diff --git a/.gitignore b/.gitignore
index 8254cdc7..5ea0a82f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,7 +32,10 @@ temp/**
 .env
 docs/notebooks/*.ipynb
 
+# test files generated by notebooks to ignore 
 notebooks/CTD_HUD2018030_017_01_UP.ODF
 notebooks/NAV_20130726.int
 notebooks/1801_001.int
 notebooks/nmeadata-*.txt
+notebooks/MI18MHDR.btl
+notebooks/56001001.p2022