What level of calibration degradation can be expected over time? What is the anticipated level of calibration stability after a year of deployment?

The calibration activity is carried out every 1/2 months. All the Pixxel satellites will be inter-calibrated. The effect of both the sun angle and look angle on the data from different satellites, but from the same location, will be addressed separately through the BRDF (Bidirectional Reflectance Distribution Function) algorithm.