IonStorm

For OSIRIS-REx, the Centaur is only used for the first 40 minutes (see below image from a NASA Social). After that only the monoprop engines on the spacecraft are used, so LH2 boiloff is not a big problem.

If you're good you should consider becoming a NASA/GSFC engineer. (There is a little rivalry between JPL and Goddard, where I work and from where OSIRIS-REx is managed.) Please do.

The Atlas V 4-m fairing has arrived at KSC. Here is an image the fairing half with the logos.

No, I play on my own time. And not that much lately. But I compliment your strategy:

1 Drogue and 1 main. Just like Stardust.

Remember nothing is due until actual launch +30 days, so no earlier than October 8. This allows people to use actual launch audio and to mimic the actual launch timeline, should anyone wish to. Until then, no entry is considered final.

Cool. Did you notice that Dante Lauretta, PI of OSIRIS-REx (basically my boss) commented on your video:

I really can't go into details about the propulsion system https://books.google.com/books?id=P5dBC_JgSLEC&pg=PA67 discusses how it us often done. This post https://dslauretta.com/2014/12/16/integration-of-the-osiris-rex-main-propellant-tank/ (mentioned several times in this thread) explains much of what you are asking:

Details on the propulsion system are ITAR controlled, but here is some public information: https://dslauretta.com/2014/12/16/integration-of-the-osiris-rex-main-propellant-tank/ and https://dslauretta.com/2013/12/03/six-degrees-of-freedom/ Further searching finds http://www.aiaa-space.org/OSIRIS-REx/ which states: Additional searching gives http://spaceflight101.com/maven/spacecraft-information/ which states that Aerojet is the vendor for MAVEN. A search for GOES-R thrusters comes up with http://www.moog.com/products/thrusters.html as the vendor and a search for Aerojet gives http://www.rocket.com/propulsion-systems/monopropellant-rockets. So other you can study Moog and Aerojet brochures to get all kinds of details.

Just the 237 in this album. Keep an eye out on: https://twitter.com/OSIRISREx https://twitter.com/rex_pen https://www.facebook.com/OSIRISREx/ http://www.asteroidmission.org https://www.instagram.com/osiris_rex/ https://plus.google.com/+OSIRISRExMission/posts https://www.youtube.com/OSIRISREx https://dslauretta.com Here is an interview with our PI yesterday for Asteroid Day:

Typically space trade magazines edit and republish NASA releases, so here are two: http://www.space.com/33262-recreate-osiris-rex-mission-kerbal-game.html http://www.spacedaily.com/reports/Gamers_Tackle_Virtual_Asteroid_Sampling_Mission_999.html

It may not be obvious, but the red things are remove-before-flight covers as the the plate (with sticker) over OVIRS. For example in this image you can see the RCS thrusters on the corners are covered in red, there are red lifting eyelets, PolyCam and MapCam have red jackets, and OVIRS has a tan plate with a logo sitcker. All removed before flight. Obviously, so is the bag over the SRC at OTES.

So this looks a little like an early OSIRIS concept. Have fun. https://dslauretta.com/2014/03/06/ten-years-of-spacecraft-design/ For those striving for spacecraft aesthetic authenticity, here are a couple hundred images (all approved for release). They are roughly in reverse chronological order of the construction, integration, and testing phase of OSIRIS-REx.

Note that any version after 1.0 is permitted, so if you have an older stable build that is fine. It is also not due until October, so you can still stick to your schedule.

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

It improves thermal stability and thus performance of the antenna http://mars.nasa.gov/maven/multimedia/images/?ImageID=5171 The ones, for example on p61? Those are reaction wheels.

Yes. It is a germanium Kapton thermal blanket.

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

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.

My plan exactly. Once I hear if the rules I created are reasonable. Please. And one for both RSS and stock.

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: Most accurate spacecraft reproduction in stock KSP with no mods Most accurate spacecraft reproduction with unlimited use of mods Most accurate reproduction of OSIRIS-REx mission design in the KSP universe (unlimited mods) Most accurate reproduction of OSIRIS-REx mission design in RSS/RO (unlimited mods) Lowest ∆V OSIRIS-REx mission design in the KSP universe to (unlimited mods) Lowest ∆V OSIRIS-REx mission design in RSS/RO (unlimited mods) 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.com, http://gsfcir.gsfc.nasa.gov/colloquia/4942/touchstone-the-osiris-rex-design-reference-mission, https://www.nasa.gov/mission_pages/osiris-rex/index.html, https://www.facebook.com/OSIRISREx/, https://www.youtube.com/osirisrex, https://www.instagram.com/osiris_rex/, https://plus.google.com/+OSIRISRExMission/posts, https://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.

Details are in a presentation by our Deputy Systems Engineer, Ron Mink at http://gsfcir.gsfc.nasa.gov/colloquia/4942/touchstone-the-osiris-rex-design-reference-mission at about 22:45 into the lecture. The first Deep Space Maneuver (DSM-1) is January 9, 2017. There is an Earth Gravity Assist (EGA) September 22, 2017. DSM-2 is November 21, 2017. I picked launch+30 days as the due date, which puts the due date no earlier than October 8, 2016 (depending on the weather in Florida the previous month). If that is widely believed to be insufficient, I can be persuaded to extend it P.S. Congratulations on going to Philmont.

This schedule from https://dslauretta.com/2015/02/08/the-osiris-rex-heavy-launch-opportunity/ is a bit out of date, but the arrival and departure dates are still accurate, so closer to two years to "arrive." The definition of arrive depends on if you define it as first imaging by a camera, navigating based on Bennu landmarks, or entering an orbit. This is between 712 and 826 days in this figure. (We have since moved around some margin based on solar distance, Sun-Bennu-Earth angle for telecom, and "human factors" aka letting people sleep a little.) A complexity I think ignored by RemoteTech (though I haven't done much outside stock KSP myself) is there are certain positions a spacecraft cannot be in. Many spacecraft, such as OSIRIS-REx (or Hubble for that matter) have "keep-out" zones to prevent the cameras and other optical instruments from looking at the Sun and damaging them. Since the OSIRIS-REx high-gain antenna (HGA) is fixed there are orientations where pointing the antenna at Earth also risks pointing the instruments at the Sun. We do have movable solar arrays (S/A) so the constraint of pointing the HGA at Earth, not pointing the instrument deck at the Sun, but pointing the S/A at the Sun is easier for us. RemoteTech might handle the problem of the Sun being between the Earth and the spacecraft, I don't recall. Good luck!

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.