When the Dragon capsule docks with the ISS, they will be using the IDA (international docking adapter). It allows spacecraft of many nations to dock with the ISS. There's a link in the press kit for it, so of course I had to go look.
It's assembled by Boeing but it's amazingly similar to the docking adapter used for the Apollo Soyuz mission in 1975. And RSC Energia (Russian space agency) built many of the main parts. Take a look-
Meet the International Docking Adapter
Our spacecraft use a probe type/male to female docking system. Probe from the spacecraft goes into the docking adapter and achieves a "soft" dock. Winches within the adapter then physically "pull" the craft into the adapter, achieving a "hard" dock. And I can bet every single astronaut used the docking process as "chat her up" material to any cute girl he met
The IDA also has the "paddles" used on Soviet Soyuz spacecraft. Their craft dock physically against the docking adapter (their "soft dock") then paddle looking things clamp around the nose of the craft which makes the "hard" dock.
This is a space geek post, (in my case a space goober post
but the equipment is as fascinating as the flight itself.
They're doing Delta V burns right now. One OMS pod of thrusters is reading temp low but they're working.
Delta V burns are small rocket burns which change the velocity of the spacecraft. A number of these are done to change the orbit height and declination (angle relative to the ISS) to make it a simple process to dock.
They're a minute or two from a phase burn-this is a major course change burn. That is a big change in Delta V, the small Delta V burns just make the process easier.
Capsule mission control is in Hawthorne CA-interesting!