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-rw-r--r--lib/stwcs/wcsutil/altwcs.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/stwcs/wcsutil/altwcs.py b/lib/stwcs/wcsutil/altwcs.py
index 293f22d..aae1a9f 100644
--- a/lib/stwcs/wcsutil/altwcs.py
+++ b/lib/stwcs/wcsutil/altwcs.py
@@ -349,7 +349,7 @@ def deleteWCS(fname, ext, wcskey=" ", wcsname=" "):
hwcs = readAltWCS(fobj,i,wcskey=wkey)
if hwcs is None:
continue
- for k in hwcs:
+ for k in hwcs[::-1]:
del hdr[k]
#del hdr['ORIENT'+wkey]
prexts.append(i)