13.3.1 — Public Health Systems — maturity: live

Vaccination Campaign Logistics

Using satellite connectivity, positioning and Earth observation to plan, coordinate and monitor mass vaccination campaigns across remote and underserved terrain.

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Running a vaccination campaign at national scale is a logistics problem disguised as a health problem. Supply chains stretch across poor roads, seasonal flood plains and contested areas; field teams lose connectivity the moment they leave the district capital; and central planners are making decisions on week-old spreadsheets. The result is vaccine wastage at one end and coverage gaps at the other — both invisible to the ministry of health until an outbreak exposes them.

A sovereign satellite stack changes the information geometry of the campaign. VSAT or LEO broadband terminals on refrigerated vehicles and static cold-store sites push real-time inventory and GPS track-logs back to a national campaign dashboard. High-resolution optical imagery — refreshed every 48–72 hours from a national or allied constellation — maps settlement density and road passability ahead of each campaign wave, letting planners reroute teams around washed-out bridges or newly accessible dry-season tracks. RF-derived population-mobility signals identify where people are actually moving, not where the census said they lived five years ago.

The operational payoff is measurable: coverage modelling tightens from ±20% to ±5%, cold-chain excursion alerts reach supervisors within minutes rather than days, and post-campaign geospatial audits confirm which micro-zones were missed and need catch-up rounds. Critically, the data never leaves national infrastructure — no commercial partner can throttle access, impose export controls or pull the service during a disease-emergency declaration when political pressure on multinationals is highest.

What matters

Vaccine cold-chain excursions lasting more than two hours render doses ineffective; satellite-connected sensors close that detection gap before the doses reach recipients.
WHO estimates 20 million children miss routine immunisation annually due to logistical failure, not vaccine shortage — real-time route optimisation directly attacks that number.
Campaign coverage audits using satellite imagery can verify field reports independently, eliminating the systematic over-reporting that distorts national immunisation statistics.
During epidemic response, commercial satellite operators have historically throttled or re-priced emergency bandwidth — a sovereign LEO constellation removes that single point of failure.

Sovereignty score: 8/10 — A nation that depends on foreign-operated satellites and commercial data pipes to run its vaccination campaigns surrenders operational control of its public health response at exactly the moment an epidemic makes that control most critical.

Commercial LEO broadband providers have re-priced or suspended services in politically sensitive emergencies, creating a coercive dependency precisely when epidemic-response bandwidth is non-negotiable.
Campaign coverage data — mapping which communities are immunised and which are not — is sensitive national health intelligence; routing it through foreign cloud platforms exposes it to third-country surveillance and potential politicisation of aid.
Export-controlled satellite imagery products from US-licensed vendors are subject to shutter-control and ITAR restrictions that can interrupt access during a declared national health emergency or regional conflict.
Domestic procurement of ground terminals, integration with national cold-chain sensor networks and locally trained operators builds institutional capacity that persists beyond any single campaign, compounding returns across the health system.

Reference architecture

Payload: Dual payload per satellite: VHF/UHF IoT downlink (868 MHz and 915 MHz bands) for cold-chain sensor telemetry with 50km ground footprint per pass; secondary 5m GSD multispectral optical imager (RGB + NIR) for settlement and road-passability mapping
Bus class: 6U cubesat, 12kg wet mass, 30W payload power; cold-chain IoT relay nodes require only low-duty-cycle store-and-forward, making the 6U form factor sufficient without compromising revisit economics
Orbit: Sun-synchronous LEO at 520–550km altitude; 36-satellite walker constellation (3 planes, 12 satellites per plane) delivering 90-minute average revisit globally with 6-hour maximum gap at equatorial latitudes
Ground segment: National gateway ground station co-located with the ministry of health data centre (S-band TT&C, X-band data downlink); two regional backup stations at provincial health hubs; SatNOGS amateur network as contingency for housekeeping telemetry only
Software & data
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References

WHO Immunization Agenda 2030: Delivery and Equity — WHO's Immunization Agenda 2030 identifies logistics and last-mile delivery as the dominant barriers to closing immunisation gaps, explicitly calling for digital and geospatial tools to improve campaign planning and monitoring.
UNICEF Supply Division: Cold Chain and Logistics — UNICEF documents that cold-chain failures account for a significant share of vaccine wastage in low- and middle-income countries, and supports connectivity-based temperature monitoring as a mitigation strategy.
ESA Earth Observation for Health: Malaria and Vaccination Programmes — ESA outlines how satellite-derived land-cover, flood-extent and settlement data have been operationally used to guide vaccination campaign planning in sub-Saharan Africa and South Asia.
ITU Connecting Health Facilities: Satellite Broadband for Last-Mile Connectivity — ITU highlights satellite broadband as the only technically viable solution for maintaining real-time health-system connectivity in areas where terrestrial infrastructure is absent or unreliable.
Gavi, the Vaccine Alliance: Reaching Every District — Gavi's Reaching Every District framework identifies geospatial micro-planning and real-time field reporting as priority investments for improving immunisation equity in fragile and remote settings.