diff --git a/orcestra_book/_toc.yml b/orcestra_book/_toc.yml
index 389a7da7..3a077f39 100644
--- a/orcestra_book/_toc.yml
+++ b/orcestra_book/_toc.yml
@@ -29,7 +29,7 @@ chapters:
     - file: operation/halo
     - file: operation/rvmeteor
     - file: operation/kingair
-    - file: operation/radiosondes
+    - file: operation/BCO_Radiosondes
     - file: flightplan_docs
       title: Flight plan docs
 - file: data
diff --git a/orcestra_book/figures/All_Variables_EUREC4A_vs_ORCESTRA.png b/orcestra_book/figures/All_Variables_EUREC4A_vs_ORCESTRA.png
new file mode 100644
index 00000000..ab8a3ef8
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diff --git a/orcestra_book/figures/BCO_07_SEP_2024.jpg b/orcestra_book/figures/BCO_07_SEP_2024.jpg
new file mode 100644
index 00000000..7f4cc9dc
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diff --git a/orcestra_book/figures/Collage1.jpg b/orcestra_book/figures/Collage1.jpg
new file mode 100644
index 00000000..ba21ca4a
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diff --git a/orcestra_book/figures/Collage2.jpg b/orcestra_book/figures/Collage2.jpg
new file mode 100644
index 00000000..599fe212
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diff --git a/orcestra_book/figures01.3_all_variables_EUR_vs_ORC_BCO_and_Sal.png b/orcestra_book/figures01.3_all_variables_EUR_vs_ORC_BCO_and_Sal.png
new file mode 100644
index 00000000..ab8a3ef8
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diff --git a/orcestra_book/operation.md b/orcestra_book/operation.md
index 8754df61..daffc382 100644
--- a/orcestra_book/operation.md
+++ b/orcestra_book/operation.md
@@ -34,10 +34,11 @@
 
 ```
 
-```{grid-item-card} Radiosondes
-:img-bottom: figures/Radiosondes.jpg
-:img-alt: Radiosondes
-:link: operation/radiosondes
+
+```{grid-item-card} BCO Radiosondes
+:img-bottom: figures/Radiosonde.jpg
+:img-alt: BCO Radiosondes
+:link: operation/BCO_Radiosondes
 :link-type: doc
 
 ```