| Time | Event
|
| LEO Insertion
|
| 00:00:00
| Launch vehicle lift off
|
| 00:00:??
| First stage separation
|
| 00:00:??
| Second stage separation
|
| Parking orbit
|
| 00:??:??
| Complete systems check.
|
| Check of all communications channels, etc. Decision is made on the basis of this check whether to continue with flight or to abort (initiate reentry using PM and then separate CM from rest of stack).
|
| 00:??:??
| Orbit determination
|
| Estimate as accurately as possible the parameters of the orbit that the spacecraft has been inserted into. This could in principle be done entirely from onboard the spacecraft (using GPS, IMU, horizon sensors, etc.), but ground based observations will improve accuracy and should be used too.
|
| 00:??:??
| Trajectory planning
|
| Based on determined orbit, compute the best possible time, attitude and burn duration for TLI.
|
| 00:??:??
| pre-TLI Attitude adjustment
|
| Use of RCS to ensure spacecraft has correct attitude for TLI.
|
| 00:??:??
| Trans Lunar Injection
|
| Burn PM engines for calculated time.
|
| Lunar Transfer
|
| 00:??:??
| First PM engine test burn
|
| Burn PM engines posigrade for brief time.
|
| 00:??:??
| Second PM engine test burn
|
| Burn PM engines retrograde for brief time.
|
| 00:??:??
| Third PM engine test burn
|
| Burn PM engines retrograde for brief time.
|
| 00:??:??
| pre-LOI Attitude adjustment
|
| Use of RCS to ensure spacecraft has correct attitude for LOI.
|
| 00:??:??
| Lunar Orbit Insertion
|
| Burn PM engines for calculated time.
|
| Lunar Orbit
|
| 00:??:??
| Orbit determination
|
| Estimate as accurately as possible the parameters of the lunar orbit that the spacecraft has been inserted into. This will be more difficult than the initial Earth orbit determination: no GPS, and probably no useful ground measurements. Horizon sensors may still work. IMU based estimates, radar/laser altimeters and visual observation will probably be key.
|
| 00:??:??
| Extravehicular transfer to LL
|
| 00:??:??
| Separation of LL from CM
|
| 00:??:??
| Descent Orbit Insertion
|
| Burn LL engine for calculated time.
|
| Lunar Descent
|
| 00:??:??
| Touchdown
|
| Lunar EVA
|
| 00:??:??
| Flag planting
|
| Plant Blue Marble flag.
|
| 00:??:??
| Return to LL
|
| Lunar Ascent
|
| Lunar Orbit
|
| 00:??:??
| Extravehicular transfer to CM
|
| 00:??:??
| CM repressurization.
|
| 00:??:??
| LL orbit lowering.
|
| The LL must be remotely controlled from the CM such that it moves a safe distance away from the CM and then performs a short orbit-lowering burn so that it is out of the way for TEI.
|
| 00:??:??
| pre-TEI Attitude adjustment
|
| Use of RCS to ensure spacecraft has correct attitude for TEI.
|
| 00:??:??
| Trans Earth Injection
|
| Burn PM engines for calculated time.
|
| Earth Transfer
|
| Reentry
|
| 00:??:??
| CM separation
|
