diff --git a/crates/lox_core/src/bodies/cip.rs b/crates/lox_core/src/bodies/cip.rs
index 0ec3649c..8673a25e 100644
--- a/crates/lox_core/src/bodies/cip.rs
+++ b/crates/lox_core/src/bodies/cip.rs
@@ -9,4 +9,4 @@
 // TODO: Remove this once all module components are actively used.
 #![allow(dead_code)]
 
-pub mod xy;
+pub mod xy06;
diff --git a/crates/lox_core/src/bodies/cip/xy.rs b/crates/lox_core/src/bodies/cip/xy06.rs
similarity index 98%
rename from crates/lox_core/src/bodies/cip/xy.rs
rename to crates/lox_core/src/bodies/cip/xy06.rs
index 18ef484f..c511aea3 100644
--- a/crates/lox_core/src/bodies/cip/xy.rs
+++ b/crates/lox_core/src/bodies/cip/xy06.rs
@@ -39,7 +39,7 @@ struct NutationComponents {
 
 /// (X, Y) coordinates of the Celestial Intermediate Pole (CIP) using the the IAU 2006 precession
 /// and IAU 2000A nutation models.
-pub fn cip_xy(t: TDBJulianCenturiesSinceJ2000) -> XY {
+pub fn xy(t: TDBJulianCenturiesSinceJ2000) -> XY {
     let powers_of_t = powers_of_t(t);
     let fundamental_args = fundamental_args(t);
     let polynomial_components = polynomial_components(&powers_of_t);
@@ -187,7 +187,7 @@ mod tests {
     #[test]
     fn test_cip_xy_jd0() {
         let jd0: TDBJulianCenturiesSinceJ2000 = -67.11964407939767;
-        let xy = cip_xy(jd0);
+        let xy = xy(jd0);
         assert_float_eq!(xy[0], -0.4088355637476968, rel <= TOLERANCE);
         assert_float_eq!(xy[1], -0.38359667445777073, rel <= TOLERANCE);
     }
@@ -195,7 +195,7 @@ mod tests {
     #[test]
     fn test_cip_xy_j2000() {
         let j2000: TDBJulianCenturiesSinceJ2000 = 0.0;
-        let xy = cip_xy(j2000);
+        let xy = xy(j2000);
         assert_float_eq!(xy[0], -0.0000269463795685740, rel <= TOLERANCE);
         assert_float_eq!(xy[1], -0.00002800472282281282, rel <= TOLERANCE);
     }
@@ -203,7 +203,7 @@ mod tests {
     #[test]
     fn test_cip_xy_j2100() {
         let j2100: TDBJulianCenturiesSinceJ2000 = 1.0;
-        let xy = cip_xy(j2100);
+        let xy = xy(j2100);
         assert_float_eq!(xy[0], 0.00972070446172924, rel <= TOLERANCE);
         assert_float_eq!(xy[1], -0.0000673058699616719, rel <= TOLERANCE);
     }
diff --git a/crates/lox_core/src/bodies/cip/xy/amplitudes.rs b/crates/lox_core/src/bodies/cip/xy06/amplitudes.rs
similarity index 100%
rename from crates/lox_core/src/bodies/cip/xy/amplitudes.rs
rename to crates/lox_core/src/bodies/cip/xy06/amplitudes.rs
diff --git a/crates/lox_core/src/bodies/cip/xy/luni_solar.rs b/crates/lox_core/src/bodies/cip/xy06/luni_solar.rs
similarity index 100%
rename from crates/lox_core/src/bodies/cip/xy/luni_solar.rs
rename to crates/lox_core/src/bodies/cip/xy06/luni_solar.rs
diff --git a/crates/lox_core/src/bodies/cip/xy/planetary.rs b/crates/lox_core/src/bodies/cip/xy06/planetary.rs
similarity index 100%
rename from crates/lox_core/src/bodies/cip/xy/planetary.rs
rename to crates/lox_core/src/bodies/cip/xy06/planetary.rs
diff --git a/crates/lox_core/src/bodies/cip/xy/polynomial.rs b/crates/lox_core/src/bodies/cip/xy06/polynomial.rs
similarity index 100%
rename from crates/lox_core/src/bodies/cip/xy/polynomial.rs
rename to crates/lox_core/src/bodies/cip/xy06/polynomial.rs