MAPP

Lunar Outpost.

The problem

A small polar rover has to survive transit and a landing it does not control, deploy from its lander, and then operate on a surface that is cold, dusty and poorly lit. Electronics must stay inside temperature limits when the sun is near the horizon. NASA’s engineering review sets the lunar design envelope at -233 to +125 degrees C and states that no existing qualification standard covers it [34]. The rover must drive on regolith that no rover has traversed at the south pole, with orbital maps as the only terrain knowledge; the VIPER landing-site work near Mons Mouton is built entirely from orbital data, with no surface measurement of the ground [40]. Dust is the standing mechanical constraint: in ambient-air tests, four lunar and Martian simulants gave friction coefficients of 0.2 to 0.4 against a lip seal and produced measurable abrasive wear [35]. Finally, data return is usually the lander’s link, which at this scale is a few megabits for the whole mission [10].

MAPP, the Mobile Autonomous Prospecting Platform, is Lunar Outpost’s answer, a small four-wheeled rover sold as a mobility service in which customers buy payload bays, power and data on a flight [9].

What has flown

MAPP flew once, as Lunar Voyage 1 on the Intuitive Machines IM-2 Nova-C lander, launched 26 February 2025 [13]. Nova-C landed on 6 March 2025 about 250 m from its intended site, on its side inside a crater at Mons Mouton [13]. The MAPP garage was wedged upside down beneath the lander, which prevented deployment [10]. Intuitive Machines did not expect the lander to recharge, given sun direction, solar panel orientation and crater temperatures, and declared the mission concluded on 7 March 2025 [13]. The cause of the landing attitude is not given in the trade-press account [13].

The manufacturer reports that during the mission it received 57,574 telemetry data points, downlinked multiple images and sent 268 commands, inside a total lander-provided downlink allocation of 6 Mb [10]. It states that returned MAPP data shows the rover survived the landing and would have driven. The Talon hold-down and deployment system, patent pending, restrained the rover through launch and landing impact [10]. The Fault Tolerant Flight Computer performed vehicle management through a Van Allen belt transit and operations in shadow. The Autonomous Thermal Control System is reported to have held rover and payload temperatures inside design ranges, per the same account. Operations ran from Lunar Outpost’s own mission control on the Stargate software, reported at 99.998 percent uptime [10], and the stereo navigation camera imaging was compressed onboard to fit the narrow allocation. Every TRL 9 designation in that account is self-assigned; no temperature, power, dose or subsystem data are published [10].

The Nokia Bell Labs 4G/LTE Lunar Surface Communications System flew on the same lander: a Network in a Box on Nova-C with dual-redundant base transceiver station and evolved packet core, and a custom LTE device module and antennas on MAPP as the mobile user [1]. The planned demonstration was a rover link at 200 to 300 m and up to 2 km from the lander [1]. The paper predates the flight, and no measured link performance is cited here. The Micro-Nova hopper on the lander was named S. P. Hopper for this flight and carried a second device module [4].

Other IM-2 payloads show the cost of the tipped attitude. PRIME-1’s TRIDENT drill, designed to reach about 0.91 m, could not reach the ground, and MSolo received no sample [6], [13], [14].

What is being tried now

Cellular surface networking. Flown once, on this mission, without a published result. NASA’s 3GPP Cellular Working Group recommended baselining 3GPP for planetary surface communications, and an Artemis III demonstration objective targets 45 minutes of 720p video per one-hour window at 2 km from an Axiom suit [1]. This is the only family here with a flight attempt; the Artemis III figures are targets.

MAPP derivatives and customer rovers. A MAPP-derived chassis carries the Lunar Vertex payload for Reiner Gamma, a vector magnetometer array and a multispectral microscope [2], [3]. It is a ground-tested flight article awaiting a landing. Under NASA’s Lunar Surface Technology Research program, Lunar Outpost, the Colorado School of Mines, Michigan Technological University and Bechtel are developing ASPECT, an autonomous landing-pad construction system that draws on MAPP mobility, dust and thermal work [5]. It is in development. The larger Outpost Digger System ran a 15-day durability demonstration for the Break the Ice Lunar Challenge [8]; the Colorado School of Mines mare-simulant test bed has been used to test MAPP hardware among others [7]. NASA’s IPEx excavator has a documented TRL 5 design and qualification campaign [29], and its autonomy was tested in a 39.6 by 21.3 m light-tight tent with stadium lights standing in for the polar sun, including a five-day continuous mission demonstration [32]. Both are ground results at 1 g in air.

Other small and mid-size lunar rovers. JAXA’s LEV-1 flew on SLIM and made six hops confirmed by sensed gravity change, the first hopping locomotion on the Moon; no hop distance or height was published [16], and the SLIM landing results are reviewed in [15]. Colmena-1 carried five 12 cm micro-rovers on Peregrine Mission One, but the lander never reached the surface, so no mobility objective was exercised [33]. Canada’s lunar rover has passed preliminary design review, with no mobility figures published [25]. JPL’s CADRE delivery was a management retrospective on COTS-based rovers for IM-3 [21], and its CRESCENT planner uses a 5.12 m global horizon at 1 Hz and a 0.64 m local horizon at 5 Hz, validated in simulation and on an Earth Mars Yard [22].

Long-range autonomy. The Endurance concept would traverse about 2000 km across South Pole-Aitken basin and collect up to 100 kg of samples at 12 sites [23]. Its MEXEC executive coordinates mobility and telecom [24]. In a Mars Yard run with simulated power and thermal signals, a rover drove 4.192 km in 392 minutes with four interventions; the simulation tables were accelerated by a factor of 10 [41]. A one-tonne rover ran Lidar Teach and Repeat cargo transport at the CSA Analogue Terrain over two weeks, on sand, snow and ice rather than regolith [38]. All of this is ground or proposal level.

Navigation without GPS. ShadowNav localizes in total darkness from a stereo camera and floodlight by matching crater-rim range discontinuities to an orbital map, tested at Earth analog craters; it gives 2D position only [18]. Illumination-invariant matching for polar terrain-relative navigation has been evaluated on rendered imagery, where sun elevations of a few degrees change the appearance of terrain hour to hour [19], [20]. These are ground and simulation results; none is stated to be part of MAPP’s navigation software.

Planning for shadowed terrain. Chance-constrained mission-level planning for a solar-powered rover in permanently shadowed regions has been demonstrated only in Monte Carlo simulation on synthetic orbital maps [17].

Resource prospecting payloads. The TRIDENT drill built for PRIME-1 and VIPER has never drilled lunar regolith: the PRIME-1 activation exercised mechanisms horizontally with the drill buried in landing ejecta [14]. By contrast, LISTER reached depth on Blue Ghost Mission One in March 2025 and returned a preliminary heat flow value [36], and PlanetVac collected 13 g of regolith on the same lander [37]. VIPER’s mobility dust protection used a 42-layer outer barrier with graded seals, tested at ambient pressure only [27]; its system thermal vacuum test setup is described in [28], and its rationale as an Artemis precursor in [26].

Mobility prediction on the ground. Dedicated work asks whether 1 g experiments predict reduced-gravity mobility, using parabolic flight single-wheel data [31]. Single-wheel tests of a flight-model grouser wheel compared Toyoura sand with FJS-1 lunar simulant on Earth at reduced vertical load, which is not reduced gravity [39]. NASA has issued consolidated best practices for testing rover mobility systems and tires [30]. No lunar-gravity mobility measurement exists for MAPP.

The numbers

Parameter	Value	Source
Vehicle mass, flight article	10 kg	[11]
Top speed	10 cm/s	[11]
Locomotion	four driven wheels	[11]
Lander	Intuitive Machines Nova-C, IM-2	[1]
Launch	26 February 2025	[13]
Landing	6 March 2025, about 10:30 MT	[10]
Landing site	Mons Mouton, 250 m from target	[13]
Lunar transit operations	132.2 hours	[10]
Lunar orbit operations	77.1 hours	[10]
Surface operations in shadow	2.7 hours	[10]
Downlink allocation, transit and surface	6 Mb	[10]
Telemetry points / commands	57,574 / 268	[10]
Planned lander-rover link ranges	200 to 300 m; up to 2 km	[1]
Outcome	lander on its side, rover never deployed	[13]

Payload	Provider	Function	Source
4G/LTE device module and antennas	Nokia Bell Labs	mobile node of the lunar cellular network	[1]
Azure Kinect depth camera	NASA Ames and MIT	depth imaging of the surface	[10]
AstroAnt	MIT Media Lab	magnetic-wheeled robot with a thermopile monitoring radiator temperature	[12]
Regolith collection mechanism	Lunar Outpost	sample acquisition under a NASA space resources contract	[10]
Neutron spectrometer	not stated	hydrogen signature prospecting	[10]

Subsystems reported by the manufacturer: two computers (a Fault Tolerant Flight Computer with FPGA, processor, memory and motor controllers, and a separate navigation and payload computer), stereo navigation cameras with onboard compression, a dust mitigation lens cover, and an AstroAnt garage [10]. The rover has no direct-to-Earth link in this configuration and communicates through the lander [1].

What is not established

No mobility, navigation or autonomy function of MAPP was exercised on the lunar surface, because the rover never left its garage [10], [13]. The statement that it would have driven, and every TRL 9 designation, rest on the manufacturer’s own telemetry from a few hours in a wedged, shadowed position under a tipped lander [10]. The product page carries no numbers [9].

Mass and top speed are quoted by a payload customer without a source, and the several-kilometer traverse range is an intention [11]. No full paper gives bus mass budget, payload capacity, array power, battery capacity, terramechanics, slope limit or design drive range. The Nokia link ranges are plan figures from a paper written before the outcome was known [1]. No night or thermal-cycling result exists for MAPP. The thermal performance claimed for MAPP was not tested against them on the surface.