diff --git a/docs/CURRENT-STATE.md b/docs/CURRENT-STATE.md
index 102efb997..6346c1db6 100644
--- a/docs/CURRENT-STATE.md
+++ b/docs/CURRENT-STATE.md
@@ -4152,7 +4152,7 @@ its criteria cannot be silently ignored.
 | Datacenters ▣          | OSM extract (bundled)                                                                                                                                                                           | `src/data/infrastructure.js`                          | —                                                        | static                                                                            |
 | Dams ▰                 | OpenInfraMap/OSM extract (bundled)                                                                                                                                                              | `src/data/infrastructure.js`                          | —                                                        | static                                                                            |
 | Submarine Cables ◠     | TeleGeography public map (bundled)                                                                                                                                                              | `src/data/telegeographySubmarineCables.js`            | —                                                        | static                                                                            |
-| FIRMS Active Fires ▲   | NASA FIRMS live (VIIRS ×3 NRT + MODIS NRT, trailing 24h)                                                                                                                                        | `src/data/firmsHeatmap.js`                            | `/api/firms` (`FIRMS_MAP_KEY`)                           | 10 min (proxy TTL 30 min)                                                         |
+| FIRMS Active Fires ▲   | NASA FIRMS live (VIIRS ×2 NRT + MODIS NRT, trailing 24h)                                                                                                                                        | `src/data/firmsHeatmap.js`                            | `/api/firms` (`FIRMS_MAP_KEY`)                           | 10 min (proxy TTL 30 min)                                                         |
 | Street Level 📷 | Mapillary street-level imagery (vector tiles, Graph API, MapillaryJS) | `src/layers/streetLevel/` via `src/app/layers/streetLevel.js` | `/api/mapillary/status`, `/api/mapillary/tiles/coverage/{z}/{x}/{y}` (`MAPILLARY_CLIENT_TOKEN`) | camera-driven (320 ms debounce, ≤9 tiles, server memory cache 24 h) |
 | Wind 🌬                 | NOAA GFS 10 m wind (keyless, 0.25°→1° grid; animated particles)                                                                                                                                 | `src/data/wind.js`                                    | `/api/wind`                                              | 1 h (forecast cycle)                                                              |
 | GNSS Integrity 📡 (`gnss-integrity`) | adsb.lol point snapshot, low navigation accuracy binned per 0.5° cell (GEV NIC/NACp threshold + gpsjam.org formula and bands, keyless, ODbL) | `src/layers/gnss/` via `src/app/layers/gnss.js` | `/api/gnss-integrity` | camera-driven (600 ms debounce, minimum 2.5 s between reads) + 60s poll (server cache 60 s; 30 min rolling window) |
diff --git a/src/data/firmsInteraction.test.mjs b/src/data/firmsInteraction.test.mjs
index d735df3f8..9931c8b32 100644
--- a/src/data/firmsInteraction.test.mjs
+++ b/src/data/firmsInteraction.test.mjs
@@ -119,9 +119,10 @@ test('fire detection key survives a refetch that renumbers the index', () => {
 });
 
 test('two satellites over the same pixel at the same time stay distinct', () => {
-  // The proxy merges SNPP + NOAA-20 + NOAA-21 without dedup and their orbits
-  // overlap, so position and time alone are NOT unique. Collapsing them let a
-  // restored selection land on the other satellite's record.
+  // The proxy merges NOAA-20 + NOAA-21 without dedup and their orbits overlap,
+  // so position and time alone are NOT unique. Collapsing them let a restored
+  // selection land on the other satellite's record. Archived Suomi NPP (`N`)
+  // rows must stay distinct too.
   const base = makeFire({ satellite: 'N20' });
   const twin = makeFire({ satellite: 'N21' });
   const suomi = makeFire({ satellite: 'N' });