Overview

The data in this portal is the data acquired by the research satellites in the HYPSO project at NTNU SmallSat Lab. There has not been performed any filtering of the data so the data products reflect the issues, anomalies and developments that have been done after launch. For transparency we want to mention a few key points to be aware of:

1. Some of the captures have rainbow patterns. These patterns are decompression artifact that arise when there is missing data in the hyperspectral cube. What it means is that all the data up until the rainbow patterns are fully viable, but nothing after it. The older cubes with these issues also lack metadata, but that has been fixed for later cubes such that metadata should always be present.
2. Some of the captures are entirely black with some stripes. These stripes are noise. Such captures arise sporadically due to pointing anomalies with the satellite. Essentially, it missed earth and imaged space. There also exist some captures taken at night with a postfix “night” where the exposure time was just not high enough to see anything. Note: There is also at least one capture named “night” that was acquired at day instead. Mishaps do happen.
3. Captures do not have a very strict naming policy, meaning that not all of them are named after a specific city etc. Some of them are instead named after what they were intending to image. E.g., “penguins” or “eurasianplate”, “volcano”, or “northAtlanticDust”. Some are also named after new image captures that were tested, e.g., “fullframe”.
4. There also exist some moon captures. Their coordinates does not make sense since the moon is not added in the map, but you can find them by filtering for “moon”.
5. Captures that are indexed with numbers are simply a way of setting up multiple coordinates within one given area. It is an artifact of the way some of the mission operations software was developed.