Changed comments. Added calculation for epoch time in ns

matlab/TCV_IMAS/tcv_get_ids_dataset_description.m

@@ -64,11 +64,11 @@ ids_dataset_description.pulse=shot;
 
 % Attempt to fill information about pulse time
 % FIXME: How to get pulse_time_end? Simply = pulse_time_begin + X seconds?
-[pulse_time_begin,pulse_time_begin_epoch]= ...
+[pulse_time_begin,pulse_time_begin_epoch,pulse_time_begin_epoch_ns]= ...
     get_mds_node_info('\VSYSTEM:TIMERS.VALUES',shot);
 ids_dataset_description.pulse_time_begin=pulse_time_begin;
 ids_dataset_description.pulse_time_begin_epoch.seconds=pulse_time_begin_epoch;
-ids_dataset_description.pulse_time_begin_epoch.nanoseconds=pulse_time_begin_epoch.*1e9;
+ids_dataset_description.pulse_time_begin_epoch.nanoseconds=pulse_time_begin_epoch_ns;
 % ids_dataset_description.pulse_time_end_epoch.seconds=
 % ids_dataset_description.pulse_time_end_epoch.nanoseconds=
 % ids_dataset_description.pulse_processing_time_begin=node_time

matlab/get_mds_node_info.m

-function [node_time, node_epoch_time, node_owner] = get_mds_node_info(node_str, shot)
-%GET_MDS_NODE_INFO Retrieves insertion time and owner of a node in MDSplus
+function [node_time, node_epoch_time, node_epoch_time_ns, node_owner] = get_mds_node_info(node_str, shot)
+% [node_time, node_epoch_time, node_owner] = 
+%   get_mds_node_info(node_str, shot)
+%   
+%   Retrieves insertion time and owner of a node in MDSplus
 %
-%   [node_time, node_owner] = GET_MDS_NODE_INFO(node_str, shot)
 %   Inputs:
-%       node_str - String path to the MDSplus node
+%       node_str - String, path to the MDSplus node
 %                      (e.g. '\\RESULTS::CXRS_001:TI')
-%       shot     - Shot number to open
+%       shot     - Numeric, Shot number to open
 %
 %   Outputs:
-%       node_time  - Time the node data was inserted
-%       node_owner - (Optional) Owner info of the node
+%       node_time  - Numeric, Time the node data was inserted
+%       node_owner - String, (Optional) Owner info of the node
+%
+% Date: 20/09/24
+% Author: L. Simons
 
     % Open the shot
     mdsopen('tcv_shot',shot);
@@ -25,7 +30,7 @@ function [node_time, node_epoch_time, node_owner] = get_mds_node_info(node_str,
         node_time = [time_str 'Z'];
         % Convert to Unix Epoch time (seconds since Jan 1, 1970 UTC)
         node_epoch_time = posixtime(datetime(mds_node_time, 'InputFormat', 'dd-MMM-yyyy HH:mm:ss.SSSSSS', 'TimeZone', 'UTC'));
-        
+        node_epoch_time_ns=mod(second(dt),1)*1e9;
 
         % Owner
         tdi_owner = sprintf('owner_ascii("%s")', node_str);