Nominal
Kp 1.7 · steady
R0Radio Blackoutnone
S0Radiation Stormnone
G0Geomagnetic Stormnone
GEO Satellites
Geostationary belt — measured in situ by GOES at 35,786 km.
Solar X-Ray Flux
GOES-18 · 0.1-0.8nmB4.2
4.20e-7 W/m² long channel · 1.00e-9 short
Drives HF radio blackouts and the R scale
Magnetometer
GOES-19 · at GEO51.7nT (Hp)
He 57.0 · Hn -0.4 · total 77.0 nT
Field compression precedes substorm injection
Energetic Particles
GOES-180.25
pfu ≥10 MeV · S0
SEU / dose risk
158
e⁻ ≥2 MeV · normal
Deep-dielectric charging
LEO Satellites
Low Earth orbit — drag, ionospheric propagation, and storm-time heating.
Solar Wind & IMF
DSCOVR/ACE · L1-1.1
Bz nT
479
km/s
2.4
p/cc
Southward Bz couples energy into the magnetosphere
Geomagnetic Activity Indices
NOAA Kp · Kyoto Dst1.7
Kp · steady
-38
Dst nT · weak
Dst down 11 nT in the last hour — ring current drives drag
Ionospheric GIM
GloTECGloTEC ionospheric map unavailable right now.