SENSOR.md

How to read sensor value

The three main items you want to pay attention to are the SFI (Solar Flux Index), the K-Index and the A-Index.

Solar Flux Index

Summarization of the Sun's Radiation Output

• 70 – Not Good
• 80 – Good
• 90 – Better
• 100+ – Best

Solar A-Index

Daily Average of Magnetic Activity

• 0 – 7 Quiet
• 8 – 15 Unsettled
• 16 – 29 Active
• 30 – 49 Minor storm
• 50 – 99 Major storm
• 100 – 400 Severe storm

Solar K-Index

_{Updated every Hour}

• 0 Inactive
• 1 Very quiet
• 2 Quiet
• 3 Unsettled
• 4 Active
• 5 Minor storm
• 6 Major storm
• 7 Severe storm
• 8 Very severe storm
• 9 Extremely severe storm

Solar X-Ray

_{Updated every 10 minutes}

The Class sensor is the modern classification system for solar flares and use letters A, B, C, M, or X, according to the peak flux in watts per square metre (W/m2).

The Scale sensor is the numerical representation of the Class sensor and can be used to trigger automations and notifications.

Class to Scale sensor translation example

Class	Scale	Factor
A1.1	1.1	x1
A5.1	5.1	x1
B1.4	14	x10
B8.7	87	x10
C2.5	250	x100
C7.9	790	x100
M2.3	2300	x1000
M5.2	5200	x1000
M7.3	7300	x1000
X1.7	11000	x10000
X3.7	37000	x10000
X6.9	69000	x10000

Solar Graph

NOAA X-Ray data is very accurate (update every 10 minutes). In this graph you can see a spike with M9.1 solar Activity

Solar Flare Notification

For receive Solar Flare Notification you can create an Automation, this example send an alert to your companion App on your phone with custom message.

Under Settings -> Automation create new and configure with this Trigger:

platform: numeric_state
entity_id: sensor.ham_radio_propagation_solar_xray_scale
above: 1000

and this Actions, modify the name of your device and the message:

service: notify.mobile_app_iphone_di_emiliano
data:
  message: >-
    High solar activity Class: {{
    states('sensor.ham_radio_propagation_solar_xray') }}
  title: Smart Home Alert