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-rw-r--r--distortion/mutil.py2
-rw-r--r--updatewcs/corrections.py2
2 files changed, 2 insertions, 2 deletions
diff --git a/distortion/mutil.py b/distortion/mutil.py
index d656b32..2effade 100644
--- a/distortion/mutil.py
+++ b/distortion/mutil.py
@@ -250,7 +250,7 @@ def read_tdd_coeffs(phdr):
n = int(phdr["TDDORDER"])
else:
print 'TDDORDER kw not present, TDD correction will not be applied.'
- return skew_coeffs
+ return None
a = np.zeros((n+1,), np.float64)
b = np.zeros((n+1,), np.float64)
diff --git a/updatewcs/corrections.py b/updatewcs/corrections.py
index eac4b6e..861b8ab 100644
--- a/updatewcs/corrections.py
+++ b/updatewcs/corrections.py
@@ -95,7 +95,7 @@ class TDDCorr(object):
# Using default pre-SM4 coefficients
skew_coeffs = {'TDD_A':[0.095,0.090/2.5],
'TDD_B':[-0.029,-0.030/2.5],
- 'TDD_DATE':2004.5}
+ 'TDD_DATE':2004.5,'TDDORDER':1}
if not isinstance(ext_wcs.date_obs,float):
year,month,day = ext_wcs.date_obs.split('-')