Ultimate Steve Posted December 15, 2018 Share Posted December 15, 2018 On 12/11/2018 at 10:46 PM, kerbiloid said: I know I'm sort of derailing the thread, but I have known about this story for many years, as the first story to feature a sort of "Space station." And over the past few days (it's readable in one sitting but I had stuff to do) I've finally read it. First off, this was pretty much expected, the orbital mechanics are completely whack. Second, the non-spacey physics (life support, propulsion, structural, acceleration) were also whack. But who cares, this was written in 1869 for Pete's sake! 1869! While it came after the much more accurate "From the Earth to the Moon," It was still before the telegraph, telephone, and incadescent lightbulb. During the tail end of, or shortly after the construction of the first transcontinental railroad. At the time, radio was a theory at best. But I enjoyed it, and not just because I tend to enjoy space sci-fi of that era. It predicted a few things, if not accurately. And it also surprised me with deep meaning and a deep question, which pops up towards the end, which IMO is more relevant today than it ever has been. http://www.gutenberg.org/ebooks/1633 - First link if you want to read it. Anyone have any other 1860's era space sci-fi besides Verne? Quote Link to comment Share on other sites More sharing options...
Bill Phil Posted December 15, 2018 Share Posted December 15, 2018 33 minutes ago, Ultimate Steve said: I know I'm sort of derailing the thread, but I have known about this story for many years, as the first story to feature a sort of "Space station." And over the past few days (it's readable in one sitting but I had stuff to do) I've finally read it. First off, this was pretty much expected, the orbital mechanics are completely whack. Second, the non-spacey physics (life support, propulsion, structural, acceleration) were also whack. But who cares, this was written in 1869 for Pete's sake! 1869! While it came after the much more accurate "From the Earth to the Moon," It was still before the telegraph, telephone, and incadescent lightbulb. During the tail end of, or shortly after the construction of the first transcontinental railroad. At the time, radio was a theory at best. But I enjoyed it, and not just because I tend to enjoy space sci-fi of that era. It predicted a few things, if not accurately. And it also surprised me with deep meaning and a deep question, which pops up towards the end, which IMO is more relevant today than it ever has been. http://www.gutenberg.org/ebooks/1633 - First link if you want to read it. Anyone have any other 1860's era space sci-fi besides Verne? The electric telegraph was most certainly a thing by 1869. 1869 was 11 years after the first transatlantic line and a second one was laid before 1869 as well. And maybe even a third, though I can’t say for sure. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted December 15, 2018 Share Posted December 15, 2018 12 hours ago, Bill Phil said: The electric telegraph was most certainly a thing by 1869. 1869 was 11 years after the first transatlantic line and a second one was laid before 1869 as well. And maybe even a third, though I can’t say for sure. Ahh, sorry, I meant to type phonograph. Quote Link to comment Share on other sites More sharing options...
IonStorm Posted December 20, 2018 Share Posted December 20, 2018 Preliminary survey is over. Getting ready to orbit on 12/31. This will be the smallest object ever orbited. Quote Link to comment Share on other sites More sharing options...
Ozymandias_the_Goat Posted December 21, 2018 Share Posted December 21, 2018 18 hours ago, IonStorm said: This will be the smallest object ever orbited. Clearly, you have never orbited the magic boulder. Anyway, I assume that we are in the part of the mission in which we search for potential landing sites? Here’s the orbital trajectories: Quote Link to comment Share on other sites More sharing options...
tater Posted December 31, 2018 Share Posted December 31, 2018 Quote Link to comment Share on other sites More sharing options...
Scotius Posted December 31, 2018 Share Posted December 31, 2018 On 12/15/2018 at 5:20 AM, Ultimate Steve said: I know I'm sort of derailing the thread, but I have known about this story for many years, as the first story to feature a sort of "Space station." And over the past few days (it's readable in one sitting but I had stuff to do) I've finally read it. First off, this was pretty much expected, the orbital mechanics are completely whack. Second, the non-spacey physics (life support, propulsion, structural, acceleration) were also whack. But who cares, this was written in 1869 for Pete's sake! 1869! While it came after the much more accurate "From the Earth to the Moon," It was still before the telegraph, telephone, and incadescent lightbulb. During the tail end of, or shortly after the construction of the first transcontinental railroad. At the time, radio was a theory at best. But I enjoyed it, and not just because I tend to enjoy space sci-fi of that era. It predicted a few things, if not accurately. And it also surprised me with deep meaning and a deep question, which pops up towards the end, which IMO is more relevant today than it ever has been. http://www.gutenberg.org/ebooks/1633 - First link if you want to read it. Anyone have any other 1860's era space sci-fi besides Verne? Try to find this https://en.wikipedia.org/wiki/Edison's_Conquest_of_Mars Quote Link to comment Share on other sites More sharing options...
IonStorm Posted December 31, 2018 Share Posted December 31, 2018 (edited) 6 hours ago, tater said: And orbit has now been achieved https://www.asteroidmission.org/?latest-news=nasas-osiris-rex-spacecraft-enters-close-orbit-around-bennu-breaking-record Edited December 31, 2018 by IonStorm Quote Link to comment Share on other sites More sharing options...
tater Posted December 31, 2018 Share Posted December 31, 2018 Woot! Quote Link to comment Share on other sites More sharing options...
ThatGuyWithALongUsername Posted December 31, 2018 Share Posted December 31, 2018 10 minutes ago, IonStorm said: And orbit has now been achieved Congratulations! This sounds pretty tricky, given the low gravity and irregular shape. Out of curiosity, what's OSIRIS-REx's average orbital speed around Bennu? It has to be going pretty slowly, at least in spaceflight terms. Quote Link to comment Share on other sites More sharing options...
tater Posted December 31, 2018 Share Posted December 31, 2018 A pretty amazing accomplishment. What a day for our robots, and the people who drive them! Quote Link to comment Share on other sites More sharing options...
IonStorm Posted December 31, 2018 Share Posted December 31, 2018 1 hour ago, ThatGuyWithALongUsername said: Congratulations! This sounds pretty tricky, given the low gravity and irregular shape. Out of curiosity, what's OSIRIS-REx's average orbital speed around Bennu? It has to be going pretty slowly, at least in spaceflight terms. 6 cm/s Quote Link to comment Share on other sites More sharing options...
Scotius Posted January 1, 2019 Share Posted January 1, 2019 A healthy frog would achieve orbital velocity without breaking a sweat A snail would need a boost from his grasshopper friend though. Quote Link to comment Share on other sites More sharing options...
MaverickSawyer Posted January 1, 2019 Share Posted January 1, 2019 15 minutes ago, Scotius said: A healthy frog would achieve orbital velocity without breaking a sweat A snail would need a boost from his grasshopper friend though. "This. Is. BENNU!" *Kicks snail into orbit* Quote Link to comment Share on other sites More sharing options...
IonStorm Posted January 2, 2019 Share Posted January 2, 2019 (edited) Navigation camera images. Spacecraft pathway. https://www.asteroidmission.org/galleries/spacecraft-imagery/preliminarysurveynavcam-2/ Edited January 2, 2019 by IonStorm Quote Link to comment Share on other sites More sharing options...
tater Posted January 2, 2019 Share Posted January 2, 2019 ^^^ that is awesome. Quote Link to comment Share on other sites More sharing options...
tater Posted January 2, 2019 Share Posted January 2, 2019 I wondered why the gif wasn't instantly playing... til I noticed it was 38 MB. Quote Link to comment Share on other sites More sharing options...
IonStorm Posted February 1, 2019 Share Posted February 1, 2019 Here is the shape model of Bennu from the November data. Good enough for RSS. Lidar shape model will be later. https://www.asteroidmission.org/updated-bennu-shape-model-3d-files/?fbclid=IwAR1-nVo1w_1ZDJnn3X_aRWSVCXVtNEdnqLGtuRbcCHmvczUPDFSr0-nzpp8 Quote Link to comment Share on other sites More sharing options...
IonStorm Posted February 11, 2019 Share Posted February 11, 2019 Sometimes the anticipated, but low probability events happens. This will make for some interesting science. https://www.nasa.gov/feature/goddard/2019/osiris-rex-mission-status-update Quote Link to comment Share on other sites More sharing options...
tater Posted February 11, 2019 Share Posted February 11, 2019 This seems like it's very interesting. I suppose any outgassing could throw small debris off the surface, but leave it still gravitationally bound to Bennu? Quote Link to comment Share on other sites More sharing options...
Piscator Posted February 11, 2019 Share Posted February 11, 2019 I remember reading that quite a bit of moon dust is suspended above the surface due to electrostatic effects. Maybe this could be similar? Quote Link to comment Share on other sites More sharing options...
insert_name Posted February 11, 2019 Share Posted February 11, 2019 2 hours ago, IonStorm said: Sometimes the anticipated, but low probability events happens. This will make for some interesting science. https://www.nasa.gov/feature/goddard/2019/osiris-rex-mission-status-update so these are point sources, could they be some sort of small moonlet? Quote Link to comment Share on other sites More sharing options...
IonStorm Posted February 17, 2019 Share Posted February 17, 2019 Nearly all (OTES is on the way) data from the cruise and Earth gravity assist has been released to the Planetary Data System. https://pds.nasa.gov/datasearch/subscription-service/SS-20190214.shtml To view the image files you need a FITS viewer, such as the free DS9 http://ds9.si.edu/. The best images have been released already, but if you like messing with raw data, here is your chance. If you didn't know, all NASA planetary missions publically release their data to PDS. Bennu data will be in future releases. Quote Link to comment Share on other sites More sharing options...
tater Posted February 18, 2019 Share Posted February 18, 2019 (edited) Edited February 18, 2019 by tater Quote Link to comment Share on other sites More sharing options...
IonStorm Posted February 18, 2019 Share Posted February 18, 2019 8 minutes ago, tater said: [snip] More on Detailed Survey: https://www.asteroidmission.org/wp-content/uploads/2018/06/SPP-Baseball-Diamond-Poster.pdf and 2:06-2:55 of: Quote Link to comment Share on other sites More sharing options...
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