NASA Prepares To Say “Farewell” to History-Making Mars InSight Lander

Vpogled v prvi in ​​zadnji selfi

Na tej sliki se za primerjavo izmenjujeta prvi in ​​zadnji selfi Insighta. Nasin pristajalni modul InSight je s kamero na svoji robotski roki posnel te selfije 6. decembra 2018 – le 10 dni po dotiku Marsa – in 24. aprila 2022. Na pristajalnem modulu in njegovih sončnih kolektorjih je vidna debela plast prahu. poznejša slika. kredit: NASA/JPL-Caltech

Tukaj je pogled na to, kaj je potrebno za zaključek misije, ko se napajanje vesoljskega plovila InSight izprazni.

konec je blizu[{” attribute=””>NASA’s Mars InSight lander. The day is fast approaching when the spacecraft will fall silent, ending its history-making mission to reveal secrets of the Red Planet’s interior. Since the spacecraft’s power generation continues to decline as windblown dust on its solar panels thickens, the engineering team has already taken steps to continue as long as possible with what power remains. Despite these efforts, it won’t be long now, as the end is expected to come in the next few weeks.

Although InSight’s tightknit 25-to-30-member operations team – a small group compared to other Mars missions – continues to squeeze the most they can out of InSight, they’ve also begun taking steps to wind down the mission.

Here’s a glimpse of what that looks like.

InSight First Selfie Mars

This is NASA InSight’s first full selfie on Mars. It displays the lander’s solar panels and deck. On top of the deck are its science instruments, weather sensor booms, and UHF antenna. The selfie was taken on December 6, 2018 (Sol 10). Credit: NASA/JPL-Caltech

Preserving Data

With InSight (short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport), the most important of the final steps of the mission is storing its trove of data and making it accessible to researchers around the world. Already, the data from the lander has yielded details about Mars’ interior layers, its liquid core, the surprisingly variable remnants beneath the surface of its mostly extinct magnetic field, weather on this part of Mars, and lots of quake activity. More insights are sure to follow, as scientists continue to sift through the data.

READ  Unusually large fossilized flower preserved in amber identified

InSight’s seismometer, provided by France’s Centre National d’Études Spatiales (CNES), has detected more than 1,300 marsquakes since the lander touched down in November 2018. The largest quake it detected measured a magnitude 5. It even recorded quakes from meteoroid impacts. Observing how the seismic waves from those quakes change as they travel through the planet offers an invaluable glimpse into Mars’ interior. Beyond that, these observations also provide a better understanding of how all rocky worlds form, including Earth and its Moon.

NASA InSight's Final Selfie

NASA’s InSight Mars lander took this final selfie on April 24, 2022, the 1,211th Martian day, or sol, of the mission. The lander is covered with far more dust than it was in its first selfie, taken in December 2018, not long after landing. Credit: NASA/JPL-Caltech

“Finally, we can see Mars as a planet with layers, with different thicknesses, compositions,” said Bruce Banerdt of NASA’s Jet Propulsion Laboratory (JPL) in Southern California, the mission’s principal investigator. “We’re starting to really tease out the details. Now it’s not just this enigma; it’s actually a living, breathing planet.”

The seismometer readings will join the only other set of extraterrestrial seismic data, from the Apollo lunar missions, in NASA’s Planetary Data System. They will also go into an international archive run by the Incorporated Research Institutions for Seismology, which houses “all the terrestrial seismic network data locations,” said JPL’s Sue Smrekar, InSight’s deputy principal investigator. “Now, we also have one on Mars.”

Smrekar said the data is expected to continue yielding discoveries for decades.

Rocket NASA InSight Lander Launch

The rocket that launched NASA’s InSight lander to Mars in 2018 is seen at Vandenberg Air Force Base, now called Vandenberg Space Force Base. Credit: NASA/JPL-Caltech/Charles Babir

Managing Power

Earlier this summer, the lander had so little power remaining that the mission turned off all of InSight’s other science instruments in order to keep the seismometer running. They even turned off the fault protection system that would otherwise automatically shut down the seismometer if the system detects that the lander’s power generation is dangerously low.

READ  Ta čudovit skakač pajek pravzaprav ne vidi svoje najbolj žive barve

“We were down to less than 20% of the original generating capacity,” said Banerdt. “That means we can’t afford to run the instruments around the clock.”

Recently, after a regional dust storm added to the lander’s dust-covered solar panels, the team decided to turn off the seismometer altogether in order to save power. Now that the storm is over, the seismometer is collecting data again. However, the mission expects the lander only has enough power for a few more weeks.

Of the seismometer’s array of sensors, only the most sensitive were still operating, said Liz Barrett, who leads science and instrument operations for the team at JPL, adding, “We’re pushing it to the very end.”

pakiranje dvojčka

Tihi član ekipe je ForSight, inženirski model InSighta v polni velikosti pri JPL Laboratorij za opremo na kraju samem, Inženirji so uporabili Foresight, da bi vadili, kako bo InSight postavil znanstvene instrumente na površje Marsa z robotsko roko pristajalne naprave, testna tehnologija Za vstavljanje toplotne sonde pristajalne naprave lepljiva marsovska prstin načine za razvoj zmanjšajte hrup pobral seizmometer.

Foresight bo zapakiran in shranjen v skladišču. “Zapakirali ga bomo skrbno, ljubeče,” je dejal Bannert. “Bilo je odlično orodje, odličen spremljevalec za nas v tej misiji.”

JPL Engineers Foresight Insight Replika

Na testni lokaciji v JPL inženirji vadijo uvajanje instrumentov InSight z uporabo ForeSighta, replike pristajalne naprave v polni velikosti, ki bo po koncu misije zapakirana v škatlo. Mnogi inženirji nosijo sončna očala, da preprečijo svetlo rumeno svetlobo, ki posnema sončno svetlobo na Marsu. kredit: NASA/JPL-Caltech/IPGP

Razglasitev konca misije

Ko InSight zamudi dve zaporedni komunikacijski seji z vesoljskim plovilom, ki kroži okoli Marsa, je del Mars Relay Network, bo NASA misijo razglasila za prekinjeno. Vendar to pravilo velja le, če je razlog za zgrešeno komunikacijo sam pristajalni modul, je dejal vodja omrežja JPL Roy Gladden. več, NASA Deep Space Network Še kdaj bom poslušal, za vsak slučaj.

READ  Nove kalifornijske smernice za karanteno COVID so strožje od CDC – rok

Vendar ne bo storjen noben drzen korak za ponovno vzpostavitev stika z Insightom. Čeprav dogodek, ki bi rešil nalogo, kot je močan sunek vetra, ki odstrani plošče, ni nemogoč, velja za precej nemogočega.

Medtem bo ekipa nadaljevala z zbiranjem podatkov, dokler bo Insight v stiku. “Nadaljevali bomo z znanstvenimi meritvami, dokler bomo lahko,” je dejal Bannert. “Prepuščeni smo na milost in nemilost Marsa. Vreme na Marsu ni dež in sneg; vreme na Marsu sta prah in veter.”

Več o misiji

Nasin Laboratorij za reaktivni pogon (JPL) upravlja InSight za Nasin direktorat za znanstvene misije. InSight je del Nasinega programa Discovery, ki ga upravlja Marshall Space Flight Center agencije v Huntsvillu v Alabami. Lockheed Martin Space v Denverju je zgradil vesoljsko plovilo InSight, vključno z njegovim križarjenjem in pristajalno napravo, ter podpira delovanje vesoljskih plovil za misijo.

Več evropskih partnerjev podpira misijo InSight, vključno s francoskim Centre National d’Etudes Spatiales (CNES) in nemškim vesoljskim centrom (DLR). CNES je NASI skupaj z glavnim raziskovalcem IPGP (Institut de Physique du Globe de Paris) zagotovil instrument Seizmični eksperiment za notranjo strukturo (SEIS). Pomembne prispevke k SEIS je prispeval IPGP; Max Planck Institute for Solar System Research (MPS) v Nemčiji; Švicarski zvezni inštitut za tehnologijo (ETH Zurich) v Švici; Imperial College London in univerza Oxford v Združenem kraljestvu; in JPL. DLR je zagotovil instrument Heat Flow and Physical Properties Package (HP3), s pomembnimi prispevki Poljske akademije znanosti in Centra za vesoljske raziskave Astronica (CBK) na Poljskem. Španski Centro de Astrobiología (CAB) je dobavil senzorje temperature in vetra, Italijanska vesoljska agencija (ASI) pa pasivni laserski retroreflektor.

Mojca Andreja

Nagnjena je k apatiji. Nevidni raziskovalec. Vseživljenjski guru slanine. Potovalni odvisnik. Organizator. "

Related Posts

Dodaj odgovor

Vaš e-naslov ne bo objavljen.

Read also x