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James Kerman

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    SpaceX Discussion Thread

    in Science & Spaceflight

    Posted

    Actually it appears that the two healthy sats coming back are testing the deorbit process:

    Quote

    The rest of the 57 satellites have been working as intended, according to the company. Forty-five of the satellites have raised their altitudes with their onboard thrusters and have reached their final intended orbits of 342 miles (550 kilometers) up. Five of the satellites are still in the middle of raising their orbits, and another five are undergoing additional systems checks before they raise their orbits. As for the remaining two satellites, SpaceX intentionally fired their onboard thrusters with the goal of crashing them into the planet’s atmosphere. There wasn’t anything wrong with those satellites — the company just wanted to test the de-orbiting process.
    https://www.theverge.com/2019/6/28/19154142/spacex-starlink-60-satellites-communication-internet-constellation

     

    there is no surface feature can you help me ? (things like rocks or trees...)

    in KSP1 Gameplay Questions and Tutorials

    Posted

    Welcome to the forum @accueil750.

    I have moved your question to gameplay questions.

    The 1.7.2 patch makes the Breaking Ground surface features more abundant.

    If you mean the normal terrain features you need to go to the main menu settings, click graphics on the left and in the top left you should see an option to enable 'scatter terrains' and a slider for density.

    NASA's Dragonfly mission to Titan

    in Science & Spaceflight

    Posted

    NASA has used Cassini data to select a landing site and timing for calm weather.
     

    Quote

     It will first land at the equatorial “Shangri-La” dune fields, which are terrestrially similar to the linear dunes in Namibia in southern Africa and offer a diverse sampling location. Dragonfly will explore this region in short flights, building up to a series of longer “leapfrog” flights of up to 5 miles (8 kilometers), stopping along the way to take samples from compelling areas with diverse geography. It will finally reach the Selk impact crater, where there is evidence of past liquid water, organics – the complex molecules that contain carbon, combined with hydrogen, oxygen, and nitrogen – and energy, which together make up the recipe for life. The lander will eventually fly more than 108 miles (175 kilometers) – nearly double the distance traveled to date by all the Mars rovers combined.
    https://www.nasa.gov/press-release/nasas-dragonfly-will-fly-around-titan-looking-for-origins-signs-of-life/

     

    How to orbit without turning off engines

    in KSP1 Gameplay Questions and Tutorials

    Posted

    1 minute ago, Nendra said:

    Ok, so by using Thrust limiter on reaching orbit, we can orbit the spacecraft without turning off the engine right? 

    You can do this with the throttle during flight as well without having to tune thrust. In stock this is less efficient as you will be subject to more drag and gravity losses during ascent.

    When playing with the rescaled system, you will probably need to burn all the way up anyway so tweaking probably won't be necessary.

    Power problem with scanning arm? O_O

    in Breaking Ground Support

    Posted

    16 minutes ago, Dale Christopher said:

    Hmm, how I’m reading this is that you need the equivalent amount of power for the full scan in storage capacity to begin the scan, but if you have less overall storage it won’t start even if you can cover it with real-time power generation... this seems like a bug?

    I confirm this. I disabled the batteries on my rover leaving 100ec. The scan refused to start.

    Power problem with scanning arm? O_O

    in Breaking Ground Support

    Posted · Edited by James Kerman
    Added information.

    Hello @Dale Christopher.

    I have moved your topic to Breaking Ground Support.

    I just tested this in my stock install. What I see is that the large scanning arm uses about 26ec per second and uses about 500ec all up. The only thing I can think of is that you may have a locked 200ec battery (or two 100's) on your vessel.

    [Edit] You should also check pods/probe cores for locked charge.

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