Tuesday, May 9, 2023

3991 - ARTEMIS SPACE MISSION - humans on the moon?

 

      -    3991  -  ARTEMIS  SPACE  MISSION  -  humans on the moon?  Artemis 2 will be the first mission to carry humans to the moon's vicinity since 1972.  Artemis 2 is the second scheduled flight of the Artemis program and the first crewed Artemis mission.


      -----------  3991  -   ARTEMIS  SPACE  MISSION  -  humans on the moon?

            -    During Artemis 2, four astronauts, commander Reid Wiseman, pilot Victor Glover and mission specialists Christina Koch and Jeremy Hansen will fly around the moon before returning to Earth. The roughly 10-day-long mission is tentatively scheduled to launch in November 2024.

            -

            -    Artemis 2 will use the huge “Space Launch System” (SLS) megarocket and Orion spacecraft to launch the crew on the lunar flyby mission. The astronauts and mission controllers will collect data on Orion and the crew's performance to assess how ready the Artemis program is to send people to the moon's surface.

            -

            -    NASA successfully launched Artemis 1 on November 16, 2021, from NASA's Kennedy Space Center in Florida. The mission collected radiation data and engineering data to assess the SLS and Orion spacecraft's readiness to carry humans.

            -

            -    The crewed Artemis 2 mission requires new spacesuits that are built to endure the cislunar environment, which has more radiation than inside low Earth orbit where astronauts receive more protection.

            -

            -    Artemis 2 will be the first major test of the SLS and Orion spacecraft systems with humans on board. The mission will aim to hit four major metrics of readiness,  mission planning, system performance, crew interfaces and guidance and navigation systems.

            -

            -    The mission path will see Orion take an orbit around Earth known as "hybrid free return," which will see the spacecraft orbit Earth twice to pick up speed for the trans-lunar injection.  Orion will then swing around the moon on a "free-return trajectory" to make a direct return back to our planet.

            -

            -    The mission is expected to last between eight and 10 days, but may be extended to as many as three weeks depending on the mission objectives. The four astronauts on board Artemis 2 will be the furthest people to fly from Earth after 1970's Apollo 13, assuming the new mission reaches its expected maximum altitude of 5,523 miles above the moon's surface.

            -

            -    The mission will need to achieve the following milestones:

            -

            -    Launch from NASA's Kennedy Space Center's Launch Pad 39B to low-Earth orbit.

            -

            -    A maneuver in Earth orbit to raise the perigee, or the lowest point of the orbit, roughly 40 minutes after liftoff. This will be performed with the SLS “Interim Cryogenic Propulsion Stage” (ICPS).

            -

            -   A burn to raise the apogee, or highest part of the orbit, again using the ICPS.

            -

            -    A system check at 42 hours after the mission begins to ensure the orbit is correct, ranging from 112 miles at the closest point to Earth and 1,616 miles at its highest point.

            -

            -    The ICPS will be disposed and Orion will do a translunar injection to fly to the moon. The trip to the moon will take four days and have a maximum altitude of 5,523 miles above the moon's surface.

            -

            -   The spacecraft will return home. Once the spacecraft is close to Earth, the crew module will separate from the European Service Module and the crew module adapter, allowing for splashdown in the Pacific Ocean.

            -

            -    Investigators working with Artemis 2 will spend several months at the least analyzing data. The next mission in line is a landing mission called “Artemis 3”, which will land on the surface of the moon in 2025 if all goes to plan.

            -

            -   Assuming Artemis 3 lands on the surface in 2025, that will be the first landing mission by humans since NASA's Apollo 17 in 1972.

            -

            May 9, 2023    ARTEMIS  SPACE  MISSION  -  humans on the moon?     3991                                                                                                                          

            ----------------------------------------------------------------------------------------

            -----  Comments appreciated and Pass it on to whomever is interested. ---

            ---   Some reviews are at:  --------------     http://jdetrick.blogspot.com ----- 

            --  email feedback, corrections, request for copies or Index of all reviews

            ---  to:  ------    jamesdetrick@comcast.net  ------  “Jim Detrick”  -----------

            --------------------- ---  Tuesday, May 9, 2023  ---------------------------------

-

 

 

 

 

         

 

 

No comments:

Post a Comment