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OSIRIS-REx Asteroid Sample Return


IonStorm

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4 minutes ago, NotAgain said:

B) If anyone wants a nice Atlas V and Centaur (Twin and Single engine variants) check out the Bluedog Design Bureau mod by @CobaltWolf 

Just skimmed some of the thread real quick - My parts currently do not have RSS/RO compatibility. If you are just looking for RSS, Real Scale Boosters by @NecroBones might be better. 

If you need AJ-60 SRBs, you'll need to grab them from KW Rocketry or something since I do not have them yet.

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@IonStorm,

how do you want the thing presented? And in which version of KSP? Are there points for visual mods? DO you want documentation? A design notebook?

Do you think you could lay out the rules a bit more formally? I like making replicas that are true-to-life, but since this follows engineering principles, I'd rather aim for a balance between accuracy and points here.

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Hi there!

Long time i havent posted in the forums, but this made me come back to say i will be giving it a shot! Stock tho, i never really got into mods too much :)

Also wanted to say I actually found out about this via the news, and i think it is great that NASA and KSP are helping each other, and more importantly bringing people closer to space and science in general. Ionstorm, you sir are a gentleman and a scholar! Keep it up! :)

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22 minutes ago, 3mon said:

Hi there!

Long time i havent posted in the forums, but this made me come back to say i will be giving it a shot! Stock tho, i never really got into mods too much :)

Also wanted to say I actually found out about this via the news, and i think it is great that NASA and KSP are helping each other, and more importantly bringing people closer to space and science in general. Ionstorm, you sir are a gentleman and a scholar! Keep it up! :)

Welcome back, 3mon!

Space is everywhere. You cannot hide. Of course, with your avatar, I'm sure you already know that. :P

I saw it on the news, too, but I saw it here first.

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On June 16, 2016 at 0:07 PM, Dman979 said:

how do you want the thing presented? And in which version of KSP? Are there points for visual mods? DO you want documentation? A design notebook?

Do you think you could lay out the rules a bit more formally? I like making replicas that are true-to-life, but since this follows engineering principles, I'd rather aim for a balance between accuracy and points here.

These are good questions and I don't have immediate answers of what is fun, challenging, and reasonable, as my personal experience is messing around in stock KSP and watching Scott Manley and Bob Fitch videos.  

Categories:

  1. Most accurate spacecraft reproduction in stock KSP with no mods
  2. Most accurate spacecraft reproduction with unlimited use of mods
  3. Most accurate reproduction of OSIRIS-REx mission design in the KSP universe (unlimited mods)
  4. Most accurate reproduction of OSIRIS-REx mission design in RSS/RO (unlimited mods)
  5. Lowest ∆V OSIRIS-REx mission design in the KSP universe to (unlimited mods)
  6. Lowest ∆V OSIRIS-REx mission design in RSS/RO (unlimited mods)
  7. Consolation prize for funniest and most epic fail

Proof: For 1 and 2 the .craft file (and list of mods for 2) and images are sufficient, but additional explanatory video appreciated. For 3-6 images or a single explanatory video of launch, maneuvers, and each mission phase.  Please read the posts in the thread, http://www.asteroidmission.org, https://dslauretta.comhttp://gsfcir.gsfc.nasa.gov/colloquia/4942/touchstone-the-osiris-rex-design-reference-mission, https://www.nasa.gov/mission_pages/osiris-rex/index.htmlhttps://www.facebook.com/OSIRISREx/https://www.youtube.com/osirisrexhttps://www.instagram.com/osiris_rex/https://plus.google.com/+OSIRISRExMission/postshttps://twitter.com/OSIRISREx, etc. for the details on these phases, the spacecraft, the payload, and the sampling system.

Limits: KSP version 1.0 or newer is permitted, the most recent version is preferred.  Propulsion systems for 1-4 are chemical and the spacecraft is monoprop.  For 5-6 propulsion systems are limited to those plausibly available (e.g. chemical, ion, nuclear, aerospike, etc.) but not future technologies with no real-world prototype (e.g. no fusion, fission, warp, etc.).  For 5 and 6, mission duration cannot be longer than 15 years.  Low ∆V missions which to not adequately survey Bennu will not be considered. In categories 2-7 all mods/plugins must be listed.  Any custom-made mods/plugins and .craft files must be supplied.  All missions (categories 3-7) must have a launch wet mass of 2110 kg and encounter an object of Bennu's mass and size, such as the one generously created by @KillAshley's Kopernicus.

Judging: I will judge the fidelity of the submission to the mission and reserve the right to solicit the input of members of the OSIRIS-REx team.

Are these rules fun and fair?  If so, I'll add them to the front post or accept suggestions to modify them to maximize your entertainment and education.

Edited by IonStorm
Edited wet mass requirements for cat1 and KSP version number
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@IonStorm it can save you some repetition if you post the rules above on the opening page (in a spoiler tag if it's getting cluttered), plus a the link to grab the RSS and stock version of the Bennu mod. The way the forum pages work here its hard to find stuff without reading every single post in a challenge. 

also do I get a consolation prize for giving this a rough attempt back before it was news :)

 

 

Edit: also, we have seen in the Bennu mod that the SOI is so small as to make intercept difficult with KSP intercept engine. If anyone goes through the trouble to Hyperedit a probe there (as a target to simplify manouvers), share your savegame!  It will be a fidgety process, so it might be nice to have a savegame easy to download in the right epoch with a target already set up. Not at my computer for a few days, but I'll try if nobody else gets to it.

Edited by Jetski
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27 minutes ago, Jetski said:

@IonStorm it can save you some repetition if you post the rules above on the opening page (in a spoiler tag if it's getting cluttered), plus a the link to grab the RSS and stock version of the Bennu mod. The way the forum pages work here its hard to find stuff without reading every single post in a challenge. 

My plan exactly.  Once I hear if the rules I created are reasonable.

28 minutes ago, Jetski said:

If anyone goes through the trouble to Hyperedit a probe there (as a target to simplify manouvers), share your savegame!  

Please.  And one for both RSS and stock.

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2 hours ago, Wonderbreadninja said:

@IonStorm how would you like us to submit out creations?    Also, are you working out of the Lockheed station in Denver, Co?

 

Please post your submission in this thread.  

The spacecraft was built at Lockheed in (Waterton) Denver, CO.  I have visited many times, but I work at Goddard Space Flight Center in Maryland.

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To the ModuleManager community:

Would anyone be willing to make a patch to the RSS files that has them start the game in the same configuration as they will be in on September 8, 2016, and add the Bennu mod to it, too?

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On ‎6‎/‎13‎/‎2016 at 5:26 PM, IonStorm said:

Here is a video of the spacecraft being spin-balanced at K(ennedy)SC.  It is critical to keep the center of area and the center of mass at the same spot since the solar pressure close to the force of gravity at Bennu.  For anyone making an OSIRIS-REx model, this should give a nice view.

 

I'd take a look at this.

What did you use for the sides?

Edited by Dman979
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6 minutes ago, Wonderbreadninja said:

@IonStorm I am confused about one thing in the design,  Are the solar panels equal to or greater then the top of the frame?  I have seen numerous pictures with both style.  thanks!

Good progress.  This image should also help answer your question.

igqgTV3.jpg

 

 

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3 minutes ago, Dman979 said:

Why is it needed?

It seems like it would get in the way.

It improves thermal stability and thus performance of the antenna http://mars.nasa.gov/maven/multimedia/images/?ImageID=5171

9 minutes ago, Wonderbreadninja said:

@IonStorm are the 4 smaller dish looking things in the CAD drawing behind the main dish?

 

The ones, for example on p61?  Those are reaction wheels.

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HERE IS MY OFFICIAL ENTRY, YAY!

Hello Fellow Kerbalteers!  

     After long hours of fun, I am proud to present my entry for Category 2: Recreation with unlimited mod use!  I hope that the layout of this post will satisfy the requirements needed for an entry, if not please let me know what I need to add.  It was really fun to make and I enjoyed this opportunity to mimic a future mission.  Many thanks to @IonStorm and all the people at Lockheed Martin and NASA!  Best of luck on the mission!

SPECS:

597 Part Count

50,330 kg

MOD LIST:

https://docs.google.com/document/d/1m00QdBUPDV2SGG7IkvDHvgengk5zojpIpswMa5xS4u4/edit?usp=sharing

IMAGE GALLERY:

 

VIDEO PRESENTATION:

You can view my commentated video here: 

 

 

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55 minutes ago, Nefrums said:

It is a bit hard to do a model using stock parts, and still get a wet/dry mass resembling the real thing. Structural panels are just to heavy to be of any use.

But I'll give it a try! :)

Good point.  Since 1 and 2 are a beauty pageant, I'll remove the mass restriction.

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3 hours ago, HoloYolo said:

I'll do this when there's a Bennu mod. I have RO and RSS. Glad this challenge is up. But for now, I must set up a satellite network in orbit.  

There is a Bennu mod, works well for both RSS and stock. Look a few posts up

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This is a fun and very difficult challenge.  

I'm build something that roughly resembles OSIRIS-REx using only stock parts,  I will use this to recreate the mission in KSP universe.

Wet mass is spot on, but dry it is 30 kg to heavy.  It even has a sampler arm that hopefully will poke the asteroid a bit. :)  (Sample transfer will be left to the imagination)

It will be sent to space by a rocket with the right stages but a reduced dV of 4080 m/s that I think is close to the analog of the real one in KSP universe.

Here is a teaser pic of the craft leaving Kerbin.

3SPqZm7.jpg

 

 

 

 

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