diff --git a/X50903.340 b/X50903.340
index 4ec034b..89ed22f 100644
--- a/X50903.340
+++ b/X50903.340
@@ -153,3 +153,6 @@ No.   Units      Temperature (K)
 144  4.38025         1.530
 145  4.44332         1.440
 146  4.47496         1.400
+147  5.0             1.350
+148  6.0             1.30
+