Unable to draw the given inter-satellite path.

I wrote a Python script and got a path selection at a certain point as ['Satellite_185', 'Satellite_113', 'Satellite_162', 'Satellite_108', 'Satellite_87', 'Satellite_68', 'Satellite_305', 'Satellite_335', 'Satellite_384']. Then I wrote the following MATLAB code, but it gets stuck at the simulation scene step. I suspect it's because of the time issue, but I can't fix it.

% Create Satellite Scenario  
startTime = datetime(2021,12,10,18,27,57); % 10 December 2021, 6:27:57 PM UTC  
stopTime = startTime + hours(3);           % 10 December 2021, 9:27:57 PM UTC  
sampleTime = 60;                           % Seconds  
sc = satelliteScenario(startTime,stopTime,sampleTime,"AutoSimulate",false);  
  
% Load the entire constellation, but we'll only use the specified relay satellites  
satellites = satellite(sc,"largeConstellation2.tle");  
  
% Known relay satellite names or identifiers (assuming you have them)  
% If you only have indices, you'll need to map them to satellite objects somehow  
% Here we assume you have the satellite objects directly  

% relaySats = {...}; % This should be filled with the actual satellite objects  
% Example: relaySats = {satellites(10), satellites(20), satellites(30)};  
% But since you likely have names or other identifiers, you'll need to find them  
  
% Or, if you have indices into the 'satellites' array  
relaySatsIndices = [185, 113, 162, 108, 87, 68, 305, 335, 384]; % Example indices  
relaySats = satellites(relaySatsIndices);  
  
% Add Ground Stations  
gsSource = groundStation(sc,42.3001,-71.3504, "Name","Source Ground Station");  
gsTarget = groundStation(sc,17.4351,78.3824, "Name","Target Ground Station");  
  
% Build the path using the known relay satellite sequence  
pathNodes = {gsSource, relaySats, gsTarget};  
  
% Visualize Path  
sc.AutoSimulate = true;  
ac = access(pathNodes{:});  
ac.LineColor = "red";  
  
% Determine Intervals When Calculated Path Can Be Used (if needed)  
% intvls = accessIntervals(ac); % Uncomment this line if you need the access intervals  
  
% Create satellite scenario viewer  
v = satelliteScenarioViewer(sc,"ShowDetails",false);  
% Note: Setting MarkerSize directly on the satellites object may not work as expected.  
% Instead, adjust the visualization properties in the viewer or use a loop to set markers.  
  
% Play the scenario  
play(sc);

The code above references part of the code from this website:https://www.mathworks.com/help/satcom/ug/multihop-path-select-through-sat-constellation.html

This picture is my stuck interface after running in matlab.

[Govind KM]

@sun,

Does the example given in the link you provided execute properly for you? Additionally, Is the "largeConstellation2.tle" file used in your code the same as the "largeConstellation.tle" file in the example you have linked?

[sun]

@Gkm4430,

I think the example in the link is suitable for me. We just need to change the process of satellite selection to a certain route. In fact, I have satellite routing at multiple times, but at present I just want to realize the routing display at the beginning. Attached is the content in largeConstellation2.tle

[Umar]

@Sun,You did a very good job implementing the code. To help resolve your problem related ,” gets stuck at the simulation scene step ”, please run the code step by step to identify the specific point where the simulation gets stuck and tell me that specific point of error message. The reason behind it that I am a poor guy who is living example life of Jesus who helped everyone, made difference in people lives, made sacrifices. I cannot afford Satellite Communications Toolbox and satelliteScenario requires this toolbox. Hope, you understand.

[Govind KM]

@sun,

I am able to reproduce the issue at my end. The code executes properly when other .tle files are used to load the satellite data, such as the .tle file in your linked example. This indicates that your .tle file might contain invalid data, leading to the code stalling at the simulation phase. Kindly review the data in your .tle file for any errors.

[sun]

@Govind KM，

Thank you very much. Your comments reminded me that my code can run successfully.