Add atlas_measurements docs

iyp/crawlers/ripe/README.md

@@ -47,6 +47,19 @@ ASN(s), and country.
 (:IP {ip: '202.214.97.16'})-[:ASSIGNED]->(:AtlasProbe {id: 6425})
 ```
 
+### Atlas Measurements - `atlas_measurements.py`
+
+We fetch the [list of probe measurements](https://atlas.ripe.net/api/v2/measurements) to obtain the measurement data of the `AtlasProbe`. This data is based on the probe's ID, connected through relationships defined by `PART_OF` and `TARGET`. The `TARGET` relationship encompass associations with both `DOMAIN` and `IP`.
+
+The Cypher query for these relationships appears as follows:
+
+```Cypher
+(:AtlasProbe)-[:PART_OF]->(:AtlasMeasurement)-[:TARGET]->(:DomainName)
+(:AtlasProbe)-[:PART_OF]->(:AtlasMeasurement)-[:TARGET]->(:IP)
+```
+
+This query is designed to identify `AtlasProbes` linked via the `PART_OF` relationship to `AtlasMeasurements`, which, in turn, are linked through `TARGET` to either a `DomainName` or an `IP`.
+
 ## Dependence
 
 This crawler is not depending on other crawlers.

iyp/crawlers/ripe/atlas_measurements.py

@@ -142,13 +142,10 @@ def run(self):
                   'page_size': 500}
         r = self.session.get(URL, params=params)
         next_url, data = self.__process_response(r)
-        count = 0
         while next_url:
             next_url, next_data = self.__execute_query(next_url)
             data += next_data
             logging.info(f'Added {len(next_data)} probes. Total: {len(data)}')
-            if count == 5:
-                break
         print(f'Fetched {len(data)} probe measurements', file=sys.stderr)
 
         # Transform the data to be compatible with the flatdict format.