fixed minor error in IRF loading
@@ -421,7 +421,7 @@ class Observation:
if "aeff" in irf_dict.keys():
aeff = irf_dict["aeff"]
- if "edsip" in irf_dict.keys():
+ if "edisp" in irf_dict.keys():
edisp = irf_dict["edisp"]
if "psf" in irf_dict.keys():
