Space Weather Forecast & Tracking
GNSS & terrestrial impact guidance
Kp Index
? The planetary K-index (Kp) measures geomagnetic disturbance on a 0-9 scale. Values >=4 indicate unsettled conditions; >=5 indicates a geomagnetic storm.0.3 →
Quiet
Source: GFZ Potsdam Hp30
GNSS Risk
? Composite risk score (0-100) based on Kp index (40%), Bz magnetic field (25%), solar wind speed (20%), and radio blackout scale (15%). Geomagnetic storms (Kp ≥5) guarantee at least High risk.8 Low
Nominal GNSS conditions. Normal precision operations may proceed. Standard monitoring recommended.
Active Alerts
? Current space weather alerts issued by NOAA's Space Weather Prediction Center within the last 24 hours.- minor solar radiation ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Current Estimated Kp — 15-Minute Intervals (Last 3 Hours)
? Near-real-time estimated Kp derived from 1-minute NOAA data, averaged into 15-minute buckets. Y-axis uses non-linear scaling to emphasize storm-level values.Data source: GFZ Potsdam Hp30
Local time — non-linear scale: Kp 0–4 (60%), 4–7 (30%), 7–9 (10%)
Kp 1–4 Normal
Kp 1 Quiet — no GNSS impact
Kp 2 Nominal accuracy
Kp 3 Minor aurora, no GNSS impact
Kp 4 (G0) Monitor GNSS quality
Kp 5–7 Storm
Kp 5 (G1) RTK degradation at mid-high latitudes, monitor quality
Kp 6 (G2) Significant GNSS errors, RTK fix drops common
Kp 7 (G3) Severe degradation, postpone precision work
Kp 8–9 Severe
Kp 8 (G4) GNSS severely degraded, lock loss likely
Kp 9 (G5) GNSS unusable for precision work
Understanding GNSS Reliability
How Space Weather Affects GPS, RTK, and Survey Accuracy
Overview of how solar activity impacts GNSS positioning and RTK performance.
Read article →When Should Drone Pilots Cancel Missions?
Kp thresholds, risk indicators, and go/no-go decision criteria for precision drone operations.
Read article →Why RTK Drones Drop from FIX to FLOAT
Common causes of RTK instability and the role of ionospheric disturbances.
Read article →