diff --git a/input/extra_photo_files/10ppbO2.photo b/input/extra_photo_files/10ppbO2.photo
new file mode 100644
index 0000000000000000000000000000000000000000..86905a2a13601b8d68eb0715ec62d57ae46cf5ff
--- /dev/null
+++ b/input/extra_photo_files/10ppbO2.photo
@@ -0,0 +1,2 @@
+-4.14278e-17 -1.01012e-20
+-6.16399e-15 -3.74197e-19