56 lines
1.6 KiB
Markdown
56 lines
1.6 KiB
Markdown
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This is an MQTT sensor to send NOAA space weather data to Home Assistant.
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## Install
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1. Create an account at <https://urs.earthdata.nasa.gov>
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2. `pip install -r requirements.txt`
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3. `sudo apt install p7zip-full`
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### Google Chrome
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If you don't have Google Chrome installed (used to log into the NASA site), here's how to install it.
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```shell
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wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
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apt install ./google-chrome-stable_current_amd64.deb
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```
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## Run
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The lat/lon range is used to pick the region of the planet for generating statistics, for example your home state. To
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```shell
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LAT_RANGE_MIN=<lower range for lat bounding box> \
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LAT_RANGE_MAX=<upper range for lat bounding box> \
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LON_RANGE_MIN=<lower range for lon bounding box> \
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LON_RANGE_MAX=<upper range for lon bounding box> \
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CDDIS_USERNAME=<username> CDDIS_PASSWORD=<password> \
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MQTT_BROKER_HOST="<Home Assistant IP>" MQTT_BROKER_PORT=1883 MQTT_USERNAME="user" MQTT_PASSWORD="<password>" \
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python3 main.py
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```
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An example systemd service file is provided.
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### Home Assistant MQTT Config
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```yaml
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- state_topic: "space-weather/vtec"
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name: "VTEC"
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unit_of_measurement: "(10^16 el) / m^2"
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state_class: measurement
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unique_id: space_weather_vtec
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```
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## Data
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### VTEC
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<https://www.spaceweather.gov/products/us-total-electron-content>
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Unit: `(10^16 el) / m^2`
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VTEC, or Vertical TEC, is a specific type of TEC measurement that is taken along a path extending
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vertically from the Earth's surface to the edge of the atmosphere. So essentially, VTEC is a subset of TEC, with the
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difference lying in the specific path along which the measurement is taken.
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Updated hourly.
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