📄️ Product Specifications
The table below delineates the standard imagery data product specifications. Wyvern's imagery data products are packaged and delivered with all available spectral bands from any given Dragonette satellite. The spatial resolution specification is defined as the inherent ground sample distance (GSD) of the Dragonette satellite hyperspectral imaging sensor at nadir. The spectral resolution specification is defined as the Full Width at Half Maximum (FWHM) measurement parameter. The temporal resolution specification is defined as the average revisit time at the equator latitude for imaging collection opportunities across all operational satellites in the Dragonette constellation. The geolocation accuracy specification is defined as the absolute accuracy to a fixed ground-control point (GCP) measured in terms of deviation from the GCP using the circular error at the 90th percentile (CE90) metric.
📄️ Spectral Bands
The tables below delineate the spectral characteristics of the hyperspectral imaging sensor on each of the Dragonette satellites. Wyvern strategically operates the hyperspectral imaging sensor on each Dragonette satellite to collect HSI data products with band centre wavelengths that are aligned with existing commercial (e.g., PlanetScope) and science mission (e.g., Landsat, Sentinel, etc.) satellite remote sensing data sources.
📄️ Data Processing & Product Generation
To deliver hyperspectral imagery data products in a consistent, scalable, reliable, and timely manner Wyvern has built a cloud-based data processing pipeline that converts raw sensor data and platform ephemeris metadata into usable output imagery data products that are delivered to end-users. The data processing pipeline includes spectral band co-registration at a < 25% subpixel level to ensure the best possible spectral purity in each pixel thereby enabling robust spectral analysis of the HSI data products.
📄️ Processing Levels
Level-1B
📄️ Quality Assurance
Wyvern has built an advanced proprietary image quality assurance (QA) system to confirm that imagery data products align with the documented standard product specifications and the offering's cloud cover policy. If the quality assurance system determines that a new tasking imagery data product does not meet the standard performance specifications or cloud cover policy and there is available imaging capacity the Wyvern constellation tasking system will automatically re-schedule a new imaging collection attempt within the tasking order's time-of-interest (TOI) acquisition date range. This automatic QA standard performance specifications misalignment retasking applies to both Standard Tasking and Premium Tasking offerings where available imaging capacity for re-schedule is offering- dependent. New tasking attempts will continue until an imagery data product is acquired that aligns with standard product specifications or the constellation tasking order's acquisition date range expires. Furthermore, for Premium Tasking orders with automatic cloudy collection retasking if an imagery data product does not align with the cloud cover policy the Wyvern constellation tasking system will automatically re-schedule a new tasking request to attempt another imaging collection within the order's acquisition date range based on available Premium Tasking capacity and upcoming weather forecast (automatic cloudy collection retasking is not available for Standard Tasking which is a single shot offering).
📄️ Product Delivery
Wyvern delivers imagery data products via Amazon Web Services (AWS) Simple Storage Service (S3) bucket storage and all imagery data products are deemed accepted upon delivery. Each individual client organization will have their own dedicated isolated S3 bucket for imagery data product delivery ensuring confidentiality and privacy is maintained via organizational data isolation while following standard cloud cybersecurity protocols. All the separate image data and metadata files for any given imagery data product are packaged into a ZIP bundle package .zip file that represents the delivered product. The ZIP file name matches Wyvern's globally unique identifier (GUID) for the imaging collection attempt that generated the imagery data product. Once imagery data products are delivered to a client's dedicated S3 bucket within Wyvern's AWS cloud infrastructure an email notification is sent with temporary download links that expire after 7 days. However, any given imagery data product delivery can be re-fulfilled upon request to Wyvern.