Commit: b637714bea26a3550c4f0ae6bb5f68853c9a93a7
Parent: 26bcf55822737f24df800d73055d3ad4865e114b
Author: Vi Grey
Date: 2024-05-29 14:06 UTC
Summary: Add solarTimeSecondsOffset and rfc3339 values

 README.txt    |  6 ++++--
 src/syzygy.go | 45 ++++++++++++++++++++++++++-------------------
 2 files changed, 30 insertions(+), 21 deletions(-)


diff --git a/README.txt b/README.txt
index 8efd3e9..381e26d 100644
--- a/README.txt
+++ b/README.txt
@@ -118,7 +118,7 @@ The above command will provide the following output
   "equationOfTime": {
     "eccentricity": -1.8414647539088742,
     "obliquity": 2.08068776123484,
-    "secondsOffset": 57.41352175823174
+    "secondsOffset": 57.41352175823174,
   },
   "eclipse": {
     "local": false,
@@ -128,6 +128,8 @@ The above command will provide the following output
   "sunEclipticLongitude": 29.798842962357107,
   "moonEclipticLongitude": 29.308224392458214,
   "sunEarthMoonAngle": 0.6551216488634518,
-  "time": 1681960707.141592
+  "solarTimeSecondsOffset": -21034.708942241767,
+  "time": 1681960707.141592,
+  "rfc3339": "2023-04-20T03:18:27.141592Z"
 }
 ```
diff --git a/src/syzygy.go b/src/syzygy.go
index 678f0f0..763f460 100644
--- a/src/syzygy.go
+++ b/src/syzygy.go
@@ -463,25 +463,27 @@ var (
 )
 
 type Syzygy struct {
-	MoonIllumination      float64        `json:"moonIllumination"`
-	MoonPhase             float64        `json:"moonPhase"`
-	SunAngle              float64        `json:"sunAngle"`
-	MoonAngle             float64        `json:"moonAngle"`
-	SunVisible            bool           `json:"sunVisible"`
-	MoonVisible           bool           `json:"moonVisible"`
-	SunGeodeticLocation   LLA            `json:"sunGeodeticLocation"`
-	MoonGeodeticLocation  LLA            `json:"moonGeodeticLocation"`
-	EarthGeodeticLocation LLA            `json:"earthGeodeticLocation"`
-	SunECEF               XYZ            `json:"sunECEF"`
-	MoonECEF              XYZ            `json:"moonECEF"`
-	EarthECEF             XYZ            `json:"earthECEF"`
-	EoT                   EquationOfTime `json:"equationOfTime"`
-	Ecl                   Eclipse        `json:"eclipse"`
-	SunEarthPhase         float64        `json:"sunEarthPhase"`
-	SunEclipticLongitude  float64        `json:"sunEclipticLongitude"`
-	MoonEclipticLongitude float64        `json:"moonEclipticLongitude"`
-	SunEarthMoonAngle     float64        `json:"sunEarthMoonAngle"`
-	Time                  float64        `json:"time"`
+	MoonIllumination       float64        `json:"moonIllumination"`
+	MoonPhase              float64        `json:"moonPhase"`
+	SunAngle               float64        `json:"sunAngle"`
+	MoonAngle              float64        `json:"moonAngle"`
+	SunVisible             bool           `json:"sunVisible"`
+	MoonVisible            bool           `json:"moonVisible"`
+	SunGeodeticLocation    LLA            `json:"sunGeodeticLocation"`
+	MoonGeodeticLocation   LLA            `json:"moonGeodeticLocation"`
+	EarthGeodeticLocation  LLA            `json:"earthGeodeticLocation"`
+	SunECEF                XYZ            `json:"sunECEF"`
+	MoonECEF               XYZ            `json:"moonECEF"`
+	EarthECEF              XYZ            `json:"earthECEF"`
+	EoT                    EquationOfTime `json:"equationOfTime"`
+	Ecl                    Eclipse        `json:"eclipse"`
+	SunEarthPhase          float64        `json:"sunEarthPhase"`
+	SunEclipticLongitude   float64        `json:"sunEclipticLongitude"`
+	MoonEclipticLongitude  float64        `json:"moonEclipticLongitude"`
+	SunEarthMoonAngle      float64        `json:"sunEarthMoonAngle"`
+	SolarTimeSecondsOffset float64        `json:"solarTimeSecondsOffset"`
+	Time                   float64        `json:"time"`
+	RFC3339                string         `json:"rfc3339"`
 }
 
 type XYZ struct {
@@ -1080,7 +1082,12 @@ func main() {
 	s.SunEclipticLongitude = sunApparentLon
 	s.MoonEclipticLongitude = moonApparentLon
 	s.SunEarthMoonAngle = radiansToDegrees(arcl)
+	s.SolarTimeSecondsOffset = earthLLA.Longitude*240 + eot.SecondsOffset
 	s.Time = specifiedTime
+	specifiedTimeSeconds, specifiedTimeNano := math.Modf(specifiedTime)
+	sTime := time.Unix(int64(specifiedTimeSeconds),
+		int64(specifiedTimeNano*1000000000)).UTC()
+	s.RFC3339 = sTime.Format("2006-01-02T15:04:05.999999Z")
 	lunarEclipsePossible := moonPhase > 90 && moonPhase < 270
 	var ecl Eclipse
 	if lunarEclipsePossible {