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Answers to Worksheet 6.3

1. The shuttle passed over Cuba in orbit 11. One orbit later, orbit 12, the shuttle passed over Texas. How many minutes elapsed between when the shuttle passed over Cuba and when it passed over Texas? 90 minutes
Explanation: Each shuttle orbit around the world is approximately 90 minutes.

2. Do any of the orbits cross the West Coast? yes
   If so, which one(s)? 13 and 14

3. Do any of the orbits cross the East Coast? no
   If so, which one?

4. Can you photograph both coasts on any one of these orbits, 11-14? no
Explanation: None of the orbits, 11-14, cross both coasts.

5. Is there an orbit that crosses your state?
   If so, which one? Orbit 13 crosses over the state of California.

6. Which state does orbit 14 cross? Orbit 14 crosses Oregon, Idaho, Washington and Montana.

7. a) About how long does it take the shuttle to cross the U.S. on orbit 12? (Hint: Count the tick marks; remember 1 tick mark equals 1 minute.) 7 minutes

   b) Using your answer from (a) above, determine how many miles the shuttle travelled across the U.S. in orbit 12. (Remember, the shuttle travels at 5 miles/second.)
7 minutes x 60 seconds/minute x 5 miles/second=2100 miles


10/03/96

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