From bc9e1e2a601ed627df50aaa6d04864b0ec691545 Mon Sep 17 00:00:00 2001
From: Malin E <malin.ejdbo@gmail.com>
Date: Mon, 21 Mar 2022 11:50:52 +0100
Subject: [PATCH] Add Hubble trail asset and turn off ISS trail

---
 .../solarsystem/missions/jwst/hubble.asset    | 89 +++++++++++++++++++
 data/profiles/jwst.profile                    |  6 ++
 2 files changed, 95 insertions(+)
 create mode 100644 data/assets/scene/solarsystem/missions/jwst/hubble.asset

diff --git a/data/assets/scene/solarsystem/missions/jwst/hubble.asset b/data/assets/scene/solarsystem/missions/jwst/hubble.asset
new file mode 100644
index 0000000000..89e51683e3
--- /dev/null
+++ b/data/assets/scene/solarsystem/missions/jwst/hubble.asset
@@ -0,0 +1,89 @@
+local transforms = asset.require('scene/solarsystem/planets/earth/transforms')
+local satelliteHelper = asset.require('util/tle_helper')
+
+local url = "https://celestrak.com/satcat/tle.php?CATNR=20580"
+local identifier = "HST"
+local filename = "HST.txt"
+local nodes = {}
+local tle = satelliteHelper.downloadTLEFile(asset, url, identifier, filename)
+
+local initializeAndAddNodes = function()
+  local lineElement = satelliteHelper.makeSingleLineElement(tle, filename)
+  local period = satelliteHelper.getPeriodFromElement(lineElement)
+  local path = tle .. "/" .. filename
+
+  local HubblePosition = {
+    Identifier = "HubblePosition",
+    Parent = transforms.EarthInertial.Identifier,
+    Transform = {
+      Translation = {
+        Type = "TLETranslation",
+        Body = identifier,
+        Observer = transforms.EarthInertial.Identifier,
+        File = path,
+        LineNumber = 1
+      },
+      Rotation = {
+        Type = "SpiceRotation",
+        SourceFrame = "GALACTIC",
+        DestinationFrame = "J2000",
+      }
+    },
+    Tag = { "earth_satellite", "hubble" },
+    GUI = {
+      Name = "Hubble Position",
+      Path = "/Solar System/Planets/Earth/Satellites/Hubble",
+      Hidden = true
+    }
+  }
+
+  local HubbleTrail = {
+    Identifier = "HubbleTrail",
+    Parent = transforms.EarthInertial.Identifier,
+    Renderable = {
+      Type = "RenderableTrailOrbit",
+      Translation = {
+        Type = "TLETranslation",
+        Body = identifier,
+        Observer = transforms.EarthInertial.Identifier,
+        File = path,
+        LineNumber = 1
+      },
+      RenderBinMode = "PostDeferredTransparent",
+      Color = { 0.0, 0.902, 0.6},
+      Fade = 1.5,
+      Period = period,
+      Resolution = 320
+    },
+    Tag = { "earth_satellite", "hubble" },
+    GUI = {
+      Name = "Hubble Trail",
+      Path = "/Solar System/Planets/Earth/Satellites/Hubble"
+    }
+  }
+
+  return { HubblePosition, HubbleTrail }
+end
+
+asset.onInitialize(function ()
+  nodes = initializeAndAddNodes()
+  for _, node in ipairs(nodes) do
+    openspace.addSceneGraphNode(node)
+  end
+end)
+
+asset.onDeinitialize(function ()
+  for i=1, #nodes do
+    openspace.removeSceneGraphNode(nodes[#nodes + 1 - i].Identifier)
+  end
+end)
+
+asset.meta = {
+  Name = "Hubble Space Telescope",
+  Version = "1.0",
+  Description = [[ Position and Trail for Hubble Space Telescope, trail from
+  celestrak.com]],
+  Author = "Dan Tell",
+  URL = "www.calacademy.org",
+  License = "CC-BY"
+}
diff --git a/data/profiles/jwst.profile b/data/profiles/jwst.profile
index d10e2ae1df..2becc75193 100644
--- a/data/profiles/jwst.profile
+++ b/data/profiles/jwst.profile
@@ -84,6 +84,7 @@
     "scene/solarsystem/missions/jwst/jwst",
     "scene/solarsystem/missions/jwst/trail",
     "scene/solarsystem/missions/jwst/hudf",
+    "scene/solarsystem/missions/jwst/hubble",
     "scene/solarsystem/missions/jwst/timelapse",
     "scene/solarsystem/missions/jwst/toggle_trail",
     "scene/digitaluniverse/hdf"
@@ -308,6 +309,11 @@
       "name": "Scene.Earth.Renderable.Layers.ColorLayers.ESRI_VIIRS_Combo.Enabled",
       "type": "setPropertyValueSingle",
       "value": "false"
+    },
+    {
+      "name": "Scene.ISS_trail.Renderable.Enabled",
+      "type": "setPropertyValueSingle",
+      "value": "false"
     }
   ],
   "time": {