PRE-LAUNCH | ARTEMIS II

MISSION TRACKER

TRAJECTORY + TIMELINE + MILESTONES

Earth — Moon Trajectory

Orion's 10-day flight path

LOADING TRAJECTORY...

Day-by-Day Timeline

10-day lunar flyby mission

D0
Launch Day
SLS launches from Kennedy Space Center Pad 39B, carrying Orion with 4 astronauts...

SLS launches from Kennedy Space Center Pad 39B, carrying Orion with 4 astronauts. After reaching orbit, ICPS performs the TLI burn to send Orion toward the Moon.

SLS liftoff
SRB separation
Core stage separation
Parking orbit achieved
TLI burn — Orion leaves Earth orbit
D1
Outbound — Leaving Earth
Orion separates from ICPS, deploys solar arrays. Crew performs initial systems c...

Orion separates from ICPS, deploys solar arrays. Crew performs initial systems checks and settles into the spacecraft for the long coast to the Moon.

ICPS separation
Solar array deployment
Star tracker navigation calibration
First crew status report
D2
Outbound — Deep Space
Systems checkout continues. Crew tests Orion's life support, communication syste...

Systems checkout continues. Crew tests Orion's life support, communication systems, and navigation. First images of Earth from deep space.

Life support system validation
Deep space communication checks
Crew exercise protocol
Earth photography session
D3
Outbound — Midcourse
Possible midcourse correction burn. Crew continues adapting to the deep space en...

Possible midcourse correction burn. Crew continues adapting to the deep space environment. Distance from Earth: ~200,000 km.

Midcourse correction burn (if needed)
Radiation environment monitoring
Orion systems health check
D4
Outbound — Approaching the Moon
Orion enters the lunar sphere of influence. The Moon's gravity begins to dominat...

Orion enters the lunar sphere of influence. The Moon's gravity begins to dominate. Final preparations for lunar flyby.

Lunar sphere of influence entry
Navigation state update
Flyby trajectory confirmation
Crew rest period
D5
Lunar Approach
Orion approaches the Moon, passing behind the far side. Brief loss of signal as ...

Orion approaches the Moon, passing behind the far side. Brief loss of signal as the spacecraft is occulted by the Moon. The crew sees the lunar far side up close.

Closest approach to Moon (~7,600 km)
Far side observation
Loss of signal (behind Moon)
Signal reacquisition
D6
Farthest Point — Beyond the Moon
Orion reaches its farthest point from Earth: ~392,000 km, surpassing 7,600 km be...

Orion reaches its farthest point from Earth: ~392,000 km, surpassing 7,600 km beyond the Moon. The crew sets a new distance record, passing Apollo 13's 400,171 km mark from Earth.

Maximum distance from Earth reached
Apollo 13 record surpassed (400,171 km)
Deep space photography
Return trajectory burn preparation
D7
Return — Heading Home
Return trajectory established. Orion begins the long coast back to Earth. Crew c...

Return trajectory established. Orion begins the long coast back to Earth. Crew conducts additional systems tests for the return leg.

Return trajectory burn
Systems check for re-entry preparation
Crew debriefing and data collection
D8
Return — Midway Home
Continued return coast. Crew prepares for re-entry procedures. Final deep space ...

Continued return coast. Crew prepares for re-entry procedures. Final deep space activities before approaching Earth.

Midcourse correction (if needed)
Re-entry procedure review
Stowage of loose equipment
Final deep space observations
D9
Return — Final Approach
Orion approaches Earth. Service module separation. Heat shield orientation. The ...

Orion approaches Earth. Service module separation. Heat shield orientation. The crew prepares for the most critical phase: re-entry at 40,000 km/h.

Service module jettison
Crew module orientation for re-entry
Communication blackout during re-entry
Parachute deployment sequence
D10
Splashdown
Orion splashes down in the Pacific Ocean. USS Portland recovery ship retrieves t...

Orion splashes down in the Pacific Ocean. USS Portland recovery ship retrieves the crew module. The Artemis II crew returns to Earth as heroes who opened the door back to the Moon.

Re-entry and descent
Main parachute deployment
Splashdown in Pacific Ocean
Crew recovery by USS Portland
First humans beyond LEO in 53+ years — safely home

Mission Milestones

0 of 18 achieved

Liftoff
SRB separation
Earth orbit achieved
TLI burn complete — heading to the Moon
Passed ISS altitude
408 km
Passed GPS satellite altitude
20,200 km
Passed geostationary orbit
35,786 km
Halfway to the Moon
192,200 km
Entered lunar sphere of influence
Lunar flyby — closest approach
Passed Apollo 13 record — NEW RECORD
400,171 km
Farthest point reached
~392,000 km from Earth
Return trajectory established
Halfway home
Re-entry interface
120 km altitude
Parachute deployment
Splashdown
Crew recovery