Helios VII
M-040 · LEO SUN-SYNC
Thermal Subsystem Lead
2025.03.02
ESA / DLR
Active radiator delivered −12% mass
vs. baseline. Telemetry green at L+30.
vs. baseline. Telemetry green at L+30.
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A space-systems engineering consultancy delivering subsystems that survive launch, vacuum, and reentry — and the reviews in between.
Heat-pipe networks, deployable radiators, and MLI stacks engineered against the worst-case hot and cold cases of every orbit we have flown. Margin analysis traces to ECSS-E-ST-31C.
Our thermal models are correlated to flight telemetry within ±2°C on twenty-three missions. We deliver as IGES, NX, and Thermal Desktop with full uncertainty budgets.
Real-time, partitioned flight software for GNC, ADCS, and payload management. Built on cFE/cFS heritage with our own validated drivers for LEON3, RAD750, and Vorago Cortex platforms.
Every commit runs against a 4,800-case automated FSW test bench. We deliver to DO-178C analog rigour and have never inserted a defect found post-launch.
TID, SEE, and displacement-damage analyses for LEO, MEO, GEO, and beyond. We design shielding, derate parts, and select rad-hard, rad-tolerant, or COTS-with-mitigation stacks.
In-house TMR voting frameworks and EDAC schemes for SRAM-based FPGAs. Heritage on TID budgets from 50 krad LEO sensors to 300 krad outer-belt transponders.
Mission operations centres staffed and procedurised from LEOP through end-of-life. We write the FOPs, train the consoles, and run the shifts when you need us to.
Tooling stack: OpenC3 COSMOS, Yamcs, and bespoke flight dynamics services. 24/7 anomaly response with median time-to-recovery under 18 minutes across 200+ events.
A sun-synchronous earth-observation satellite for ESA / DLR. Apogee Dynamics led thermal subsystem definition from PDR through commissioning, delivering a four-panel deployable radiator architecture that reduced overall thermal hardware mass by 12 percent against the baseline study.
Critical correlation between the as-built thermal model and on-orbit telemetry was achieved within ±1.8°C across all twelve thermal zones at L+30 days, exceeding the contractual ±5°C requirement.