Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
High School Electives
/
Astronomy
/
Atomic Time, GPS, and Astronomical Time Standards
Grade Level
Astronomy
AST.060 Atomic Time, GPS, and Astronomical Time Standards
0%
Skill Level
🟢 Easy
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
What information must a GPS satellite signal include for timing-based navigation to work?
A
A count of leap days since the Gregorian calendar began.
B
A precise timestamp and data for correcting the satellite clock and orbit.
C
A list of local traffic laws for every country.
D
A weather forecast for the receiver's neighborhood.
Submit Answer
