HARP2 is a wide field-of-view pushbroom polarimeter with four spectral channels blue (440 nm), green (550 nm), red (665 nm), and near-infrared/NIR (865 nm) measuring the linear Stokes Parameters
Using a “division of amplitude” technique, HARP2 simultaneously captures images in 3 states of polarization. Its image array is divided into spectral “view sectors” which designate up to 60 view angles HARP2 uses to view the Earth.
![HARP2-CCD-Schematic](https://esi.umbc.edu/wp-content/uploads/sites/544/2024/04/HARP2_Detector_Schematic-1024x762.png)
See HARP2 during the PACE launch by NASA!
![HARP2-Launch](https://esi.umbc.edu/wp-content/uploads/sites/544/2024/04/HARP2_PaceLaunch_v2-868x1024.png)
HARP2 Global Map (Nadir View)
HARP2 Global Map (Backward View)
![Cloudbow-HAPR2_SouthAmerica](https://esi.umbc.edu/wp-content/uploads/sites/544/2024/04/HARP2-South-America-Cloudbow.png)