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Well, I guess, I found it in the doc: Thrust: 2 x 1.6·10^5 N (main engines) Isp: 4·104 m/s (fuel-specific impulse in vacuum) Anyhow, has anyone calculated such values with GMAT and checked it in Orbiter? If I understand correctly, this ISP is in m/sec and in GMAT it is in sec. If I call the...

Hi, I am checking how could I combine mission planning in GMAT with Orbiter. As a simple example, I would like to plan a Hohmann transfer from LEO to a higher orbit. I planned the scenarion in GMAT both with ImpulsiveBurn and FiniteBurn steps. The more realistic is the FiniteBurn based...

I find useful information here in the help doc: orbiter/Html/Main/Script/mtd_vessel.htm Based on that I can ask for relative position: orion = vessel.get_interface('orion') href=oapi.get_objhandle('moon') glob = orion:get_globalpos(href) equ = oapi.global_to_equ(moon,glob) term.out(equ.rad) )...

I am trying to continuously record (and use) the position relative to the Moon in a scenario, where the gravity effect of the Earth and the Sun is not negligible (Distant Retrograde Orbit - DRO). In this situation I can still follow the orbit parameters relative to the Moon and to the Earth on...

Thanks @kuddel. The existing docs and the present LUA interpreter code on GitHub provides enough information as I see now. My main proble is what I had detailed a bit above, that it seems only a kind of "general" orbit data are available, not the ones displayed in the MFDs, where one could...

My problem that I try to solve: I am trying to set up a Distance Retrograde orbit (DRO) cca. 70 000 km around the Moon as the Orion capsule did it recently. It is a multiple body situation, where both the Moon and the Earth is effecting the capsule. I try to monitor the distance to the Moon...

Yes, thanks. However, I cannot find info about <vessel>:get_elementsex() function. I found it in the Lua script interpreter code on GutHub. That writes that it returns info regarding the main gravity source. I would like to read the orbit data from one of the MFD-s in the DeltaGlider that is set...

I think, I can reverse engineer this. It is quite well documented. This is the code of the LUA interpreter: https://github.com/orbitersim/orbiter/tree/main/Src/Module/LuaScript/LuaInterpreter

Thanks, this is good, but only if I plan to program in C++. I am looking for the API description for LUA programming. This type: orion = vessel.get_interface('orion') el,op = orion:get_elementsex() TimeToPeriapsis=op.PeT

Hi, could you please recommend me some good Orbiter API and LUA documents? I specifically would like to access the MDF of the Delta Glider. I have found some ad-hoc examples that works, but not a complete documentation.

Indeed, thanks. I will check.

Hi, I would like to visualize the recorded flight path on a top-down Earth-Moon projection. Is there any tool for that? Can I use the recording function and get the position data? I could not find that data and some format description. Gabor

Well, so far I had failed to figure out, how could I define the proper speed vector once I had positioned the spaceship beypnd the L2 point (70 000 km from Moon). The space vector should lay on the Moon - Earth orbital plane and that is not a reference frame option. I think, I should calculate a...

Wow, sure, I am stupid! This is why Orbiter is a brilliant tool to learn. Thanks.

I am returning back to Orbiter for a very long break and should re-learn a lot of things. Now I try to re-create the distant retrograde orbit (DRO) of Artemis-1 Orbiter when they had filmed Earth eclipsed by Moon as you can see it here Moon eclipses Earth. I use Orbiter 2016 on Windows 10. I try...

One more step... When starting playing, you might open the Ecenario Editor TLE again and press "Date", "Now", "<<Done" and "Close". This will put you in real time. If the ISS data is fresh enough, it will be positioned correctly. Check it with any ISS tracker map as for example with this.

Thanks, working great! REFRESHING SATELLITE DATA IN ORBITER 2016 Steps: Download the Scenery Editor TLE from here Copy the DLL into the Moduules\Plugin directory Run Orbiter2016 with the scenario with ISS Open the satellite data page Copy the 3 lines from ISS to an entry ASCII file and save...

Hi, I would like to fly the DeltaGlider to the ISS in approximatelly current time. For that I should create a scenario with the current orbital elements of the ISS. There are several sites providing information on the satellites orbital elements, but it is not at all obvious, how I should...