add collect_modis_scans()

edosl0util/eos.py

@@ -75,3 +75,20 @@ def _modis_sort_key(p):
 
 def sort_modis(packets):
     return sorted(packets, key=_modis_sort_key)
+
+
+def collect_modis_scans(packets):
+    scan = None
+    scantimes = set()
+    for p in packets:
+        if p.apid not in (64, 957):
+            continue
+        tp = sourceid(p) if p.apid == 64 else "gbad"
+        if tp == "solar-diff" and p.stamp not in scantimes:
+            scantimes.add(p.stamp)
+            if scan is not None:
+                yield scan
+            scan = {"scantime": p.stamp, "packets": {}}
+        if tp not in scan["packets"]:
+            scan["packets"][tp] = []
+        scan["packets"][tp].append(p)