Use new JWST kernel with launch data

* Add a new trail for the first 30 min of launch relative to EarthIAU
2026-03-09 14:58:37 -05:00 · 2022-05-05 09:31:38 +02:00
parent 8f80005f11
commit eda0d0b6a0
4 changed files with 127 additions and 40 deletions
--- a/data/assets/scene/solarsystem/missions/jwst/jwst.asset
+++ b/data/assets/scene/solarsystem/missions/jwst/jwst.asset
@@ -17,13 +17,16 @@ local band = asset.syncedResource({
  Version = 1
 })

+local launchTime = "2021 DEC 25 12:20:00"
+local endTime = "2024 JAN 22 00:00:00"
+
 local JWSTBand = {
  Identifier = "JWSTBand",
  Parent = transforms.JWSTPosition.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2021 DEC 25 12:50:00",
-    End = "2024 JAN 22"
+    Start = launchTime,
+    End = endTime
  },
  Transform = {
    Rotation = {
@@ -59,8 +62,8 @@ local JWSTModel = {
  Parent = transforms.JWSTRotation.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2021 DEC 25 12:50:00",
-    End = "2024 JAN 22"
+    Start = launchTime,
+    End = endTime
  },
  Renderable = {
    Type = "RenderableModel",
@@ -91,8 +94,8 @@ local JWSTFov = {
  Parent = JWSTModel.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2021 DEC 25 12:50:00",
-    End = "2024 JAN 22"
+    Start = launchTime,
+    End = endTime
  },
  Renderable = {
    Type = "RenderablePrism",
@@ -124,8 +127,8 @@ local JWSTLabel = {
  Parent = transforms.JWSTPosition.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2021 DEC 25 12:50:00",
-    End = "2024 JAN 22"
+    Start = launchTime,
+    End = endTime
  },
  Renderable = {
    Type = "RenderableLabels",
--- a/data/assets/scene/solarsystem/missions/jwst/trail.asset
+++ b/data/assets/scene/solarsystem/missions/jwst/trail.asset
@@ -14,35 +14,76 @@ local kernels = asset.syncedResource({
  Name = "JWST Kernel",
  Type = "HttpSynchronization",
  Identifier = "jwst_kernels",
-  Version = 1
+  Version = 2
 })

-- Trail of JWST relative the Earth for the first month after launch
-- Makes histroy of trail to stay at Earth, that a trail relative to L2 won't
+local launchTime = "2021 DEC 25 12:20:00"
+local detachTime = "2021 DEC 25 12:50:00"
+local L2orbitInsertionTime = "2022 JAN 25 00:00:00"
+local endTime = "2024 JAN 22 00:00:00"
+
+-- Trail of JWST relative the Earth Inertial for the first 30 minutes after launch
+-- Makes histroy of trail to stay at launch site, that a trail relative to Earth Center won't
 local JWSTTrailLaunch = {
  Identifier = "JWSTTrailLaunch",
-  Parent = earthTransforms.EarthCenter.Identifier,
+  Parent = earthTransforms.EarthIAU.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2021 DEC 25 12:50:00",
-    End = "2022 JAN 25"
+    Start = launchTime,
+    End = detachTime
  },
  Renderable = {
    Type = "RenderableTrailTrajectory",
    Translation = {
-      Type = "HorizonsTranslation",
-      HorizonsTextFile = horizons .. "horizons_jwst_launch.hrz",
-    },
+			Type = 'SpiceTranslation',
+			Target = '170', -- JWST
+			Observer = 'EARTH',
+			Frame = 'IAU_EARTH',
+			Kernels = { kernels .. "webb.bsp" }
+		},
    Color = { 0.9, 0.9, 0.0 },
-    StartTime = "2021 DEC 25 12:50:00",
-    EndTime = "2022 JAN 25",
+    StartTime = launchTime,
+    EndTime = detachTime,
    SampleInterval = 60 -- Sample rate of once per minute
  },
  GUI = {
    Name = "JWST Launch Trail",
    Path = "/Solar System/Missions/JWST/Trails",
    Description = [[
-      James Webb Space Telescope Launch Trail relative to Earth.
+      James Webb Space Telescope Launch Trail relative to Earth IAU.
+    ]],
+  }
+}
+
+-- Trail of JWST relative the Earth for the first month after detatching from the rocket
+-- Makes histroy of trail to stay at Earth, that a trail relative to L2 won't
+local JWSTTrailCruise = {
+  Identifier = "JWSTTrailCruise",
+  Parent = earthTransforms.EarthCenter.Identifier,
+  TimeFrame = {
+    Type = "TimeFrameInterval",
+    Start = detachTime,
+    End = L2orbitInsertionTime
+  },
+  Renderable = {
+    Type = "RenderableTrailTrajectory",
+    Translation = {
+			Type = 'SpiceTranslation',
+			Target = '170', -- JWST
+			Observer = 'EARTH',
+			Frame = 'GALACTIC',
+			Kernels = { kernels .. "webb.bsp" }
+		},
+    Color = { 0.9, 0.9, 0.0 },
+    StartTime = detachTime,
+    EndTime = L2orbitInsertionTime,
+    SampleInterval = 60 -- Sample rate of once per minute
+  },
+  GUI = {
+    Name = "JWST Cruise Trail",
+    Path = "/Solar System/Missions/JWST/Trails",
+    Description = [[
+      James Webb Space Telescope Cruise Trail relative to Earth.
    ]],
  }
 }
@@ -54,15 +95,18 @@ local JWSTTrailOrbit = {
  Parent = transforms.L2.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2022 JAN 25",
-    End = "2024 JAN 22"
+    Start = L2orbitInsertionTime,
+    End = endTime
  },
  Renderable = {
    Type = "RenderableTrailOrbit",
    Translation = {
-      Type = "HorizonsTranslation",
-      HorizonsTextFile = horizons .. "horizons_jwst_orbit.hrz",
-    },
+			Type = 'SpiceTranslation',
+			Target = '170', -- JWST
+			Observer = '392', -- L2
+			Frame = 'GALACTIC',
+			Kernels = { kernels .. "webb.bsp" }
+		},
    Color = { 0.9, 0.9, 0.0 },
    Period = 182.621099, -- About 6 months
    Resolution = 183 -- About a sample rate of once per day
@@ -81,15 +125,18 @@ local JWSTSunTrail = {
  Parent = sunTransforms.SolarSystemBarycenter.Identifier,
  TimeFrame = {
    Type = "TimeFrameInterval",
-    Start = "2022 JAN 25",
-    End = "2024 JAN 22"
+    Start = L2orbitInsertionTime,
+    End = endTime
  },
  Renderable = {
    Type = "RenderableTrailOrbit",
    Translation = {
-      Type = "HorizonsTranslation",
-      HorizonsTextFile = horizons .. "horizons_jwst_sun.hrz",
-    },
+			Type = 'SpiceTranslation',
+			Target = '170', -- JWST
+			Observer = 'SSB',
+			Frame = 'GALACTIC',
+			Kernels = { kernels .. "webb.bsp" }
+		},
    Color = { 0.0, 0.9, 0.9 },
    Period = 365.242,
    Resolution = 365 -- About a sample rate of once per day
@@ -105,6 +152,7 @@ local JWSTSunTrail = {

 asset.onInitialize(function()
  openspace.addSceneGraphNode(JWSTTrailLaunch)
+  openspace.addSceneGraphNode(JWSTTrailCruise)
  openspace.addSceneGraphNode(JWSTTrailOrbit)
  openspace.addSceneGraphNode(JWSTSunTrail)
 end)
@@ -112,10 +160,12 @@ end)
 asset.onDeinitialize(function()
  openspace.removeSceneGraphNode(JWSTSunTrail)
  openspace.removeSceneGraphNode(JWSTTrailOrbit)
+  openspace.removeSceneGraphNode(JWSTTrailCruise)
  openspace.removeSceneGraphNode(JWSTTrailLaunch)
 end)

 asset.export(JWSTTrailLaunch)
+asset.export(JWSTTrailCruise)
 asset.export(JWSTTrailOrbit)
 asset.export(JWSTSunTrail)

--- a/data/assets/scene/solarsystem/missions/jwst/transforms.asset
+++ b/data/assets/scene/solarsystem/missions/jwst/transforms.asset
@@ -9,21 +9,45 @@ local horizons = asset.syncedResource({
  Version = 3
 })

+local kernels = asset.syncedResource({
+  Name = "JWST Kernel",
+  Type = "HttpSynchronization",
+  Identifier = "jwst_kernels",
+  Version = 2
+})
+
+local launchTime = "2021 DEC 25 12:20:00"
+local detachTime = "2021 DEC 25 12:50:00"
+local L2orbitInsertionTime = "2022 JAN 25 00:00:00"
+
 local JWSTPosition = {
  Identifier = "JWSTPosition",
-  Parent = earthTransforms.EarthCenter.Identifier,
+  Parent = earthTransforms.EarthIAU.Identifier,
  Transform = {
    Translation = {
      Type = "TimelineTranslation",
      ShouldInterpolate = false,
      Keyframes = {
-        ["2021 DEC 25 12:50:00"] = {
-          Type = "HorizonsTranslation",
-          HorizonsTextFile = horizons .. "horizons_jwst_launch.hrz",
+        [launchTime] = {
+          Type = 'SpiceTranslation',
+          Target = '170', -- JWST
+          Observer = 'EARTH',
+          Frame = 'IAU_EARTH',
+          Kernels = { kernels .. "webb.bsp" }
        },
-        ["2022 JAN 25 00:00:00"] = {
-          Type = "HorizonsTranslation",
-          HorizonsTextFile = horizons .. "horizons_jwst_orbit.hrz",
+        [detachTime] = {
+          Type = 'SpiceTranslation',
+          Target = '170', -- JWST
+          Observer = 'EARTH',
+          Frame = 'GALACTIC',
+          Kernels = { kernels .. "webb.bsp" }
+        },
+        [L2orbitInsertionTime] = {
+          Type = 'SpiceTranslation',
+          Target = '170', -- JWST
+          Observer = '392', -- L2
+          Frame = 'GALACTIC',
+          Kernels = { kernels .. "webb.bsp" }
        }
      }
    },
@@ -64,7 +88,14 @@ local JWSTRotation = {
 -- Reparent the JWSTPosition node when the data changes at 25 Jan 2022
 asset.onInitialize(function()
  openspace.scriptScheduler.loadScheduledScript(
-    "2022 JAN 25 00:00:00",
+    detachTime,
+    [[openspace.setParent("JWSTPosition", "EarthCenter")]],
+    [[openspace.setParent("JWSTPosition", "EarthIAU")]],
+    "",
+    1 -- Not default group, never clear this script
+  )
+  openspace.scriptScheduler.loadScheduledScript(
+    L2orbitInsertionTime,
    [[openspace.setParent("JWSTPosition", "L2")]],
    [[openspace.setParent("JWSTPosition", "EarthCenter")]],
    "",
@@ -72,16 +103,19 @@ asset.onInitialize(function()
  )

  openspace.addSceneGraphNode(JWSTPosition)
+  openspace.addSceneGraphNode(BufferRotation)
  openspace.addSceneGraphNode(JWSTRotation)
 end)

 asset.onDeinitialize(function()
  openspace.removeSceneGraphNode(JWSTRotation)
+  openspace.removeSceneGraphNode(BufferRotation)
  openspace.removeSceneGraphNode(JWSTPosition)
  openspace.scriptScheduler.clear(1)
 end)

 asset.export(JWSTPosition)
+asset.export(BufferRotation)
 asset.export(JWSTRotation)


--- a/data/profiles/jwst.profile
+++ b/data/profiles/jwst.profile
@@ -46,7 +46,7 @@
      "identifier": "profile.set.jwst_launch",
      "is_local": false,
      "name": "Set to JWST launch time",
-      "script": "openspace.time.setDeltaTime(1); openspace.time.setTime('2021-12-25T12:50:00');"
+      "script": "openspace.time.setDeltaTime(1); openspace.time.setTime('2021-12-25T12:20:01');"
    },
    {
      "documentation": "Toggle JWST trail relative to the Sun",
@@ -319,7 +319,7 @@
  ],
  "time": {
    "type": "absolute",
-    "value": "2021-12-25T12:50:00"
+    "value": "2021-12-25T12:20:01"
  },
  "version": {
    "major": 1,