Fix azimuth encoding

Azimuth values are now in [-180, 180], so set offset to 0.0 in order to prevent integer overflow.
pytroll · Jul 17, 2020 · 817a82e · 817a82e
1 parent ef204b7
commit 817a82e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/pygac/gac_io.py b/pygac/gac_io.py
@@ -519,7 +519,7 @@ def avhrrGAC_io(satellite_name, xutcs, startdate, enddate, starttime, endtime,
  g4.attrs["dataset_name"] = np.string_('Solar azimuth angle')
  g4.attrs["units"] = np.string_('Deg')
  g4.attrs["gain"] = np.float32(0.01)
- g4.attrs["offset"] = np.float32(180.0)
+ g4.attrs["offset"] = np.float32(0.0)
  g4.attrs["missingdata"] = np.int32(MISSING_DATA)
  g4.attrs["nodata"] = np.int32(MISSING_DATA)
  g4.attrs["starttime"] = np.string_(starttime[0:6])
@@ -532,7 +532,7 @@ def avhrrGAC_io(satellite_name, xutcs, startdate, enddate, starttime, endtime,
  g5.attrs["dataset_name"] = np.string_('Satellite azimuth angle')
  g5.attrs["units"] = np.string_('Deg')
  g5.attrs["gain"] = np.float32(0.01)
- g5.attrs["offset"] = np.float32(180.0)
+ g5.attrs["offset"] = np.float32(0.0)
  g5.attrs["missingdata"] = np.int32(MISSING_DATA)
  g5.attrs["nodata"] = np.int32(MISSING_DATA)
  g5.attrs["starttime"] = np.string_(starttime[0:6])