Back at the control room at Houston, the lunar landing team is getting ready to land on the moon. They're using the landers' instruments to confirm the landing's location, and they're also using the rover's own instruments to check the accuracy of the landing signal. It's all very well and good, but it's not a good idea to wait until the guys are done with their work before they can talk to each other. This is what we're talking about here. The guys are going to use the rovers' cameras to confirm that the landing is on the right track, and then they'll use the lander's instruments to make sure the landing site is exactly where they want it to be.
Back at the control room at Houston, the lunar landing team is getting ready to land on the moon. They're using the landers' instruments to confirm the landing's location, and they're also using the rover's own instruments to check the accuracy of the landing signal. It's all very well and good, but it's not a good idea to wait until the guys are done with their work before they can talk to each other. This is what we're talking about here. The guys are going to use the rovers' cameras to confirm that the landing is on the right track, and then they'll use the lander's instruments to make sure the landing site is exactly where they want it to be.