diff --git a/sql/s15/q10.sql b/sql/s15/q10.sql
new file mode 100644
index 0000000000000000000000000000000000000000..439a5bb02619a1bc585653060bf11e6c547cff9f
--- /dev/null
+++ b/sql/s15/q10.sql
@@ -0,0 +1 @@
+select count(*) from ForcedSource where psfFlux between 0.1 and 0.2;
