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NASA confirmed the Artemis II crew completed the apogee raise burn on April 2, increasing Orion’s orbital high point. The mission now transitions toward a proximity operations demonstration that will test manual spacecraft control near another object. Engineers continue to monitor a minor onboard system issue as the crew prepares for the next phase.

The spacecraft climbed higher. The mission grew more precise.

The National Aeronautics and Space Administration confirmed that Artemis II successfully executed its apogee raise maneuver, a key step in refining the Orion spacecraft’s orbit around Earth. The burn, powered by the interim cryogenic propulsion stage’s RL10 engine, increased the spacecraft’s highest orbital point and aligned it for upcoming tests.

The maneuver follows earlier orbital adjustments and forms part of a carefully sequenced plan to prepare Orion for operations beyond low Earth orbit. NASA officials said the spacecraft remains in stable condition, with power generation and thermal systems operating within expected limits.

Artemis II apogee raise burn and orbit shaping

The apogee raise burn works in tandem with the previously completed perigee adjustment. Together, these maneuvers define the shape and altitude of Orion’s orbit, ensuring the spacecraft is positioned correctly for subsequent demonstrations and trajectory changes.

Mission controllers at Johnson Space Center continue to track performance data, confirming that propulsion and navigation systems responded as expected.

Ahead of the burn, astronauts also began configuring the spacecraft for sustained operations in orbit. That included routine system checks such as evaluating the onboard toilet system. During that procedure, the crew reported a blinking fault light, which engineers are now analyzing.

NASA has not indicated that the issue affects mission safety, but teams are working with the crew to identify its cause and resolve it.

Trajectory for Artemis II, NASA’s first flight with crew aboard SLS, Orion to pave the way for long-term return to the Moon, missions to Mars

Proximity operations demonstration and manual control testing

The next phase of Artemis II will focus on proximity operations, a critical test of Orion’s ability to maneuver near another spacecraft.

The demonstration will use the detached upper stage of the Space Launch System as a reference target. Astronauts will guide Orion, named Integrity, through a series of controlled movements to evaluate how the spacecraft performs under manual control.

Before the maneuver begins, communications will transition from NASA’s Near Space Network to the Deep Space Network, systems that support spacecraft from launch through deep-space operations.

During the approximately 70-minute exercise, Orion will approach the upper stage to within about 300 feet before pausing. The crew will then take manual control, using onboard hand controllers to make precise adjustments and assess responsiveness.

At a closer range of roughly 30 feet, astronauts will evaluate the spacecraft’s fine handling capabilities. These maneuvers will rely on the reaction control system thrusters located on Orion’s European-built service module.

NASA said the demonstration also includes an automated backflip maneuver, allowing Orion to reorient and face the target stage. The test will generate detailed data on navigation and control systems, including measurements from the spacecraft’s docking camera.

These data points are expected to inform future missions that require rendezvous and docking in lunar orbit, where traditional GPS systems are not available.

Preparing for future lunar operations

At the conclusion of the demonstration, Orion will execute an automated departure burn to safely distance itself from the upper stage. The stage will then perform a disposal maneuver, re-entering Earth’s atmosphere over a remote region of the Pacific Ocean.

NASA said the spacecraft’s systems remain stable as the crew transitions into this next phase. Solar arrays continue to generate power, and environmental conditions inside Orion remain within predicted ranges.

Public interest in the mission’s technical milestones remains high. “This is the kind of test that proves whether astronauts can really control the vehicle in deep space,” wrote Reddit user LunarOpsWatcher in a post with more than 1,100 upvotes, highlighting the importance of manual maneuvering capabilities.

Artemis II is designed as a test mission, but each milestone carries implications for future exploration. The proximity operations demonstration, in particular, addresses a key requirement for sustained human activity beyond Earth orbit.

With the apogee burn complete, Orion now moves into one of its most intricate tests yet.

Also Read:

Artemis II Mission Launch: NASA Sends Crew on First Moon Flyby in 50 Years

Artemis II Update-1: Orion Completes Proximity Operations, Perigee Burn Next

Artemis II Update-2 : Perigee Raise Burn Completed with brief Communications Loss, NASA Probes

NASA confirmed the Artemis II crew completed a perigee raise maneuver on April 2, refining Orion’s orbit around Earth. A brief communications loss occurred shortly after the burn but was quickly resolved with no reported impact on crew safety. The agency will hold a press conference from Kennedy Space Center as the mission prepares for its next orbital milestone.

A routine engine burn sharpened Artemis II’s orbit. Minutes later, mission control lost contact. Then the signal came back.

The National Aeronautics and Space Administration said the Orion spacecraft successfully completed its perigee raise maneuver, one of the key early steps in shaping its path around Earth. The burn used the interim cryogenic propulsion stage’s RL10 engine to lift the spacecraft’s lowest orbital point, refining its trajectory for later mission phases.

The maneuver followed earlier orbital adjustments and forms part of a sequence designed to prepare Orion for operations beyond low Earth orbit. NASA officials said the burn occurred as planned, with precise timing required to achieve the desired orbital change.

Artemis II perigee raise burn and orbital adjustments

The perigee raise maneuver increases the spacecraft’s minimum altitude during its orbit. Along with a separate apogee raise burn, which affects the highest orbital point, these adjustments create a stable and elongated orbit suitable for further testing.

NASA said these burns are critical in preparing Orion for a planned high Earth orbit phase lasting about 23.5 hours. During that period, astronauts and ground teams will conduct system checkouts before committing to the next stage of the mission.

The work is coordinated through mission control at Johnson Space Center, where engineers track propulsion performance, navigation data, and onboard systems in real time.

A view over the shoulders of NASA astronauts Victor Glover (left) and Reid Wiseman (right), pilot and commander, respectively, inside the Orion spacecraft as they participate in a proximity operations demonstration. This demonstration tests the spacecraft’s ability to manually maneuver relative to another spacecraft, the interim cryogenic propulsion stage, after separation, using its onboard navigation sensors and reaction control thrusters. NASA

Brief communication dropout under review

Shortly after completing the burn, ground teams experienced a temporary loss of communications with the spacecraft. NASA said controllers were unable to receive data from Orion or the crew for a brief period.

The interruption resolved quickly. Astronauts reported that they continued to hear communications from the ground throughout the event, indicating that onboard systems remained functional.

NASA said engineers are reviewing telemetry to determine the cause of the dropout. The agency has not indicated any impact on mission safety or trajectory.

Such communication gaps, while uncommon, are treated as high-priority review items during test missions. Artemis II, as a crewed test flight, is designed to expose and evaluate system behavior under real operating conditions.

NASA press conference and mission leadership

NASA will hold a post-launch press conference at 8 p.m. EDT from the Kennedy Space Center to provide further updates.

Scheduled participants include NASA Administrator Jared Isaacman, Associate Administrator Amit Kshatriya, Lori Glaze, who serves as acting associate administrator for the Exploration Systems Development Mission Directorate, and Norm Knight, director of the Flight Operations Directorate.

The briefing is expected to address the completed maneuver, the communication anomaly, and upcoming mission steps.

Public attention remains fixed on the mission’s progress. “Even a small signal loss gets people nervous, but that’s why they test,” wrote Reddit user SpaceTrackLive in a post that drew more than 900 upvotes, reflecting cautious optimism among spaceflight observers.

Next milestone: apogee raise burn and system checks

The next major step for Artemis II is the apogee raise maneuver. This burn will increase the highest point of Orion’s orbit, complementing the earlier perigee adjustment.

Together, these orbital changes define the spacecraft’s path before it transitions into high Earth orbit operations. NASA said this phase will allow for extended system verification and crew activity in preparation for the mission’s later trajectory toward the Moon.

Engineers view these incremental milestones as essential. Each burn, test, and anomaly review contributes to a broader goal: confirming that Orion can safely carry astronauts through deep space and back.

For now, Artemis II continues to move step by step. One maneuver completed, one anomaly under review, and another burn on the horizon.

Also Read:

Artemis II Mission Launch: NASA Sends Crew on First Moon Flyby in 50 Years

NASA’s Artemis II Rocket Reaches Launch Pad 39B, Final Countdown Begins

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Artemis II Update-3: Apogee Raise burn complete, Crew prepares critical Proximity Test