Rendezvous COTS 2,3
COTS 2,3 Dragon Rendezvous with the International Space Station
Image Credit: SpaceX

Acronyms.

NASA TV provides coverage of the SpaceX/Dragon rendezvous and grappling. SpaceX will also provide coverage.

Events for this evening and tomorrow morning:

  • Height adjust burns start adjusting altitude higher toward station
  • COTS Ultra-high Frequency Communication Unit (CUCU) and on-board UHF communication system between Dragon
    and ISS is configured
  • Height adjust burn: Dragon begins burns that bring it within 2.5 km of station (go/no-go)
  • Dragon receives and sends information from/to the CUCU unit on station
  • Height adjust burn brings Dragon 1.2 km from station (go/no-go)
  • Height adjust burn carries Dragon into the station’s approach ellipsoid (go/no-go)
  • Dragon holds at 250 meters (go/no-go) for confirmation of proximity sensors targeting acquisition
  • Dragon begins R-Bar Approach
  • Dragon holds at 30 meters (go/no-go)
  • Dragon holds at capture point, 10 meters below the station (go/no-go)
  • Crew captures Dragon using the station’s robotic arm (SSRMS)
  • Dragon is attached to the station

This means 3:30 AM Phoenix time with grappling scheduled for roughly 4:00 to 4:30 AM tomorrow morning (11:00 UTC).

We will keep making updates here.

Dragon - ISS
Dragon Chasing the International Space Station about 8:30 PM Phoenix time
Image Credit: kevlar on You Tube

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