diff --git a/test/calibration.jl b/test/calibration.jl
index 6f82a5cab8c5b4e65122de4e55e5caadadeb52f7..e736d688b375d8ffcf88850999eae29996440dfd 100644
--- a/test/calibration.jl
+++ b/test/calibration.jl
@@ -26,8 +26,13 @@ end
 
 @testset "orientations" begin
     o = read(datapath("calib", "KM3NeT_00000133_D_1.0.0_00017397_00017496_1.orientations.root"), Orientations)
+    @show o
     module_id = 817589211
     min_t, max_t = extrema(o.times[module_id])
+    Δt = max_t - min_t
     @test [0.8260205110995139, 0.003912907129683348, -0.004395551387888641, -0.5636093359133512] == o(module_id, min_t)
     @test [0.8289446524907407, 0.004590185819553083, -0.0007479055911552097, -0.5593113032456739] == o(module_id, max_t)
+    @test [0.8297266567631056, 0.002991865243189534, -0.004798371006076004, -0.5581412898494195] == o(module_id, min_t + Δt/2)
+    @test [0.8305219131347711, 0.003947997911424212, -0.0042572917986734805, -0.5569556899628482] == o(module_id, min_t + Δt/3)
+
 end