GPS coordinate system (latitude, longitude, altitude) in Drone Programming - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the latitude value represent in the GPS coordinate system?

Latitude represents the north-south position on the Earth's surface. It ranges from -90° at the South Pole to +90° at the North Pole.

beginner

What is the range of longitude values in the GPS coordinate system?

Longitude values range from -180° to +180°, representing east-west positions relative to the Prime Meridian.

beginner

Why is altitude important in drone programming using GPS coordinates?

Altitude gives the height above sea level, allowing drones to know how high they are flying, which is crucial for safe navigation and obstacle avoidance.

intermediate

How are latitude and longitude typically expressed in GPS coordinates?

They are usually expressed in decimal degrees (e.g., 37.7749°) or degrees, minutes, and seconds (DMS). Decimal degrees are easier for programming.

beginner

What is the significance of the Prime Meridian in GPS coordinates?

The Prime Meridian is the zero longitude line from which east and west longitudes are measured. It passes through Greenwich, England.

What does a positive latitude value indicate?

A East of the Prime Meridian

B South of the Equator

C North of the Equator

D West of the Prime Meridian

Positive latitude values mean locations north of the Equator.

Which value range correctly describes longitude?

A -180° to +180°

B -90° to +90°

C 0° to 360°

D -360° to +360°

Longitude ranges from -180° to +180°, covering east and west positions.

In drone GPS coordinates, what does altitude measure?

A Height above sea level

B Distance from the drone's starting point

C Distance from the Prime Meridian

D Distance from the Equator

Altitude measures how high the drone is flying above sea level.

Which coordinate format is easier to use in programming?

A Gradians

B Degrees, minutes, seconds (DMS)

C Radians

D Decimal degrees

Decimal degrees are simpler to use in calculations and programming.

Where is the Prime Meridian located?

A At the Equator

B At 0° longitude

C At 90° latitude

D At 180° longitude

The Prime Meridian is the 0° longitude line.

Explain the roles of latitude, longitude, and altitude in the GPS coordinate system for drones.

Think about how each value helps a drone know where it is in 3D space.

Describe how GPS coordinates are used to ensure safe drone flight.

Consider how a drone uses these numbers to fly safely.