commented the epoch

1 files changed, 6 insertions, 1 deletions

diff --git a/TLE.go b/TLE.go
index 4c57928..950e9c0 100644
--- a/TLE.go
+++ b/TLE.go
@@ -54,8 +54,13 @@ type InternationalDesignator struct {
 	Launchpiece rune `json:"launchpiece"`
 }
 
+// Epoch defines a moment in time
 type Epoch struct {
-	Year        int8    `json:"year"`
+
+	// Last two digits of the year
+	Year int8 `json:"year"`
+
+	// day of the year and fractional portion of the day
 	Dayfraction float64 `json:"dayfraction"`
 }