Improved session time handling

sdb.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"time"
 )
 
 type IridiumSDB struct {
@@ -22,7 +23,11 @@ type MOHeader struct {
 	Status       byte
 	MOMSN        uint16
 	MTMSN        uint16
-	SessionTime  uint32
+	TimeSession  uint32
+}
+
+func (h MOHeader) SessionTime() time.Time {
+	return time.Unix(int64(h.TimeSession), 0)
 }
 
 func (h MOHeader) StatusString() string {
@@ -193,8 +198,8 @@ func parseSDB(raw []byte) error {
 				v.MOMSN)
 			fmt.Printf("\tMO Header MTMSN: %d\n",
 				v.MTMSN)
-			fmt.Printf("\tMO Header Session Time: %d\n",
-				v.SessionTime)
+			fmt.Printf("\tMO Header Session Time: %s\n",
+				v.SessionTime().String())
 
 		case MOPayload:
 			fmt.Printf("\tMO Payload IEI: %d\n",