Autor Wątek: Mars Rover 2020  (Przeczytany 42437 razy)

0 użytkowników i 1 Gość przegląda ten wątek.

Offline Orionid

  • Weteran
  • *****
  • Wiadomości: 9754
  • Very easy - Harrison Schmitt
Odp: Mars Rover 2020
« Odpowiedź #345 dnia: Lipiec 04, 2019, 12:44 »
Technologia TRN (Terrain Relative Navigation) zwiększa szanse dokładnego lądowania do poziomu ok. 99%

A Neil Armstrong for Mars: Landing the Mars 2020 Rover
JULY 1, 2019


NASA's Mars 2020 mission will have an autopilot that helps guide it to safer landings on the Red Planet.Credit: NASA/JPL-Caltech

(...) "The data is in - TRN works," said Chen. "Which is a good thing because Jezero is where our scientists want to be. And without TRN, the odds of successful landing at a good location for the rover are approximately 85%. With TRN, we feel confident we are up around 99%."

<a href="http://www.youtube.com/watch?v=NdNuyznPpbs" target="_blank">http://www.youtube.com/watch?v=NdNuyznPpbs</a>
https://www.youtube.com/watch?list=PLTiv_XWHnOZqCrMU2ppcLjRn1zlDkNx3q&v=NdNuyznPpbs
(...)
https://www.jpl.nasa.gov/news/news.php?feature=7442

Offline ekoplaneta

  • Weteran
  • *****
  • Wiadomości: 6526
  • One planet Once chance
Odp: Mars Rover 2020
« Odpowiedź #346 dnia: Lipiec 04, 2019, 13:45 »
Około miesiąc temu łazikowi Mars Rover 2020 przyprawiono maszt z kamerami:

In this image, taken on June 5, 2019, engineers at NASA's Jet Propulsion Laboratory in Pasadena, California, take a moment after attaching the remote sensing mast to the Mars 2020 rover in the Spacecraft Assembly Facility's High Bay 1 clean room. Full integration of the mast — a process that includes installation of science instrument sensors, electrical wiring and checkout — continued into the following week, concluding on June 11.

During Mars 2020's launch, interplanetary cruise, and its fast and fiery descent toward the Martian surface, the mast will be in stowed flat on the rover's deck. Soon after touchdown, the mast (which tops out at over 7 feet, or 2.2 meters) will be raised to provide a high perch for the SuperCam, Mastcam-Z and Mars Environmental Dynamics Analyzer instruments as well as four Navcam engineering cameras.







https://mars.nasa.gov/news/8450/the-mast-is-raised-for-nasas-mars-2020-rover/

Ostatnio zaś zainstalowano ramię z instrumentami naukowymi:

In this image, taken on June 21, 2019, engineers at NASA's Jet Propulsion Laboratory in Pasadena, California, install the main robotic arm on the Mars 2020 rover. (A smaller arm to handle Mars samples will be installed inside the rover as well.) The main arm includes five electrical motors and five joints (known as the shoulder azimuth joint, shoulder elevation joint, elbow joint, wrist joint and turret joint). Measuring 7 feet (2.1 meters) long, the arm will allow the rover to work as a human geologist would: by holding and using science tools with its turret, which is essentially its "hand."

"You have to give a hand to our rover arm installation team," said Ryan van Schilifgaarde, a support engineer at JPL for Mars 2020 assembly. "They made an extremely intricate operation look easy. We're looking forward to more of the same when the arm will receive its turret in the next few weeks."

The rover's turret will include high-definition cameras, science instruments, and a percussive drill and coring mechanism. Those tools will be used to analyze and collect samples of Martian rock and soil, which will be cached on the surface for return to Earth by a future mission.




https://mars.nasa.gov/news/8454/mars-2020-rovers-7-foot-long-robotic-arm-installed/

Offline artpoz

  • Senior
  • ****
  • Wiadomości: 649
Odp: Mars Rover 2020
« Odpowiedź #347 dnia: Lipiec 13, 2019, 18:15 »
Timelapsowy filmik z montażu tymczasowych kół.

https://www.youtube.com/watch?v=eDh2Jz3hKjU

<a href="http://www.youtube.com/watch?v=eDh2Jz3hKjU" target="_blank">http://www.youtube.com/watch?v=eDh2Jz3hKjU</a>

Offline artpoz

  • Senior
  • ****
  • Wiadomości: 649
Odp: Mars Rover 2020
« Odpowiedź #348 dnia: Lipiec 26, 2019, 22:46 »
Timelapsowy filmik z składania ramienia robota.

https://www.youtube.com/watch?v=aT9kxH894lo

<a href="http://www.youtube.com/watch?v=aT9kxH894lo" target="_blank">http://www.youtube.com/watch?v=aT9kxH894lo</a>

Offline ekoplaneta

  • Weteran
  • *****
  • Wiadomości: 6526
  • One planet Once chance
Odp: Mars Rover 2020
« Odpowiedź #349 dnia: Sierpień 01, 2019, 10:00 »
Rozpoczęło się napełnianie MMRTG dla łazika Mars Rover 2020:

NASA's Associate Administrator for the Science Mission Directorate, Thomas Zurbuchen, has given the go-ahead to begin fueling the Mars 2020 rover's Multi-Mission Radioisotope Thermoelectric Generator, or MMRTG. The generator will power the rover and help keep it warm while exploring the Red Planet.

MMRTG może dostarczyć 110 W energii dla łazika.

"We are advancing on all fronts — including completion of the cruise stage that will guide us to Mars and the sky crane descent landing system that will gently lower us to the surface," said Project Manager John McNamee of NASA's Jet Propulsion Laboratory, which manages the mission in Pasadena, California. "And the rover is not only looking more and more like a rover each day, it's acting like one."

With the exception of incorporating the Adaptive Caching Assembly, with its seven motors and more than 3,000 parts, work on the Mars 2020 rover's interior is 100% complete. On the exterior, the most visible additions have been the remote sensing mast, the mobility suspension system, the main robotic arm and the rover's high-gain antenna. The external components of the Mastcam-Z and SuperCam science instruments have been installed on the high perch of the remote sensing mast, and the PIXL and SHERLOC instruments' turret assemblies have been added onto the end of the robotic arm.




https://mars.nasa.gov/news/8495/fueling-of-nasas-mars-2020-rover-power-system-begins/