I love this mod and quickly created a controllable ore detector with a camera so that my main carrier ship can scan for ores. Issue was trying to recall which asteroid I was looking at. I added this little bit of code below line 218 of the RadioSpectrometryTSS.cs file... it will give you the GPS coordinates of the asteroid you're looking at in the CustomData of the display panel.

Sandbox.ModAPI.IMyTextPanel txtPanel = m_ScriptBlock as Sandbox.ModAPI.IMyTextPanel;
if (txtPanel != null)
{
try
{
Vector3D position = scancomp.m_lastMap.PositionLeftBottomCorner;
var half = scancomp.m_lastMap.SizeInMetresHalf;
txtPanel.CustomData = "GPS:Asteroid:" + (position.X+half.X).ToString() + ":" +(position.Y+half.Y).ToString() + ":" +(position.Z+half.Z).ToString() + ":#FFFFFFFF:";
}
catch (Exception ex)
{
txtPanel.CustomData = ex.Message;
}
}

Probably a cleaner way to implement but I didn't have a good IDE set up at this point.

Here are all the using statements as I think i had to add some of the vrage libs

using Sandbox.Game.GameSystems.TextSurfaceScripts;
using Sandbox.ModAPI;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using VRage.Game.GUI.TextPanel;
using VRage.Game.ModAPI.Ingame;
using VRage.ModAPI;
using VRageMath;
using IMyCubeBlock = VRage.Game.ModAPI.IMyCubeBlock;