Dragonette Constellation
Wyvern's operational Dragonette constellation consists of 6U cubesat satellites that were launched into low Earth orbit (LEO). All satellites in the Dragonette constellation operate in sun-synchronous orbit (SSO) and provide hyperspectral imaging in the visible and near-infrared (VNIR) wavelengths. Each Dragonette satellite has an orbital period of approximately 15 orbits per day with approximately 24° of longitude ground-track separation between orbital passes at the equator. The imageable latitude range for the Dragonette satellites in SSO is within the range of +82°N to -82°S but at extreme high latitudes imaging is only available for a limited number of days near the summer solstice.
The orbital parameters for the Dragonette satellites for epoch date 2025-06-19 UTCG are in the table below.
| Satellite Name | Launch Date | Altitude (km) | Orbit Period (minutes) | Orbit Inclination (degrees) | Crossing Node (time) | Nadir Repeat (days) |
|---|---|---|---|---|---|---|
| Dragonette-1 | 2023-04-15 | 534.9 | 95.2 | 97.3° | 09:50 LTAN | 15.13 |
| Dragonette-2 | 2023-06-12 | 515.2 | 94.8 | 97.8° | 14:09 LTDN | 15.19 |
| Dragonette-3 | 2023-11-11 | 526.3 | 95.0 | 97.4° | 10:01 LTDN | 15.16 |
Orbital parameters for operational satellites in the Dragonette constellation
Wyvern's current Dragonette constellation has an average revisit time of 2.1 days at the equator with an at-nadir repeat cycle of approximately 15 days per individual satellite. While the satellites in the Dragonette constellation can collect imagery over open water their imaging operations are optimized and most well-suited for acquisition of HSI data over land.
Dragonette satellites are operated under spaceborne data-as-a-service (DaaS) agreements in partnership with AAC Clyde Space and Loft Orbital with additional uplink & downlink communication services provided by Kongsberg Satellite Services (KSAT). Furthermore, the order management workflow, data processing pipeline, imagery product generation and online HSI data product delivery are all hosted within Wyvern's secure AWS cloud infrastructure. The full order-to-delivery information management flow and data transmission pixel path for processing of tasking requests and collected raw data acquired by Dragonette satellites is illustrated in the figure below. Based on Wyvern's partnerships for space satellite communications and ground segment operations the HSI data collected by our Dragonette satellites is downlinked to various KSAT ground stations at strategic locations around the globe such as Svalbard and Troll. Wyvern has implemented rigorous operational protocols for Security & Confidentiality which includes strict privacy practices where no identifiable information is shared with any of our strategic space & ground segment mission partners.