fix for the offsets being... off

iff/aggregator.py

@@ -186,6 +186,12 @@ class Aggregator(object):
                 # aggregated IFF files, not into the original VIIRS granule!!!
                 # XXX needs generalizing (use self._bounds_key)
                 #     (try test case: iff start time > start time of 1st granule)
+                
+                # NICKB: attempted fix for the above
+                first_index = np.nonzero(self._bounds_key)[0][0]
+                if startY == 0:
+                  startY = startY - first_index
+
                 f[f >= 0] += startY
                 startY += f.shape[1]
             datalist.append(f)