updated SHMS DC calibration parameters

PARAM/SHMS/DC/pdc_tracking.param

@@ -14,8 +14,21 @@ pdc_tdc_max_win = 55000, 55000, 55000, 55000, 55000, 55000  ; TODO - wide limits
 pdc_tdc_time_per_channel = -0.10
 
 ; Zero time correction for each plane in ns that is added to TDC time.
-pdc_plane_time_zero = 1283.82, 1283.30, 1286.73, 1283.56, 1282.57, 1284.30
-                      1283.94, 1283.34, 1286.95, 1286.46, 1286.37, 1284.47
+
+;initial t0 offsets used in shms run 469 for DC Calibration
+;pdc_plane_time_zero = 1280.0,1280.0,1280.0,1280.0,1280.0,1280.0
+;                      1280.0,1280.0,1280.0,1280.0,1280.0,1280.0
+
+;first order t0 correction produced by the calibration script
+;pdc_plane_time_zero = 1297.17,1297.19,1293.81,1298.11,1293.95,1297.88
+;                      1293.59,1292.74,1294.42,1293.14,1296.85,1293.09
+
+;2nd order t0 fine tuning produced by the calibration script
+pdc_plane_time_zero = 1296.17,1296.19,1292.81,1297.11,1292.95,1296.88
+                      1292.59,1291.74,1293.42,1292.14,1295.85,1292.09 
+
+
+
 
 ; For wire velocity corrections.
 pdc_wire_velocity = 13.0  ; TODO