lgdc.uml.edu's TLS handshake doesn't include the InCommon RSA Server
CA 2 intermediate, and Erlang/OTP's chain decode trips on an ASN.1
table-constraint mismatch even when the intermediate is merged into
the trust store. The data is public, read-only, unauthenticated
ionosonde measurements, so verify_none is scoped to this one client
rather than let the pipeline stay dark.
Adds spans to 15 previously-unmeasured hot paths so every question we
might ask while tuning has a histogram to answer it:
External I/O:
- iem.fetch_iemre (gridded weather reanalysis)
- mrms.list_latest / mrms.download (precip radar)
- rtma.fetch_observation
- ncei.fetch_metar (historical 5-min METAR backfill)
- solar.fetch_indices (GFZ solar indices)
- swpc.fetch (SWPC Kp/F10.7/X-ray)
- giro.fetch (ionosonde)
- qrz.request, geocoder.geocode (callsign enrichment)
- srtm.download_tile (terrain tile download + gunzip)
- hrrr.download_grib_ranges (parallel byte-range fetch phase)
Subprocess:
- wgrib2.extract_grid / extract_grid_from_file / extract_grid_from_file_mapped
LiveView hot paths:
- propagation.scores_at (map score fetch + cache hit/miss counter)
- propagation.point_forecast (sparkline)
- propagation.point_detail (click-to-inspect)
- propagation.daily_outlook_at (/map outlook strip)
Worker-level end-to-end:
- worker.terrain_profile
- worker.mechanism_classify
- worker.mrms_fetch
Each event is registered in Microwaveprop.PromEx.InstrumentPlugin as
a Prometheus histogram (default / long buckets as appropriate) plus
a counter for the scores_at cache hit/miss ratio. Prometheus at
10.0.15.25 will start seeing the new series on the next scrape after
deploy.
First step toward physics-based HF / sporadic-E scoring. Polls GIRO's
DIDBase tabular endpoint every 10 minutes for two US ionosondes
(Millstone Hill MHJ45, Alpena AL945), parses the plain-text response
into observation rows, and upserts into a new ionosonde_observations
table keyed on (station_code, valid_time).
This gets foEs (E-layer sporadic critical frequency) into the database
as a direct measurement — the key input for predicting 144 MHz Es
openings via ITU-R P.534-6. foF2 + MUFD are the F2-layer inputs for
HF MUF predictions.
Not yet wired into scoring. Boulder/Wallops/Austin/Idaho/Point Arguello
are in the GIRO catalog but were silent when probed — add them back
if/when they come online.
Next steps: SWPC JSON (Kp, F10.7, sunspot), GOES X-ray flux, D-RAP text,
and the P.534-6 Es scoring factor that uses foEs at midpoint for the
144/440 band configs.
