When will the comet hit? What will be the size of the crater? Are the astronauts in danger from the ejecta? The Comet Tracking Team will examine the comet size and distance to the moon to determine the time of impact and the ejecta distance.

Team Materials
Comet Tracking Team members will use the following materials during the preparation and during the mission:

• Instructions (1 copy per team member)
• Worksheets (1 or 2 copies per team)
• Graphs (1 or 2 copies per team member)
• Report Forms (20 report forms per team)
• Comet Tracking Diagram (1 copy per team)
• Table Tent (1 copy per team)

Real time data
The following data feeds will be given to the comet team members to be analyzed. Students will get a new set of data every 5 minutes:

• Comet size (in meters)
• Distance to the Moon (in kilometers)
• Speed (in kilometers/second)

Calculations
During the mission students will use the data feeds to perform the following calculations:

• Time to impact (in seconds and hours)
• Distance reached by "ejecta" thrown up by the impact (in kilometers)
• Size of crater (in kilometers)

Decisions
The Comet Team members will make calculations, graph data, plot the path of the comet and answer very important questions:

• When will the comet hit?
• What will be the size of the crater?
• How far will the ejecta travel?