2075C

2075C is a modular satellite bus developed by Vecna Space Systems, introduced in 2075 as the third generation of the 2075 family. The designation C stands for configurable, reflecting a shift toward standardized, plug‑and‑play payload interfaces and adaptable attitude control options for small satellites.

Design and capabilities: The 2075C employs a modular bus architecture that separates power, data, and avionics into swappable units. It includes a radiation-hardened on‑board computer, fault‑tolerant software, and an attitude determination and control system using reaction wheels and magnetorquers. The bus supports multiple payload interfaces (I2C, CAN, SpaceWire) and can accommodate a range of solar‑array configurations, enabling missions with modest mass and power budgets.

Performance and specifications: Typical 2075C platforms have a dry mass of 40 to 60 kilograms and can carry payloads up to about 60 kilograms. Power budgets range from 150 to 500 watts, with an on‑orbit lifetime of five to seven years. Communications options include S‑ and X‑band downlinks, and deorbit capability is provided to meet space‑environment guidelines.

Scope and impact: The 2075C has been adopted by commercial operators and research agencies for Earth observation, communications relay, and technology demonstration missions. Its standardized interfaces have reduced integration times and production costs for small satellite constellations, while remaining compatible with earlier 2075 variants.

Variants and related models: The 2075C family includes variants such as 2075C‑XL for larger secondary payloads and 2075C‑DC for dense constellations. It coexists with the 2075B and 2075D platforms, forming a modular family intended to cover a range of mission profiles.