Download Learnerz IAS app from the Play Store now! Download



Time standard for moon UPSC NOTE

 NASA’s Mission

  • In September 2025, NASA’s four-member Artemis crew is scheduled to fly around the moon in preparation for the space agency’s mission to land on the moon again.

  • To support such missions, the White House Office of Science and Technology Policy (OSTP) has directed NASA to establish a Coordinated Lunar Time (LTC) to standardise time-telling on the moon.

  • The LTC will be the standard to measure cislunar operations with the earth’s UTC Coordinated Universal Time (UTC)

  • The project falls under the current administration’s National Cislunar Science and Technology Strategy.

Brief History

  • The idea for the UTC was formulated in the 1960s

  • Atomic clocks are known for their extreme accuracy

  • A weighted average of hundreds of atomic clocks produces the International Atomic Time (TAI).

  • Solar time on the other hand is calculated by measuring the earth’s rotation relative to the Sun, and is variable in nature.

  • The UTC was designed to accommodate the difference between solar time and atomic time, and is kept within 0.9 seconds of solar time to follow the earth’s rotational variations and within an exact number of seconds of the TAI.

  • Currently, moon missions follow the time of the country that operates the spacecraft, while clocks on the International Space station run on the UTC

Need for change

  • There’s currently no standardised time for cislunar operations.

  • The White House’s Celestial Time Standardisation policy seeks to assign a time standard to each celestial body and its surrounding space environment, focusing on the lunar surface and missions operating in cislunar space.

  • It outlines the four features such a standard must possess: “traceability to the UTC”, “scalability beyond the earth-Moon system”, “accuracy for precision navigation and science”, and “resilience to loss of contact with the earth”.

  • Unlike the earth, however, the moon will have only one time zone and daylight saving will be unnecessary.

  • Various space agencies around the world are currently planning to establish a permanent human presence on the moon.

  • A system like the LTC could help coordinate their activities with each other and with their respective ground stations as well as, in future, lay the foundation for a dedicated lunar satellite navigation system by 2030.

  • This system will function similar to how the Global Positioning System does on the earth



Amritsar,1,April 2024,301,Art & Culture,1,August 2023,251,Courses,7,Daily Current Affairs,48,December 2023,189,Disaster Management,2,Environment and Ecology,54,February 2024,228,Foundation Course,1,GDP,1,GEMS Club,1,GEMS Plus,1,Geography,67,Govt Schemes,2,GST,1,History,2,Home,3,IAS Booklist,1,Important News,71,Indian Economy,46,Indian History,2,Indian Polity,56,International Organisation,12,International Relations,58,Invasive Plant,1,January 2024,240,July 2023,281,June 2022,6,June 2023,268,March 2024,238,May 2022,17,May 2024,233,Mentorship,2,November 2023,169,October 2023,203,Places in News,2,Science & Technology,66,September 2023,205,UPSC CSE,111,
Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Time standard for moon UPSC NOTE
Time standard for moon UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content