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-rw-r--r--stsci/sphere/great_circle_arc.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/stsci/sphere/great_circle_arc.py b/stsci/sphere/great_circle_arc.py
index 0d60389..c9ddbdf 100644
--- a/stsci/sphere/great_circle_arc.py
+++ b/stsci/sphere/great_circle_arc.py
@@ -285,7 +285,7 @@ def intersects_point(A, B, C):
length_diff = np.abs((left_length + right_length) - total_length)
- return np.any(length_diff < 1e-8)
+ return np.any(length_diff < 1e-10)
def angle(A, B, C, degrees=True):