What happened to the Starlink satellites?
On 3 February 2022, SpaceX launched 49 Starlink satellites. Subsequent research documented the loss of 38 following geomagnetic disturbances and enhanced atmospheric drag. NOAA researchers examined the event using observations, simulations, and information supplied by the operator. Their analysis found that an operational physics-based model represented the disturbed environment more effectively than the empirical density inputs used in the pre-launch analysis. Read the NOAA-led study.
Why storm strength did not tell the whole story
The satellites were in a low initial orbit before raising their altitude. In that mission phase, atmospheric density and the spacecraft’s response to drag mattered as much as the storm’s headline classification. A later study concluded that space weather acted together with low-altitude insertion and the satellites’ mass-to-area characteristics. Calling the incident simply a solar storm loss obscures those interacting factors. See the subsequent causal analysis.
What a satellite loss means economically
The spacecraft count is a documented outcome; it is not a verified dollar loss. Hardware value, launch allocation, replacement timing, and delayed service would all affect a financial assessment. We do not assign an unsupported total to this event.
For an operator or insurer, the useful question is which phase of the mission carried the exposure. A deployment risk should be assessed against deployment conditions, rather than an average environment at the final operating altitude. This is an operational interpretation of the incident, not a claim about the operator’s insurance coverage.
Lessons for nowcasting and forecasting in LEO
For mission planning, this case argues for bringing environmental forecasts into launch and orbit-raising decisions, updating those assumptions as observations arrive, and preserving the data used to make each decision. A generic storm alert is a starting point; operators also need to understand how the forecast maps to their spacecraft and planned activity.