Vanamonde Posted September 9, 2016 Share Posted September 9, 2016 A pair of threads about this same mission have been merged. Link to comment Share on other sites More sharing options...
IonStorm Posted September 10, 2016 Share Posted September 10, 2016 On September 8, 2016 at 4:54 PM, njmksr said: Whoops! Forgot we had a member of the OSIRIS-REx team on the forums! I doubt that he'll be paying attention to this. He's either got pre-launch coverage to watch, or, ya know, he's actually there << (More likely) I was on console in the event of an anomaly. Luckily, it was pretty boring. Link to comment Share on other sites More sharing options...
GoSlash27 Posted September 10, 2016 Share Posted September 10, 2016 23 minutes ago, IonStorm said: I was on console in the event of an anomaly. Luckily, it was pretty boring. Congrats to your team, ULA, and the USAF range team. Really a textbook launch yesterday. I was impressed with how easy you folks made it look. Best, -Slashy Link to comment Share on other sites More sharing options...
Robotengineer Posted September 11, 2016 Share Posted September 11, 2016 @IonStorm What do you (and the team) do during the cruise phase? Link to comment Share on other sites More sharing options...
IonStorm Posted September 11, 2016 Share Posted September 11, 2016 8 hours ago, Robotengineer said: @IonStorm What do you (and the team) do during the cruise phase? Most of the team moves to other projects. (This is one reason launch is bittersweet. I will now rarely see the friends I have made and worked with for years.) There will be periodic updates https://dslauretta.com/2016/09/10/osiris-rex-day-2-in-space/ through the DSN http://eyes.nasa.gov/dsn/dsn.html. So the navigation team is getting busy as the build team moves on. (Note that the enhanced acceleration noted was truly tiny, on the order of µm/s2.) My time on the project also decreases--there is less for me to do on a daily basis and this saves money for OSIRIS-REx. There are some scheduled activities: calibrations, rehearsals of observing modes (ground testing is great, but not quite the same as in space), tweaks to the software. 15 days after launch we turn on the instruments for a health check. In January we do a maneuver to put us on track with Bennu and prepare for EGA in a year. Link to comment Share on other sites More sharing options...
insert_name Posted February 3, 2017 Share Posted February 3, 2017 Looks like Osiris rex will be used to map earth Trojans before EGA http://spaceflightnow.com/2017/02/01/nasas-osiris-rex-probe-moonlights-as-asteroid-sleuth/ Link to comment Share on other sites More sharing options...
IonStorm Posted February 3, 2017 Share Posted February 3, 2017 Indeed! It is an opportunity to rehearse some of our procedures and perhaps get some science at the same time. See also, https://dslauretta.com/2017/01/19/searching-for-the-earth-trojan-asteroids/ Link to comment Share on other sites More sharing options...
Racescort666 Posted February 3, 2017 Share Posted February 3, 2017 Yay science! This has been my favorite mission so far. I even bought an OSIRIS-REx coffee mug. Link to comment Share on other sites More sharing options...
IonStorm Posted February 3, 2017 Share Posted February 3, 2017 41 minutes ago, Racescort666 said: Yay science! This has been my favorite mission so far. I even bought an OSIRIS-REx coffee mug. Thanks! Which design: dinosaur, shield, or triangle logo? Sadly, the "Kiss my asteroid!" mugs were limited edition. P.S. Breaking Bad fans will also appreciate that searching for chiral compounds is an OSIRIS-REx objective. In our case, not D-methamphetamine (dangerous drug) vs. L-methamphetamine (mild decongestant) but compounds important for the origin and evolution of life, e.g. http://www.labnews.co.uk/features/reaching-origins-life-22-10-2015/ http://pubs.acs.org/doi/abs/10.1021/acscentsci.6b00074 Link to comment Share on other sites More sharing options...
Racescort666 Posted February 3, 2017 Share Posted February 3, 2017 29 minutes ago, IonStorm said: Thanks! Which design: dinosaur, shield, or triangle logo? Sadly, the "Kiss my asteroid!" mugs were limited edition. P.S. Breaking Bad fans will also appreciate that searching for chiral compounds is an OSIRIS-REx objective. In our case, not D-methamphetamine (dangerous drug) vs. L-methamphetamine (mild decongestant) but compounds important for the origin and evolution of life, e.g. http://www.labnews.co.uk/features/reaching-origins-life-22-10-2015/ http://pubs.acs.org/doi/abs/10.1021/acscentsci.6b00074 I assume that this is the triangle one. I wanted to get a tshirt when I was at KSC but they only had XL and I wear a medium. I ended up with a Delta IV Heavy shirt instead. Link to comment Share on other sites More sharing options...
IonStorm Posted February 3, 2017 Share Posted February 3, 2017 8 minutes ago, Racescort666 said: I assume that this is the triangle one. Yes, just like on our fairing (now somewhere in the Atlantic ocean). Link to comment Share on other sites More sharing options...
tater Posted September 22, 2017 Share Posted September 22, 2017 Old thread, but space missions are long, and this is the merged thread: Good job on the slingshot! Link to comment Share on other sites More sharing options...
IonStorm Posted September 22, 2017 Share Posted September 22, 2017 9 minutes ago, tater said: Good job on the slingshot! Thanks! We get instrument calibration data from the Earth and Moon tomorrow. Link to comment Share on other sites More sharing options...
tater Posted September 22, 2017 Share Posted September 22, 2017 Might be the coolest reply I've ever gotten here Link to comment Share on other sites More sharing options...
insert_name Posted September 22, 2017 Share Posted September 22, 2017 20 minutes ago, IonStorm said: Thanks! We get instrument calibration data from the Earth and Moon tomorrow. This is really cool, couple questions though, how much delta v did you gain? also how did you determine when the gravity assist ended as it reached perigee earlier today ? Link to comment Share on other sites More sharing options...
IonStorm Posted September 22, 2017 Share Posted September 22, 2017 Just now, insert_name said: This is really cool, couple questions though, how much delta v did you gain? also how did you determine when the gravity assist ended as it reached perigee earlier today ? We got a 6° plane change, not a speed increase. The effective ∆V imparted to the spacecraft by the angular momentum exchange with Earth as a result of this flyby is 3.778 km/s. This is about 90% more than the 1.986 km/s ∆V capability in the spacecraft’s monoprop system. This velocity change does not mean that the spacecraft either speeds up or slows down by this amount, since much of this change is used change the orbit inclination. There is no EGA event, but the countdown clock was at closest approach. The observing campaign lasts 10 days after with downlinks at EGA +1, +3 and +10. The navigation team breathed easier after contact with Goldstone was re-established after crossing into the western hemisphere with no errors or interruptions. Link to comment Share on other sites More sharing options...
Canopus Posted September 22, 2017 Share Posted September 22, 2017 11 minutes ago, IonStorm said: We got a 6° plane change, not a speed increase. The effective ∆V imparted to the spacecraft by the angular momentum exchange with Earth as a result of this flyby is 3.778 km/s. This is about 90% more than the 1.986 km/s ∆V capability in the spacecraft’s monoprop system. This velocity change does not mean that the spacecraft either speeds up or slows down by this amount, since much of this change is used change the orbit inclination. There is no EGA event, but the countdown clock was at closest approach. The observing campaign lasts 10 days after with downlinks at EGA +1, +3 and +10. The navigation team breathed easier after contact with Goldstone was re-established after crossing into the western hemisphere with no errors or interruptions. I always wondered why some High gain antennas are covered like the one on OSIRIS-REx and Juno, where as older Spacecraft don't seem to be build that way. What is the purpose or Advantage of these covers? Link to comment Share on other sites More sharing options...
Ultimate Steve Posted September 22, 2017 Share Posted September 22, 2017 Good gravy, it's already been a year? Anyway, good luck with the mission to everyone working on it (particularly @IonStorm). Hopefully the spacecraft will have another encounter with Earth in a few more years, bearing space-rocks. Link to comment Share on other sites More sharing options...
IonStorm Posted September 22, 2017 Share Posted September 22, 2017 51 minutes ago, Canopus said: I always wondered why some High gain antennas are covered like the one on OSIRIS-REx and Juno, where as older Spacecraft don't seem to be build that way. What is the purpose or Advantage of these covers? Primarily the blanketing is for thermal control of the spacecraft. We use Germanium Black Kapton (GBK) which provides better electrostatic dissipation than the gold kind. Link to comment Share on other sites More sharing options...
insert_name Posted August 24, 2018 Share Posted August 24, 2018 Approach phase has begun, currently Benny is only visible as a point of light http://nasa.gov/feature/goddard/2018/nasas-osiris-rex-begins-asteroid-operations-campaign Link to comment Share on other sites More sharing options...
insert_name Posted September 28, 2018 Share Posted September 28, 2018 Another picture of Bennu, this time to confirm the absence of moons and dust Link to comment Share on other sites More sharing options...
insert_name Posted October 2, 2018 Share Posted October 2, 2018 1st braking manuver successful https://m.facebook.com/story.php?story_fbid=1770084199771062&id=160193164093515 Link to comment Share on other sites More sharing options...
IonStorm Posted October 2, 2018 Share Posted October 2, 2018 6 hours ago, insert_name said: 1st braking manuver successful https://m.facebook.com/story.php?story_fbid=1770084199771062&id=160193164093515 A main engine (monoprop) burn of 351 m/s which took 11 min 15 s. Link to comment Share on other sites More sharing options...
insert_name Posted October 16, 2018 Share Posted October 16, 2018 Second braking manuver successful https://www.asteroidmission.org/?latest-news=nasas-osiris-rex-executes-second-asteroid-approach-maneuver Link to comment Share on other sites More sharing options...
IonStorm Posted October 18, 2018 Share Posted October 18, 2018 (edited) The TAGSAM cover was deployed and verified by measuring the change in mass of the spacecraft by moment of inertia differences. Also, Bennu is now visualized at >1 pixel for the first time. The images represent Bennu at 1.09 pixels, 1.71 pixels and 3.75 pixels, and were obtained on Oct. 13, 14 and 15, respectively. From the first to the last image, OSIRIS-REx’s range to Bennu decreased from around 33,350 km to around 9,750 km. Edited October 18, 2018 by IonStorm Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now