Table 2. Operations which require mode transition. The modes in this table represents AOCS submodes

Operation	Mode transition
Bus IAC	Launch → TSH → SP
Orbit maneuver thruster (OMT) burn	SP → LAM → ADV → ODV → SP
Attitude control thruster (ACT) burn	SP/TP → LAM → ADV → ODV → SP
Commissioning	SP → TP
Momentum management	SP/TP → WOL → SP/TP
Disconnect non-essential load (DNEL)	SP/TP → SP → TSH
Fail-over and recovery	SP/TP/LAM/ODV/ADV/WOL → TSH → SP

AOCS, attitude and orbit control subsystem; IAC, initial activation and checkout; TSH, thruster based safe hold; SP, sun pointing; LAM, large angle maneuver; ADV, attitude control thruster-based delta-V; ODV, OMT based delta-V; TP, target pointing; WOL, wheel off-loading.