Precision Attitude Sensing

Coarse Sun Sensors for commercial small satellites

Long Arc Space Systems develops compact, low-power sun sensors for the CubeSat and smallsat market. Engineered for mission reliability, priced for commercial programmes.

CSS-1 — Key Parameters

Envelope ≤ 20 × 22 × 5 mm
Mass TBD
Supply voltage 2.7 – 5.5 V
Power (avg / peak) ≤ 15 mW / ≤ 30 mW
Interface I²C 100 / 400 kHz
Accuracy class ± 0.5°
Connector JST-SH 4-pin (pigtail supplied)
Status In development

Built for the realities of commercial smallsat programmes

Long Arc Space Systems is a New Zealand space hardware company developing the CSS-1 Coarse Sun Sensor — a compact, flight-ready attitude sensing component for CubeSat and smallsat missions.

The CSS-1 is designed to compete directly with established components in the ±0.5° accuracy class, offering multiple mechanical variants to match common spacecraft interface footprints. Our focus is on delivering traceable qualification data, responsive support, and commercially viable pricing for mission teams at every scale.

Currently accepting enquiries. Flight heritage campaign in progress. Datasheet and ICD available on request.

Interested in flying our sensor?

We're actively engaging with mission teams for payload integration opportunities. Get in touch to discuss your mission requirements, request documentation, or enquire about pricing and availability.

General enquiries hello@longarcsystems.com
Location Auckland, New Zealand
Documentation Datasheet & ICD available on request