1
00:00:01,100 --> 00:00:04,700
Challenge 5 Here's what we know.

2
00:00:04,700 --> 00:00:08,700
We've done our best work, and it seems that we've regained control of the satellite.

3
00:00:08,860 --> 00:00:10,600
But how do we know for sure?

4
00:00:10,980 --> 00:00:12,160
The challenge?

5
00:00:12,180 --> 00:00:17,600
Teams must prove that we are fully in control of the satellite system by successfully imaging the moon.

6
00:00:17,700 --> 00:00:18,980
Here's how they do it.

7
00:00:18,980 --> 00:00:27,840
By now, teams should have restored the command and data handling system, repaired the Attitude Determination and Control System, ADCS, and resumed payload operation.

8
00:00:27,840 --> 00:00:29,800
But their work is not done.

9
00:00:29,800 --> 00:00:44,680
They must now figure out the satellite's current orientation by sending commands to the command and data handling system, which will in turn provide essential readings back to the team and enable them to issue commands to point the satellite and imager payload at the moon using the ADCS.

10
00:00:44,800 --> 00:00:51,780
Once the imager payload is lined up to the moon, the next command will tell the imager to take a picture and save it onboard the satellite.

11
00:00:51,780 --> 00:00:56,380
The next time the satellite passes over a ground station, this image will be downloaded.