diff --git a/examples/helio_neptune_pluto/param.in b/examples/helio_neptune_pluto/param.in
new file mode 100644
index 000000000..27c0f31b2
--- /dev/null
+++ b/examples/helio_neptune_pluto/param.in
@@ -0,0 +1,33 @@
+! VERSION        Swiftest parameter input from file param.in
+T0               0.0
+TSTOP            100000.0
+DT               5.0
+ISTEP_OUT        20
+ISTEP_DUMP       20
+OUT_FORM         XVEL
+OUT_TYPE         NETCDF_DOUBLE
+OUT_STAT         REPLACE
+IN_TYPE          NETCDF_DOUBLE
+BIN_OUT          bin.nc
+CHK_QMIN         0.004650467260962157
+CHK_RMIN         0.004650467260962157
+CHK_RMAX         1000.0
+CHK_EJECT        1000.0
+CHK_QMIN_COORD   HELIO
+CHK_QMIN_RANGE   0.004650467260962157 1000.0
+MU2KG            1.988409870698051e+30
+TU2S             31557600.0
+DU2M             149597870700.0
+IN_FORM          XV
+NC_IN            init_cond.nc
+EXTRA_FORCE      NO
+BIG_DISCARD      NO
+CHK_CLOSE        NO
+RHILL_PRESENT    NO
+FRAGMENTATION    NO
+ROTATION         NO
+TIDES            NO
+ENERGY           YES
+GR               NO
+INTERACTION_LOOPS TRIANGULAR
+ENCOUNTER_CHECK  TRIANGULAR