Motivation MERS Mission-critical sequences Launch deployer Planetary fly-by Orbital insertion Entry, descent landing Images courtesy of nasa (Courtesy of Mitch Ingham. Used with permission
Mission-critical sequences: Motivation images courtesy of NASA • Launch & deployment • Planetary fly-by • Orbital insertion • Entry, descent & landing (Courtesy of Mitch Ingham. Used with permission.)
Mars Entry Example MERS engine to standby planetary approach switch to inertial nay rotate to entry-orient hold attitude separate 33.lander (Courtesy of Mitch Ingham. Used with permission
Mars Entry Example engine to standby planetary approach switch to inertial nav rotate to entry-orient & hold attitude separate lander (Courtesy of Mitch Ingham. Used with permission.)
Mars Entry Example MERS engine to standby lanetary approach switch to inertial nay rotate to entry-orient hold attitude Descent engine to“ standby” separate ander (Courtesy of Mitch Ingham. Used with permission
Mars Entry Example engine to standby planetary approach switch to Descent engine to “standby”: off heating 30-60 sec standby separate lander inertial nav rotate to entry-orient & hold attitude (Courtesy of Mitch Ingham. Used with permission.)
Mars Entry Example MERS engine to standby planetary approach switch to inertial rotate to entry-orient hold attitude Spacecraft approach: separate ander 270 mins delay relative position wrt Mars not bservable based on ground computations of cruise trajectory (Courtesy of Mitch Ingham. Used with permission
Mars Entry Example engine to standby Spacecraft approach: • • observable • of cruise trajectory planetary approach separate lander switch to inertial nav rotate to entry-orient & hold attitude 270 mins delay relative position wrt Mars not based on ground computations (Courtesy of Mitch Ingham. Used with permission.)
Mars Entry Example MERS engine to standby planetary appr witch to inertial nay rotate to entry-orient hold attitude Switch navigation mode separate ander (Courtesy of Mitch Ingham. Used with permission
Mars Entry Example engine to standby planetary approach switch to separate lander inertial nav rotate to entry-orient & hold attitude Switch navigation mode: “Earth-relative” = Star Tracker + IMU Switch navigation mode: “Inertial” = IMU only (Courtesy of Mitch Ingham. Used with permission.)