brugtgrej.dk

Space Weather Ops

Live ionospheric and solar monitoring · source N0NBH / hamqsl.com

System online
19 Oct 2026 2130 GMT
DX Cluster

Planetary K-index

INACTIVE
0Kp
A-index (24h)8
Scale 0 – 9

Solar Flux (SFI)

137
High activity
70120160250

Sunspots (SN)

66

Solar Cycle 25

Solar wind
392.1 km/s
Calm
IMF Bz
0.9 nT
Northward
Signal-to-noise
S0-S1
MUF
11.1 MHz MHz
Maximum usable frequency
X-ray class
B4.9
Background
Aurora
1
None
Proton flux
12
Particles / cm² s sr
Electron flux
1920
Particles / cm² s sr

HF band conditions

Good
Fair
Poor
Closed
80m-40m
DayFAIR
NightGOOD
30m-20m
DayGOOD
NightGOOD
17m-15m
DayGOOD
NightGOOD
12m-10m
DayFAIR
NightPOOR

Aurora & solar imagery

OVATION aurora forecast and live solar observations · NOAA SWPC

Aurora forecast northern hemisphere (NOAA OVATION)
Aurora north
OVATION · visible aurora
Aurora forecast southern hemisphere (NOAA OVATION)
Aurora south
OVATION · Australis
SUVI 195Å extreme ultraviolet image of the Sun
Sun · 195 Å EUV
GOES SUVI
SDO HMI magnetogram of the Sun
Sun · magnetogram
NASA SDO HMI
Source: services.swpc.noaa.gov · Updated continuously

3000 km MUF map

Real-time ionospheric map · KC2G · prop.kc2g.com

3000 km MUF propagation map from KC2G
Source: prop.kc2g.com · Updated every 15 minutesLearn more about MUF
HF band predictor

Estimate best band for a destination · based on live SFI/Kp and a simplified propagation model

SFI 137 · Kp 0 · 10/2026
Path setup
Distance: 5,995 km
Bearing: 291°
Path midpoint: 56.3°, -40.0° — night
Recommendations
Right now (21:00 UTC)
160M
60
80M
65
60M
74
40M
84
30M
95
20M
0
17M
0
15M
0
12M
0
10M
0
6M
0
Best window in selected time range
30M@ 21:00 UTC95/100
Hour-by-hour best band (21Z → 09Z)
UTCBest bandReliability
21:0030M95
22:0030M95
23:0030M95
00:0030M95
01:0030M95
02:0030M95
03:0030M95
04:0030M95
05:0030M95
06:0030M95
07:0030M95
08:0030M95
09:0030M95

Simplified propagation model: foF2 from SFI + solar zenith at path midpoint, M-factor from distance, D-layer absorption and auroral penalty at high Kp/latitude. Not a replacement for VOACAP or real spot observation.

3-day Kp forecast

3-hour bins · NOAA planetary index

NOAA SWPC
10-19
10-20
10-21
10-22
Grey = observed · light = predicted
QuietActiveStorm
Storm probability

R · S · G scales for the next 3 days

DateR blackoutS stormG storm
2026-10-19
25%M5%X
5%G1
2026-10-20
25%M5%X
5%G1
2026-10-21
25%M5%X
5%none
27-day outlook

SFI trend + expected daily max Kp

Long-term planning
Solar Flux (10.7 cm)85–105 sfu
Highest expected Kp / day27-day outlook

Data via N0NBH · hamqsl.com · brugtgrej.dk space weather