Celestia Forums

I'm working up a .cel script and .xyzv files portraying a possible CEV/Orion mission to asteroid 1999 AO10 in 2025/2026. Unfortunately, there appears to be no Constellation Program hardware available for download as a .3ds file for Celestia to render during the mission. I'm currently using the gener...

Microsoft to the rescue! I used Word to save the original .xyzv file with LF-only record termination, and apollo11fr registers with Celestia OK. I still can't say why my .xyz files register OK with CR-only record termination, but I appear to have a .xyzv workaround under Mac OS.

I just tried appending a space to all the Z-velocity components, as the CR byte does immediately follow them in the original .xyzv file. That failed to clear the problem. If pointed at the pertinent Celestia code, I'd be happy to try diagnosing what's going on.

From what you've given me, Seldon, my problem is definitely confined to the format of .xyzv files created on my computer. The records you supplied in your last posting work when copied and pasted into my .xyzv file. If I use records created on my computer, apollo11fr fails to register. Is there some...

Thanks again, Seldon. Appended is what the Console showed as my .ssc file was loading with the SampledTrajectory command enabled. Looks like I'm missing an "orbit" in my timeline, but I don't know what that means in terms of syntax. Does this lead to a diagnosis? Loading solar system catal...

Thanks for the suggestion, Seldon. Using the Cassini script example, which runs beautifully BTW, I constructed the appended .ssc file. It registers the apollo11fr spacecraft successfully. When I disable the SampledOrbit command and enable the SampledTrajectory command, however, the spacecraft fails ...

I'm using Celestia v1.6.0 with Mac OS X v10.4.11. I have a .cel script running with a .ssc file referencing a .xyz file using the statement SampledOrbit "apollo11fr.xyz". When I replace this statement with SampledTrajectory { Source "apollo11fr.xyzv" }, the spacecraft I'm trying ...

Does this add-on require a specific version of Celestia? I have unpacked your ZIP archive in the extras directory of my Celestia 1.3.2 installation under Linux. When I run the apollo11fr.cel script, I don't see neither the spacecraft, nor the Moon or Earth while the script proceedes and displays it...

Frank- Yes, an Apollo 13 reconstruction is a possibility, but it would be a challenge in at least 2 respects. First, at the time of its cryo tank explosion, Apollo 13 wasn't on a free return trajectory at all. The departure from free return had been an intentional consequence of a Hybrid Course Inse...

To my knowledge, the most accurate "as-flown" Apollo mission trajectory data available today are published in Richard W. Orloff's "Apollo by the Numbers: A Statistical Reference" (NASA SP-2000-4029). Using these data, I've reconstructed the Apollo 11 as-flown trajectory following Trans-Lunar Injecti...