InSIGHT

 2018-042A

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Discovery-class Mars lander based on Phoenix.

Interior Exploration using Seismic Investigations, Geodesy and Heat Transport. The mission will study crustal thickness, layering, core density, size and state, heat flow and seismic activity. Launch with MarCO-1,2

Launch from VAFB on Type 1 trajectory. Landing on Elysium Planitia. 4.5N 135.9E. 130 x 27 km ellipse.

Launch mass 694 kg. Entry mass 608 kg. For cruise stage mass of 79 kg implies 7 kg of TCM prop used in cruise.

Insight
Date	Time	Event	Orbit
2018 May 5	1105:01	Launch by Atlas V 401 AV-078	VAFB SLC3E
		T+0:01 Launch
		T+4:04 BECO
		T+4:10 Atlas sep
		T+4:20 Centaur MES1
		T+4:28 Fairing sep
	1118	T+13:16 MECO-1	185 x 185 x 64.0
	1223	T+1:18:56 MES-2
	1229	T+1:24:20 MECO-2
	1238	T+1:33:20 Insight sep over Alaska	115 x -110126 x 63.54 C3=8.20
		First avoidance mvr
	1238	T+1:33:53 MarCO-A sep
		180 deg roll
	1239	T+1:34:41 MarCO-B sep
		Second avoidance mvr
	2153	Pass EL1:4
2018 May 10	2355?	Depart Hill sphere
2018 May 22		TCM1 40s 3.8m/s	1.008 x 1.441 AU x 2.26
2018 Jul 18		TCM2
2018 Oct 2		TCM3
2018 Nov 1		TCM4
2018 Nov 8		TCM5
2018 Nov 22	1700	Enter Mars sphere
2018 Nov 26		Arrival at Mars	4 x -16487 x 13.5
	2000?	E-7:00 Cruise stage sep
		E-6:30 Begin turn to entry attitude
		E-5:00 Complete turn to entry attitude
		E+0:00 Entry 5.9 km/s, 608 kg, 128 km
		E+3:43 Parachute deploy 12 km 415 m/s
		E+3:58 Heat shield sep, 10.3 km 132 m/s
		E+4:08 Leg deploy
		E+5:00 Radar on, 5.5km
		E+6:10? Radar Acq, 2.3 km
		E+6:28? Backshell sep 1.1 km 61 m/s
		E+6:28? Lander thrusters on
		E+6:30? Gravity turn start
		E+6:44? Constant Vel thrust 51m, 2.4 m/s
		E+7:10? Landing
2020 Oct		End of primary mission

Payload:

• HP3 Heat Flow and Physical Properties Package (DLR/) HP3 Support Structure Assembly, emplaced with robot arm, with 0.40m long 0.027m dia Mole on tether. Drill 'mole' to dig 3 to 5m deep. Deployable HP3 mass is 2.3 kg (2012 value). 0.4m size without mole?

• RISE Rotation and Interior Structure Experiment (comms) (JPL/). Uses radio signal for geodesy

• SEIS Seismic Expt for Interior Structure, seismometer (CNES/IPGP/). Placed on surface under WTS. SEIS mass is 8.2 kg, WTS mass is 9.5 kg.

• SEIS Wind and Thermal Shield, 0.69m dia 0.30m high (JPL/)

• IDS Instrument Deployment System arm, 2.4m long

• IDC - IDS Arm camera

• ICC - Instrument Context Camera, Wide angle camera

• APSS Auxiliary Payload Sensor Suite (JPL/)

  • Pressure sensor (Tavis Corp: Mariposa, California)

  • IFG Insight Fluxgate (UCLA/)

  • TWINS - Temp and Wind for Insight (CAB-Madrid/)

• LaRRI Laser Retroreflector for InSight (ASI/)

• Lander thrusters (12) 302N each

• TCM thrusters (4) 22N each (on lander) through cutout in backshell