use glotec instead

feeder/README.md

@@ -7,18 +7,8 @@ EarthData which is done through Selenium and the Chrome browser.
 
 1. Create an account at <https://urs.earthdata.nasa.gov>
 2. `pip install -r requirements.txt`
-3. `sudo apt-get install p7zip-full redis-server`
+3. `sudo apt-get install redis-server`
-4. `sudo apt-get install dvipng texlive-latex-extra texlive-fonts-recommended cm-super`
+4. `sudo systemctl enable --now redis-server`
-5. `sudo systemctl enable --now redis-server`
-
-### Google Chrome
-
-If you don't have Google Chrome installed (used to log into the NASA site), here's how to install it.
-
-```shell
-wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
-apt install ./google-chrome-stable_current_amd64.deb
-```
 
 ## Run
 
@@ -29,7 +19,6 @@ LAT_RANGE_MIN=<lower range for lat bounding box> \
 LAT_RANGE_MAX=<upper range for lat bounding box> \
 LON_RANGE_MIN=<lower range for lon bounding box> \
 LON_RANGE_MAX=<upper range for lon bounding box> \
-CDDIS_USERNAME=<username> CDDIS_PASSWORD=<password> \
 MQTT_BROKER_HOST="<Home Assistant IP>" MQTT_BROKER_PORT=1883 MQTT_USERNAME="user" MQTT_PASSWORD="<password>" \
 python3 mqtt.py
 ```
@@ -39,24 +28,19 @@ Example systemd service files are provided.
 ### Home Assistant MQTT Config
 
 ```yaml
-mqtt:
+- state_topic:         "space-weather/glotec"
-  - state_topic: "space-weather/vtec"
+  name:                "GloTEC"
-    name: "VTEC"
+  unit_of_measurement: "(10^16) / m^-2"
-    unit_of_measurement: "(10^16 el) / m^2"
+  state_class:         measurement
-    state_class: measurement
+  unique_id:           space_weather_glotec
-    unique_id: space_weather_vtec
 ```
 
 ## Data
 
-### VTEC
+### GloTEC
 
-<https://www.spaceweather.gov/products/us-total-electron-content>
+<https://www.swpc.noaa.gov/experimental/glotec>
 
-Unit: `(10^16 el) / m^2`
+Unit: `(10^16) / m^-2`
-
-VTEC, or Vertical TEC, is a specific type of TEC measurement that is taken along a path extending
-vertically from the Earth's surface to the edge of the atmosphere. Essentially, VTEC is a subset of TEC, with the
-difference lying in the specific path along which the measurement is taken.
 
 Updated hourly.

feeder/cache.py

@@ -1,37 +1,21 @@
 import logging
-import os
 import pickle
-import sys
 import time
-from datetime import datetime
 
 from redis import Redis
 
-from lib.cddis_fetch import fetch_latest_ionex
+from lib.glotec import get_latest_glotec
-from lib.tecmap import get_tecmaps, parse_ionex_datetime
 
 logging.basicConfig(level=logging.INFO)
 
-CDDIS_USERNAME = os.getenv('CDDIS_USERNAME')
-CDDIS_PASSWORD = os.getenv('CDDIS_PASSWORD')
-if not CDDIS_USERNAME or not CDDIS_PASSWORD:
-    logging.critical('Must set CDDIS_USERNAME and CDDIS_PASSWORD environment variables')
-    sys.exit(1)
-
 
 def main():
     redis = Redis(host='localhost', port=6379, db=0)
     redis.flushall()
     while True:
-        utc_hr = datetime.utcnow().hour
+        logging.info('Fetching latest GLOTEC data')
-        logging.info('Fetching latest IONEX data')
+        geojson = get_latest_glotec()
-        logging.info(f'Using hour {utc_hr}')
+        redis.set('glotec', pickle.dumps(geojson))
-        ionex_data = fetch_latest_ionex(CDDIS_USERNAME, CDDIS_PASSWORD)
-        parsed_data = []
-        for tecmap, epoch in get_tecmaps(ionex_data):
-            parsed_dt = parse_ionex_datetime(epoch)
-            parsed_data.append((tecmap, parsed_dt))
-        redis.set('tecmap_data', pickle.dumps(parsed_data))
         logging.info('Scrape complete')
         time.sleep(1800)  # 30 minutes
 

feeder/global-image.py

@@ -1,58 +0,0 @@
-import io
-import logging
-import pickle
-import time
-from datetime import datetime
-
-import schedule
-from PIL import Image
-from redis import Redis
-
-from lib.tecmap import plot_tec_map
-
-logging.basicConfig(level=logging.INFO)
-
-# Entire planet
-LAT_RANGE_MIN = -90
-LAT_RANGE_MAX = 90
-LON_RANGE_MIN = -180
-LON_RANGE_MAX = 180
-
-
-def main():
-    redis = Redis(host='localhost', port=6379, db=0)
-
-    utc_hr = datetime.utcnow().hour
-    logging.info(f'Generating plot for hour {utc_hr}')
-
-    data = redis.get('tecmap_data')
-    while data is None:
-        logging.warning('Redis has not been populated yet. Is cache.py running? Sleeping 10s...')
-        time.sleep(10)
-        data = redis.get('tecmap_data')
-    ionex_data = pickle.loads(data)
-
-    for tecmap, epoch in ionex_data:
-        if epoch.hour == utc_hr:
-            plt = plot_tec_map(tecmap, [float(LON_RANGE_MIN), float(LON_RANGE_MAX)], [float(LAT_RANGE_MIN), float(LAT_RANGE_MAX)], timestamp_utc=epoch)[1]
-            buf = io.BytesIO()
-            plt.savefig(buf, format='png', bbox_inches='tight', pad_inches=0.1, dpi=110)
-            plt.close()
-            del plt
-
-            buf.seek(0)
-            img = Image.open(buf)
-            buf = io.BytesIO()
-            img.save(buf, format='PNG')
-
-            redis.set('global_map', buf.getvalue())
-            buf.close()
-    logging.info(f'Finished hour {utc_hr}')
-
-
-if __name__ == '__main__':
-    main()
-    schedule.every().hour.at(':00').do(main)
-    while True:
-        schedule.run_pending()
-        time.sleep(1)

feeder/lib/cddis_fetch.py

@@ -1,89 +0,0 @@
-import datetime
-import logging
-import subprocess
-import sys
-import tempfile
-from pathlib import Path
-
-import chromedriver_autoinstaller
-import requests
-from selenium import webdriver
-from selenium.webdriver import Keys
-from selenium.webdriver.chrome.options import Options
-from selenium.webdriver.common.by import By
-from selenium.webdriver.support import expected_conditions as EC
-from selenium.webdriver.support.ui import WebDriverWait
-
-IONEX_BASE_URL = 'https://cddis.nasa.gov/archive/gnss/products/ionex/'
-
-
-def fetch_latest_ionex(username: str, password: str):
-    now = datetime.date.today()
-    url = IONEX_BASE_URL + str(now.year)
-
-    chromedriver_autoinstaller.install()
-    options = Options()
-    options.add_argument('--headless=new')
-    driver = webdriver.Chrome(options=options)
-    driver.get(url)
-
-    # Login
-    username_field = WebDriverWait(driver, 30).until(EC.presence_of_element_located((By.ID, "username")))
-    username_field.clear()
-    username_field.send_keys(username)
-    password_field = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, "password")))
-    password_field.clear()
-    password_field.send_keys(password)
-    password_field.send_keys(Keys.RETURN)
-
-    # Wait until we're redirected to the right page.
-    WebDriverWait(driver, 30).until(EC.visibility_of_element_located((By.ID, "parDirTextContainer")))
-
-    # Get the days in the year.
-    day_elements = driver.find_elements(By.XPATH, '//div[@class="archiveDir"]/div[@class="archiveDirTextContainer"]/a[@class="archiveDirText"]')
-    day_urls = [element.get_attribute('href') for element in day_elements]
-
-    # Load the latest day.
-    today_url = day_urls[-2]  # last element is predictions for tomorrow so we want the second to last one
-    logging.info(f'Using day {today_url.split("/")[-1]}')
-    driver.get(today_url)
-
-    # Find our file.
-    file_elements = driver.find_elements(By.XPATH, '//a[@class="archiveItemText"]')
-    file_urls = [element.get_attribute('href') for element in file_elements]
-    found_url = None
-    for u in file_urls:
-        parts = u.split('/')
-        if parts[-1].startswith('c2pg'):
-            found_url = u
-            break
-    if found_url is None:
-        print('Did not find c2pg')
-        sys.exit(1)
-
-    # Download our file.
-    auth_cookie = None
-    for cookie in driver.get_cookies():
-        if cookie['name'] == 'ProxyAuth':
-            auth_cookie = cookie['value']
-            break
-    if auth_cookie is None:
-        print('Did not find ProxyAuth cookie')
-        sys.exit(1)
-
-    driver.close()
-    del driver
-
-    # Download data.
-    zip_data_r = requests.get(found_url, cookies={'ProxyAuth': auth_cookie})
-    zip_data_r.raise_for_status()
-
-    # Read data.
-    tmp_file = tempfile.NamedTemporaryFile()
-    tmp_file.write(zip_data_r.content)
-    tmp_dir = tempfile.TemporaryDirectory()
-    subprocess.run(["7z", "e", tmp_file.name, f"-o{tmp_dir.name}"], check=True, stdout=subprocess.PIPE)
-    p = Path(tmp_dir.name)
-    target_file = list(p.iterdir())[-1]
-    data = target_file.read_text()
-    return data

feeder/lib/glotec.py

@@ -0,0 +1,66 @@
+import time
+
+import cartopy.crs as ccrs
+import matplotlib.pyplot as plt
+import numpy as np
+import requests
+from dateutil.parser import parse
+from dateutil.tz import tzutc, tzlocal
+from matplotlib.colors import LinearSegmentedColormap
+from mpl_toolkits.axes_grid1 import make_axes_locatable
+from scipy.interpolate import griddata
+
+
+def get_latest_glotec():
+    r = requests.get('https://services.swpc.noaa.gov/experimental/products/glotec/geojson_2d_urt.json')
+    r.raise_for_status()
+    index_json = r.json()[-1]
+    data_url = 'https://services.swpc.noaa.gov' + index_json['url']
+    r2 = requests.get(data_url)
+    r2.raise_for_status()
+    return r2.json()
+
+
+def plot_glotec_map(data: dict, lon_range: list, lat_range: list):
+    lons = []
+    lats = []
+    tec_values = []
+    for feature in data['features']:
+        lon, lat = feature['geometry']['coordinates']
+        tec = feature['properties']['tec']
+        lons.append(lon)
+        lats.append(lat)
+        tec_values.append(tec)
+
+    lons = np.array(lons)
+    lats = np.array(lats)
+    tec_values = np.array(tec_values)
+
+    lon_grid, lat_grid = np.meshgrid(np.linspace(lon_range[0], lon_range[1], 100), np.linspace(lat_range[0], lat_range[1], 100))
+
+    # Interpolate the TEC values onto the regular grid
+    tec_grid = griddata((lons, lats), tec_values, (lon_grid, lat_grid), method='linear')
+
+    proj = ccrs.PlateCarree()
+    f, ax = plt.subplots(1, 1, subplot_kw=dict(projection=proj))
+
+    colors = ['#33184a', '#4454c3', '#4294ff', '#1ad2d2', '#3cf58e', '#9cfe40', '#dde037', '#fdac34', '#f26014', '#ca2a04', '#7A0403']
+    custom_cmap = LinearSegmentedColormap.from_list('custom', colors)
+
+    h = ax.pcolormesh(lon_grid, lat_grid, tec_grid, cmap=custom_cmap, vmin=0, vmax=100, transform=proj)
+
+    ax.coastlines()
+
+    timestamp_utc = parse(data['time_tag'])
+    timestamp_local = timestamp_utc.replace(tzinfo=tzutc()).astimezone(tzlocal())
+    plt.title(timestamp_local.strftime(f'%H:%M %m-%d-%Y {time.tzname[0]}'), fontsize=12, y=1.04)
+
+    plt.suptitle('Global Total Electron Content', fontsize=16, y=0.87)
+    divider = make_axes_locatable(ax)
+    ax_cb = divider.new_horizontal(size='5%', pad=0.1, axes_class=plt.Axes)
+    f.add_axes(ax_cb)
+    cb = plt.colorbar(h, cax=ax_cb)
+    plt.rc('text', usetex=True)
+    cb.set_label('VTEC ($10^{16}*\\mathrm{m}^{-2}$)')
+
+    return tec_grid, plt

feeder/lib/tecmap.py

@@ -1,70 +0,0 @@
-import re
-import time
-from datetime import datetime
-
-import cartopy.crs as ccrs
-import matplotlib.pyplot as plt
-import numpy as np
-from dateutil.tz import tzutc, tzlocal
-from mpl_toolkits.axes_grid1 import make_axes_locatable
-
-"""
-https://github.com/daniestevez/jupyter_notebooks/blob/master/IONEX.ipynb
-"""
-
-
-def parse_ionex_datetime(s: str):
-    match = re.match(r'\s*(\d{4})\s*(\d{1,2})\s*(\d{1,2})\s*(\d{1,2})\s*(\d{1,2})\s*(\d{1,2})', s)
-    if match:
-        year, month, day, hour, minute, second = map(int, match.groups())
-        return datetime(year, month, day, hour, minute, second)
-    else:
-        raise ValueError("Invalid date format")
-
-
-def parse_map(tecmap, exponent=-1):
-    tecmap = re.split('.*END OF TEC MAP', tecmap)[0]
-    return np.stack([np.fromstring(l, sep=' ') for l in re.split('.*LAT/LON1/LON2/DLON/H\\n', tecmap)[1:]]) * 10 ** exponent
-
-
-def get_tecmaps(ionex: str):
-    for tecmap in ionex.split('START OF TEC MAP')[1:]:
-        lines = tecmap.split('\n')
-        epoch = lines[1].strip() if len(lines) > 1 else None
-        yield parse_map(tecmap), epoch
-
-
-def plot_tec_map(tecmap, lon_range: list, lat_range: list, timestamp_utc: datetime = None):
-    proj = ccrs.PlateCarree()
-    f, ax = plt.subplots(1, 1, subplot_kw=dict(projection=proj))
-
-    # Create arrays of latitudes and longitudes to match the geographical grid of the TEC map data.
-    # This is hard coded and should never change.
-    lat = np.arange(-87.5, 87.5, 2.5)
-    lon = np.arange(-180, 180, 5.0)
-
-    # Create a mask for the data in the lat/lon range
-    lon_mask = (lon >= lon_range[0]) & (lon < lon_range[1])
-    lat_mask = (lat >= lat_range[0]) & (lat < lat_range[1])
-    mask = np.ix_(lat_mask, lon_mask)
-
-    # Select only the data in the lat/lon range
-    tecmap_ranged = tecmap[mask]
-
-    # Plot the TEC map
-    h = plt.imshow(tecmap_ranged, cmap='viridis', vmin=0, vmax=100, extent=(lon_range[0], lon_range[1], lat_range[0], lat_range[1]), transform=proj)
-
-    # Make graph pretty
-    ax.coastlines()
-    if timestamp_utc:
-        timestamp_local = timestamp_utc.replace(tzinfo=tzutc()).astimezone(tzlocal())
-        plt.title(timestamp_local.strftime(f'%H:%M %m-%d-%Y {time.tzname[0]}'), fontsize=12, y=1.04)
-    plt.suptitle('Vertical Total Electron Count', fontsize=16, y=0.87)
-    divider = make_axes_locatable(ax)
-    ax_cb = divider.new_horizontal(size='5%', pad=0.1, axes_class=plt.Axes)
-    f.add_axes(ax_cb)
-    cb = plt.colorbar(h, cax=ax_cb)
-    plt.rc('text', usetex=True)
-    cb.set_label('TECU ($10^{16} \\mathrm{el}/\\mathrm{m}^2$)')
-
-    return tecmap_ranged, plt

feeder/mqtt.py

@@ -8,9 +8,10 @@ from datetime import datetime, timezone
 
 import numpy as np
 import paho.mqtt.client as mqtt
+from dateutil.parser import parse
 from redis import Redis
 
-from lib.tecmap import plot_tec_map
+from lib.glotec import plot_glotec_map
 
 logging.basicConfig(level=logging.INFO)
 
@@ -30,12 +31,6 @@ if not LAT_RANGE_MIN or not LAT_RANGE_MAX or not LON_RANGE_MIN or not LON_RANGE_
     print(LAT_RANGE_MIN, LAT_RANGE_MAX, LON_RANGE_MIN, LON_RANGE_MAX)
     sys.exit(1)
 
-CDDIS_USERNAME = os.getenv('CDDIS_USERNAME')
-CDDIS_PASSWORD = os.getenv('CDDIS_PASSWORD')
-if not CDDIS_USERNAME or not CDDIS_PASSWORD:
-    logging.critical('Must set CDDIS_USERNAME and CDDIS_PASSWORD environment variables')
-    sys.exit(1)
-
 client = mqtt.Client(client_id=MQTT_CLIENT_ID)
 if MQTT_USERNAME and MQTT_PASSWORD:
     client.username_pw_set(MQTT_USERNAME, MQTT_PASSWORD)
@@ -63,29 +58,25 @@ def main():
     redis = Redis(host='localhost', port=6379, db=0)
 
     while True:
-        data = redis.get('tecmap_data')
+        data = redis.get('glotec')
         while data is None:
             logging.warning('Redis has not been populated yet. Is cache.py running? Sleeping 10s...')
             time.sleep(10)
-            data = redis.get('tecmap_data')
+            data = redis.get('glotec')
-        ionex_data = pickle.loads(data)
+        geojson = pickle.loads(data)
 
         utc_hr = datetime.now(timezone.utc).hour
         logging.info(f'Using hour {utc_hr}')
 
-        avg_tec = None
+        glotec_map_ranged, _ = plot_glotec_map(geojson, [float(LON_RANGE_MIN), float(LON_RANGE_MAX)], [float(LAT_RANGE_MIN), float(LAT_RANGE_MAX)])
-        for tecmap, epoch in ionex_data:
+        avg_tec = np.mean(glotec_map_ranged)
-            if epoch.hour == utc_hr:
+        logging.info(f'Data timestamp: {parse(geojson["time_tag"]).isoformat()}')
-                tecmap_ranged, _ = plot_tec_map(tecmap, [float(LON_RANGE_MIN), float(LON_RANGE_MAX)], [float(LAT_RANGE_MIN), float(LAT_RANGE_MAX)])
-                avg_tec = np.mean(tecmap_ranged)
-                logging.info(f'Data timestamp: {epoch.isoformat()}')
-                break
         latest = round(avg_tec, 1)
-        publish('vtec', latest)
+        publish('glotec', latest)
 
         del data
-        del ionex_data
+        del geojson
-        del tecmap_ranged
+        del glotec_map_ranged
         del avg_tec
         del latest
         gc.collect()

feeder/requirements.txt

@@ -11,4 +11,5 @@ Pillow
 flask==3.0.3
 schedule==1.2.2
 gunicorn==23.0.0
-python-dateutil==2.9.0.post0
+python-dateutil==2.9.0.post0
+scipy==1.14.1

feeder/server.py

@@ -1,39 +0,0 @@
-import datetime
-import io
-
-import redis
-from PIL import Image, ImageDraw, ImageFont
-from flask import Flask, send_file, make_response
-
-NO_MAP_STR = 'NO GLOBAL MAP AVAILABLE'
-
-app = Flask(__name__)
-redis_client = redis.Redis(host='localhost', port=6379)
-
-
-@app.route('/global')
-def serve_global_map():
-    global_map_data = redis_client.get('global_map')
-    if global_map_data is None:
-        img = Image.new('RGB', (633, 356), color=(255, 255, 255))
-        d = ImageDraw.Draw(img)
-        fnt = ImageFont.load_default(size=30)
-        w, h = fnt.getbbox(NO_MAP_STR)[2:4]
-        d.text(((500 - w) / 2, (300 - h) / 2), NO_MAP_STR, font=fnt, fill=(0, 0, 0))
-        buf = io.BytesIO()
-        img.save(buf, format='PNG')
-        buf.seek(0)
-        return send_file(buf, mimetype='image/png')
-
-    buf = io.BytesIO(global_map_data)
-    buf.seek(0)
-    response = make_response(send_file(buf, mimetype='image/png'))
-    expires = datetime.datetime.now()
-    expires = expires + datetime.timedelta(minutes=10)
-    response.headers['Cache-Control'] = 'public, max-age=600'
-    response.headers['Expires'] = expires.strftime("%a, %d %b %Y %H:%M:%S GMT")
-    return response
-
-
-if __name__ == '__main__':
-    app.run()

feeder/systemd/space-weather-global-image.service

@@ -1,15 +0,0 @@
-[Unit]
-Description=Space Weather Global Image Generator
-After=network.target space-weather-cache.service
-
-[Service]
-Type=simple
-User=homeassistant
-EnvironmentFile=/etc/secrets/space-weather
-ExecStart=/srv/ha-noaa-space-weather/venv/bin/python /srv/ha-noaa-space-weather/feeder/global-image.py
-SyslogIdentifier=space-weather-global-image
-Restart=on-failure
-RestartSec=5s
-
-[Install]
-WantedBy=multi-user.target

feeder/systemd/space-weather-server.service

@@ -1,16 +0,0 @@
-[Unit]
-Description=Space Weather Server
-After=network.target
-
-[Service]
-Type=simple
-User=homeassistant
-EnvironmentFile=/etc/secrets/space-weather
-WorkingDirectory=/srv/ha-noaa-space-weather/feeder
-ExecStart=/srv/ha-noaa-space-weather/venv/bin/gunicorn --workers 7 --bind 0.0.0.0:5000 server:app --access-logfile '-' --error-logfile '-'
-SyslogIdentifier=space-weather-server
-Restart=on-failure
-RestartSec=5s
-
-[Install]
-WantedBy=multi-user.target