diff --git a/src/modules/symba_classes.f90 b/src/modules/symba_classes.f90
index 81665f049..e95c28a73 100644
--- a/src/modules/symba_classes.f90
+++ b/src/modules/symba_classes.f90
@@ -26,11 +26,12 @@ module symba_classes
    real(DP),     private, parameter :: RSHELL  = 0.48075_DP
 
    type, extends(swiftest_parameters) :: symba_parameters
-      real(DP)                                :: GMTINY         = -1.0_DP !! Smallest G*mass that is fully gravitating
-      real(DP)                                :: min_GMfrag     = -1.0_DP !! Smallest G*mass that can be produced in a fragmentation event
-      integer(I4B), dimension(:), allocatable :: seed                     !! Random seeds
-      logical                                 :: lfragmentation = .false. !! Do fragmentation modeling instead of simple merger.
-      character(STRMAX)                       :: encounter_save = "NONE"  !! Indicate how encounter and/or fragmentation data should be saved
+      real(DP)                                :: GMTINY             = -1.0_DP !! Smallest G*mass that is fully gravitating
+      real(DP)                                :: min_GMfrag         = -1.0_DP !! Smallest G*mass that can be produced in a fragmentation event
+      integer(I4B), dimension(:), allocatable :: seed                         !! Random seeds
+      logical                                 :: lfragmentation     = .false. !! Do fragmentation modeling instead of simple merger.
+      character(STRMAX)                       :: encounter_save     = "NONE"  !! Indicate if and how encounter data should be saved
+      character(STRMAX)                       :: fragmentation_save = "NONE"  !! Indicate if and how fragmentation data should be saved
    contains
       procedure :: reader => symba_io_param_reader
       procedure :: writer => symba_io_param_writer
@@ -428,7 +429,7 @@ end subroutine symba_io_encounter_initialize_output
       module subroutine symba_io_encounter_write_frame(self, nc, param)
          implicit none
          class(symba_encounter_snapshot),      intent(in)    :: self   !! Swiftest encounter structure
-         class(symba_io_encounter_parameters), intent(inout) :: nc     !! Parameters used to identify a particular encounter io NetCDF dataset
+         class(symba_io_encounter_parameters), intent(inout) :: nc   !! Parameters used to identify a particular encounter io NetCDF dataset
          class(swiftest_parameters),           intent(inout) :: param  !! Current run configuration parameters
       end subroutine symba_io_encounter_write_frame
 
diff --git a/src/symba/symba_io.f90 b/src/symba/symba_io.f90
index 4cb557162..59553a11b 100644
--- a/src/symba/symba_io.f90
+++ b/src/symba/symba_io.f90
@@ -235,6 +235,9 @@ module subroutine symba_io_param_reader(self, unit, iotype, v_list, iostat, ioms
                case ("ENCOUNTER_SAVE")
                   call io_toupper(param_value)
                   read(param_value, *) param%encounter_save
+               case ("FRAGMENTATION_SAVE")
+                  call io_toupper(param_value)
+                  read(param_value, *) param%fragmentation_save
                case("SEED")
                   read(param_value, *) nseeds_from_file
                   ! Because the number of seeds can vary between compilers/systems, we need to make sure we can handle cases in which the input file has a different
@@ -285,9 +288,16 @@ module subroutine symba_io_param_reader(self, unit, iotype, v_list, iostat, ioms
          ! All reporting of collision information in SyMBA (including mergers) is now recorded in the Fraggle logfile
          call io_log_start(param, FRAGGLE_LOG_OUT, "Fraggle logfile")
 
-         if ((param%encounter_save /= "NONE") .and. (param%encounter_save /= "ALL") .and. (param%encounter_save /= "FRAGMENTATION")) then
+         if ((param%encounter_save /= "NONE") .and. (param%encounter_save /= "TRAJECTORY") .and. (param%encounter_save /= "CLOSEST")) then
             write(iomsg,*) 'Invalid encounter_save parameter: ',trim(adjustl(param%out_type))
-            write(iomsg,*) 'Valid options are NONE, ALL, or FRAGMENTATION'
+            write(iomsg,*) 'Valid options are NONE, TRAJECTORY, or CLOSEST'
+            iostat = -1
+            return
+         end if
+
+         if ((param%fragmentation_save /= "NONE") .and. (param%fragmentation_save /= "TRAJECTORY") .and. (param%fragmentation_save /= "CLOSEST")) then
+            write(iomsg,*) 'Invalid fragmentation_save parameter: ',trim(adjustl(param%out_type))
+            write(iomsg,*) 'Valid options are NONE, TRAJECTORY, or CLOSEST'
             iostat = -1
             return
          end if