Update observatory database: 611 observatories

README.md

@@ -55,22 +55,22 @@ This dataset is suitable for **tabular classification** tasks.
 |--------|------|-------------|--------|--------|
 | `wikidata_id` | str | Wikidata entity ID (e.g. 'Q179224'); stable URI for enrichment and cross-referencing | Q87574922 | 0.0% |
 | `name` | string | Full official observatory name (e.g. 'Palomar Observatory', 'European Southern Observatory') | "Terrazza delle Stelle" observatory | 0.0% |
-| `country` | string | Country in which the observatory is physically located (e.g. 'United States', 'Chile'); uses full English name | Italy | 27.1% |
+| `country` | string | Country in which the observatory is physically located (e.g. 'United States', 'Chile'); uses full English name | Italy | 26.8% |
 | `latitude` | float64 | Geographic latitude in decimal degrees; range -90 to +90; positive = North; null if not recorded | 46.0190607 | 41.4% |
 | `longitude` | float64 | Geographic longitude in decimal degrees; range -180 to +180; positive = East; null if not recorded | 11.0402307 | 41.4% |
-| `elevation_m` | float64 | Altitude above sea level in metres; relevant for atmospheric transparency and seeing quality; range sea level to ~5,640 m (Atacama sites); null if not recorded | 124.687 | 92.4% |
-| `operator` | string | Institution or agency operating the observatory (e.g. 'NASA', 'ESO', 'Caltech'); null if not recorded in Wikidata | German Aerospace Center | 76.2% |
+| `elevation_m` | float64 | Altitude above sea level in metres; relevant for atmospheric transparency and seeing quality; range sea level to ~5,640 m (Atacama sites); null if not recorded | 124.687 | 92.5% |
+| `operator` | string | Institution or agency operating the observatory (e.g. 'NASA', 'ESO', 'Caltech'); null if not recorded in Wikidata | German Aerospace Center | 76.1% |
 | `opening_date` | string | Date the observatory was inaugurated or began operations (YYYY-MM-DD or YYYY); null if unknown | 1879-01-01 | 96.2% |
 
 ## Quick stats
 
-- **609** observatories from **60** countries
-- **357** with geographic coordinates
+- **611** observatories from **60** countries
+- **358** with geographic coordinates
 - **0** with aperture data
 - **46** with elevation data
 - Highest elevation: Caltech Submillimeter Observatory (13,570 m)
-- Estimated ground-based: **510**, space-based: **99**
-- Top countries: United States (110), United Kingdom (43), Italy (24), France (24), Netherlands (19)
+- Estimated ground-based: **512**, space-based: **99**
+- Top countries: United States (111), United Kingdom (43), Italy (24), France (24), Netherlands (19)
 - Top wavelength bands: 
 
 ## Usage
@@ -138,4 +138,4 @@ Created by [Julien Simon](https://julien.org) — AI Operating Partner at Fortin
 
 ## License
 
-[CC0-1.0](https://creativecommons.org/licenses/by/4.0/)
+[CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/)

data/observatories.parquet

@@ -1,3 +1,3 @@
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