Intii baraha ay diyaariyso lug-ku-dhac buuqda oo leh Artemis, mid-problem gaar ah ayaa timid oo dadka badan uma fikrin: waqtiga maxaa ah buuqda? Aprilka 2, 2024, White House Office of Science and Technology Policy (OSTP) amar NASA inay aasaasdo Coordinated Lunar Time, ama LTC, dhamaad 2026.
Maxaa loola baahan karo buuqda waqti gaar ah
Dhulka, waxa aannu tilmaami jirnaa Coordinated Universal Time (UTC), oo ay xaqiijisaa shabakad 400+ saacado atomic oo jira caalanka. GPS satellites, systems financial, grids power, iyo internet oo dhan waxa ay xaqiiji jirtaa synchronization saxaraha ah oo UTC.
Buuqda waxa ay ka-hor hawsh gaar ah. Sababtoo ah gravity buuqda oo yar yihiin dhulka, relativity guud waxa ay oggolaataa saacado buuqda ay jirtaa 56.02 microseconds degdeg maalin dhulka. Dhacdadan — tilmaami Einstein's general theory of relativity — waxa ay macsalaata in relay dhulka oo buuqda ay karti tahay inay buuq ay si siman ay xaqiiji jirtay.
Maalin mid, 56 microseconds waxa ay gebi-ahaan yar tahay. Piti navigation systems, drift waxa ay karti tahay inay sababo position errors oo 16 meters maalin. Buuwan mid, errors waxa ay gaari karaan 500 meters — maxaa ay dhib gelineysa precision landings, rover navigation, iyo communication relay timing.
Sidee LTC ay u shaqeynayso
Coordinated Lunar Time waxa ay lagu adeegsan doonaa aasaas UTC piti ay lagu hagaajiyay lunar environment. Tilmaamahu waxa ay kaashantu network saacado atomic oo buuqda lagu dhigay — iyo qoraalada ay ku mid ah ay lagu xisaabin doonaa official lunar time.
LTC waxa ay adeegsanaysaa fixed, well-defined relationship oo UTC sidaa oo waqtu ay si siman socdsiixi karo dhulka iyo buuqda. Farqiga keyga waxa ay tilmaama relativistic offset — cumulative drift oo saacado buuqda ay degdeg tahay.
National Institute of Standards and Technology (NIST) waxa ay bushaday technical framework Agoosto 2024 oo fasifa sidii loo kaadi kaadi karo lunar time scale laga UTC corrections relativistic.
Shaqa Caasimad
Lunar timekeeping maaha project NASA oo keliya. United Nations International Committee on Global Navigation Satellite Systems (ICG) waxa ay aasaasday kooxda shaqo gaar ah 2024 ee standard-qaadinta waqtiga buuqda internationally. Artemis Accords — oo saxiixday 50+ dalal — waxa ay oggolaataa bahaarka systems-oo-iskaashi ah buuqda — iyo mid-qaybeedka waqti waxa ay wajahan asasiga.
European Space Agency (ESA) waxa ay tuuray lunar timekeeping sida qayb ee Moonlight initiative, ee tilmaamaysaa communication iyo navigation services buuqda.
Maxaa LTC macsalaata anapaneoʻo-ka
Standard waqti lunar waxa ay awood siisaa precision navigation landers iyo rovers, reliable communication scheduling dhulka iyo buuqda, coordination walaalo missions kala duwan space agencies, iyo ku dhawaada asas waqti Mars iyo gidis.