diff --git a/src/pint/models/astrometry.py b/src/pint/models/astrometry.py
index 7a37e1203..2d739a13d 100644
--- a/src/pint/models/astrometry.py
+++ b/src/pint/models/astrometry.py
@@ -449,8 +449,7 @@ def ssb_to_psb_xyz_ICRS(self, epoch=None):
                 self.PMRA.quantity.to_value(u.radian / u.yr)
                 / np.cos(self.DECJ.quantity).value,
                 self.PMDEC.quantity.to_value(u.radian / u.yr),
-                # self.PX.quantity.to_value(u.arcsec),
-                0.0,
+                self.PX.quantity.to_value(u.arcsec),
                 0.0,
                 self.POSEPOCH.quantity.jd1,
                 self.POSEPOCH.quantity.jd2,
@@ -886,8 +885,7 @@ def ssb_to_psb_xyz_ECL(self, epoch=None, ecl=None):
                 lat,
                 pm_lon,
                 pm_lat,
-                # self.PX.quantity.to_value(u.arcsec),
-                0.0,
+                self.PX.quantity.to_value(u.arcsec),
                 0.0,
                 self.POSEPOCH.quantity.jd1,
                 self.POSEPOCH.quantity.jd2,