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No more compromises

Lidar Systems

Galaxy is the next generation of airborne solutions, packing more power and accuracy into a tiny footprint than any other sensor. Designed for everything from wide-area mapping to corridor surveys, Galaxy is truly a universal sensor that rivals larger systems with its ultra-dense data and industry-leading measurement precision and accuracy.

Galaxy’s new PulseTRAK™ and SwathTRAK technologies (patents pending) make surveying simpler than ever before by providing unique innovative feature sets that maximize productivity, increase information content and reduce overhead costs.

Whether installed in a tactical UAV, integrated in a helicopter pod for powerline surveying, or gyro-stabilized with an orthometric camera for wide-area mapping, Galaxy’s performance and capability is out of this world.

A breakthrough in
collection efficiency

Features & Benefits

  • PulseTRAK technology replaces conventional multi-pulse technologies for high PRFs at high altitude
  • SwathTRAK technology moves collection efficiency to a whole new level by dynamically modifying the scan field of view during collection to maintain fixed swath widths and even point distribution, even in variable terrain
  • 1 MHz effective PRF provides on-the-ground point density and efficiency formerly reserved for dual-beam sensors
  • Industry-leading data precision and accuracy for the highest-quality datasets possible
  • Up to 8 returns per pulse provide increased vertical resolution of complex targets without the need for full waveform recording and processing (waveform recorder optionally available)
  • Fully programmable scanner enables dramatic point density increases at lesser FOVs
  • Industry-leading discrete timing electronics for pulse pair separation (i.e. minimum target separation distance) of less than 0.7 m (or less with optional waveform recorder)
  • Wide dynamic range enables exceptional small-target detection capability and capture of even the smallest details
  • In-air lidar point cloud display for maximum collection confidence
  • Real-time XYZI point clouds in LAS format enable immediate data deliverables
  • Low power requirements and compact form factor provide maximum platform flexibility
  • Tight integration with Teledyne Optech’s modular line of digital cameras (RGB, NIR, thermal, and multispectral) under a single flight management system provides excellent application flexibility and scalable data deliverables
  • Production-focused workflow software with automated calibration and boresight capability using rigorous least squares methods and robust bundle block adjustment for both lidar and camera within a single workflow, enabling truly coincident datasets and quantified accuracies


Model Description
Galaxy PRIME
Part number: Galaxy PRIME

Maximum productivity for wide-area, mountain, urban and corridor survey applications.

Sensor Performance
Performance envelope

150-6000 m AGL, nominal 1, 2, 3, 4

Absolute horizontal accuracy

1/10,000 × altitude; 1 σ  2, 3

Absolute elevation accuracy

< 0.03-0.25 m RMSE from 150-6000 m AGL  2, 3

Laser Configuration
Topographic laser

1064-nm near-infrared

Laser classification

Class IV (US FDA 21 CFR 1040.10 and 1040.11; IEC/EN 60825-1)

Pulse repetition frequency (effective)

Programmable, 50-1000 kHz

Beam divergence

0.25 mrad (1/e)

Laser range precision

< 0.008 m, 1 σ 5

Minimum target separation distance

< 0.7 m (discrete)

Range capture

Up to 8 range measurements, including last

Intensity capture

Up to 8 intensity measurements, including last (12-bit)

Sensor Configuration
Position and orientation system

POS AV™ AP60 (OEM); 220-channel dual frequency GNSS receiver; GNSS airborne antenna with Iridium filters; high-accuracy AIMU (Type 57); non-ITAR

Scan angle (FOV)


Swath width

10-115% of altitude AGL

Scan frequency

0-120 Hz advertised (0-240 scan lines/sec)

Scan product

2000 maximum

Flight management system

Optech FMS (Airborne Mission Manager and Nav) with operator console


Dynamic FOV for fixed-width data swaths in variable terrain


Multipulse tracking algorithm with sero density loss across PIA transition zones

Roll compensation

±5° minimum

Data storage

Removable SSD (primary); internal SSD (spare)

Power requirements

28 V; 400 W

Dimensions and weight

Sensor: 0.34 × 0.34 × 0.25 m, 27 kg — PDU: 0.42 × 0.33 × 0.10 m, 6.5 kg

Operating temperature

0 to +35°C

Optional Peripherals
External data storage

Ruggedized, removable 2.5” SSD

Image capture

Compatible with all Optech CS-Series and most 3rd party digital metric cameras (integration kits available)

Full waveform capture

12-bit Optech IWR-3 Intelligent Waveform Recorder with removable SSD


SOMAG GSM4000 integration kit

Multi-sensor mounts and pods

Machined aluminum sensor mounts (aircraft and/or helicopter)
Carbon-fiber sensor mounts supporting nadir and fore/aft oblique cameras
Heli-pod mount options for Bell 206/407 (FAA-approved)

  1. Target reflectivity ≥20%; 99% detection probability
  2. Dependent on selected operational parameters; assumes nominal FOV of up to 40° in standard atmospheric conditions (i.e. 23-km visibility) and use of Optech LMS Professional software suite
  3. Angle of incidence ≤20°
  4. Target size ≥ laser footprint
  5. Under Teledyne Optech test conditions, 1 sigma



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