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Term: Earth-received Time
Definition
Earth-received time is a term used in astronomy to describe the time at which a signal from a spacecraft or satellite is received on Earth. It represents the delay between the moment the signal is transmitted and the moment it is detected on Earth due to the finite speed of light.
Senses and Usages
- Sense: Astronomy
- Usage: When communicating with distant spacecraft, scientists need to account for earth-received time to accurately determine the position and trajectory of the spacecraft.
- Sample Sentence: The mission control team carefully calculated the earth-received time for the signal from the Voyager spacecraft, allowing them to update its trajectory.
- Sense: Technology
- Usage: In the field of telecommunications, earth-received time is essential for synchronizing signals and maintaining accurate data transmission.
- Sample Sentence: The telecommunications company invested in advanced systems to compensate for earth-received time, ensuring reliable communication with satellites.
- Sense: Science Fiction
- Usage: Earth-received time is often featured in science fiction novels and movies to create suspense and portray the challenges of interstellar communication.
- Sample Sentence: The protagonist struggled to establish contact with the alien civilization, as the massive earth-received time meant responses took years to reach him.
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