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Code Issues 13 Packages Projects Releases Wiki Activity

Short/long/closed display for each band calculated from latest data for each ionosonde station

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This commit is contained in:
Ian Renton
2026-05-21 20:54:08 +01:00
parent c38be5b588
commit c939a5c1a1
15 changed files with 151 additions and 58 deletions
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44
solarconditionsproviders/giroionosonde.py
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@@ -6,13 +6,14 @@ from threading import Thread, Event
import pytz
import requests
from core.constants import HTTP_HEADERS
from core.constants import HTTP_HEADERS, BANDS
from solarconditionsproviders.solar_conditions_provider import SolarConditionsProvider
POLL_INTERVAL = 3600 # 1 hour
STATIONS_INDEX = "datafiles/didbase-stations.csv"
LGDC_URL = "https://lgdc.uml.edu/common/DIDBGetValues"
HISTORY_HOURS = 24
HF_BANDS = [b for b in BANDS if b.is_ham_hf]
class GIROIonosonde(SolarConditionsProvider):
@@ -41,7 +42,8 @@ class GIROIonosonde(SolarConditionsProvider):
super().setup(solar_conditions, solar_conditions_cache)
self.update_data({"ionosonde_data": {
s["ursi"]: {"ursi": s["ursi"], "name": s["name"], "fof2": None, "muf": None, "luf": None}
s["ursi"]: {"ursi": s["ursi"], "name": s["name"], "fof2": None, "muf": None, "luf": None,
"band_states": None}
for s in self._stations
}})
@@ -75,7 +77,9 @@ class GIROIonosonde(SolarConditionsProvider):
try:
fof2, muf, luf = self._fetch_station_data(ursi, from_time, now)
if fof2 and muf:
ionosonde_data[ursi] = {"ursi": ursi, "name": name, "fof2": fof2, "muf": muf, "luf": luf or None}
band_states = self._compute_band_statess(fof2, muf, luf or {})
ionosonde_data[ursi] = {"ursi": ursi, "name": name, "fof2": fof2, "muf": muf,
"luf": luf or None, "band_states": band_states}
updated_count += 1
except Exception:
logging.warning(f"Could not fetch ionosonde data for {ursi} ({name})")
@@ -101,6 +105,40 @@ class GIROIonosonde(SolarConditionsProvider):
return None, None, None
return self._parse_all(response.text)
@staticmethod
def _latest(d):
"""Return the value with the highest timestamp key, or None if the dict is empty."""
return d[max(d.keys())] if d else None
@staticmethod
def _compute_band_statess(fof2_dict, muf_dict, luf_dict):
"""Compute HF band states from the latest foF2, MUF and LUF values.
States:
Closed if band frequency is below LUF (if known) or above MUF
Short if band frequency is >= LUF and < foF2 (good for NVIS)
Long if band frequency is >= foF2 and < MUF (good for DX)
"""
# We have a list of timestamped data for each value, but for this we only want the latest value
fof2 = GIROIonosonde._latest(fof2_dict)
muf = GIROIonosonde._latest(muf_dict)
luf = GIROIonosonde._latest(luf_dict)
if fof2 is None or muf is None:
return {}
band_states = {}
# Iterate over all ham HF bands, we don't care about the others at this point
for band in HF_BANDS:
freq = band.start_freq / 1000000
if freq > muf or (luf is not None and freq < luf):
band_states[band.name] = "Closed"
elif freq < fof2:
band_states[band.name] = "Short"
else:
band_states[band.name] = "Long"
return band_states
@staticmethod
def _parse_all(text):
"""Parse web server response and return (fof2_dict, muf_dict, luf_dict) keyed by UNIX timestamp."""