Common Questions

What is the Space Weather Prediction Center?: NOAA's operational forecasting centre for solar and geomagnetic activity, co-located at JSC to support crewed missions.Source: Lowdown briefing analysis
Did space weather affect Artemis II launch?: SWPC issued G2 and G1 geomagnetic storm watches during the Artemis II window, influencing TLI burn timing decisions.Source: Lowdown briefing analysis
What is a G2 geomagnetic storm?: A moderate geomagnetic storm on NOAA's scale, capable of increasing radiation exposure for astronauts outside Earth's magnetosphere.Source: Lowdown briefing analysis

Background

The Space Weather Prediction Center (SWPC) is NOAA's operational forecasting centre for solar and geomagnetic activity. During the Artemis II mission window it issued G2 and G1 geomagnetic storm watches tied to solar flare activity, directly influencing the timing of the trans-lunar injection burn.

SWPC staff are co-located at Johnson Space Center to provide real-time radiation data to flight surgeons and mission controllers. Their forecasts feed directly into crew exposure calculations run by the HERA sensor suite aboard Orion.

At solar maximum — the peak of the 11-year cycle, which coincides with Artemis II — the probability of mission-disrupting solar events is at its highest. SWPC's role has therefore expanded from a background advisory function to a flight-critical operational input for all crewed deep-space missions.

How the World Sees Them

United States

SWPC's JSC co-location makes space weather a direct input to flight operations, not merely advisory; staffing levels matter for crew safety.

Scientific community

Artemis II at solar maximum provides an unprecedented dataset for correlating SWPC forecasts with actual crew exposure readings.

International partners

ESA and other agencies integrate SWPC data into their mission planning, making the centre a de facto global space weather standard.