Hayabusa2 MINERVA-II-1 operation, 20-21 September 2018 |
Hayabusa2 MINERVA-II-1 operation, 20-21 September 2018 |
Guest_mcmcmc_* |
Sep 28 2018, 04:47 PM
Post
#61
|
Guests |
They are perhaps like sunlight hoppers. Prof. Takashi Kubota, the designer of previous MINERVA-I rover on Hayabusa 1, on request kindly sent me the paper he published as chapter 6 of book "Intelligence for Space Robotics", titled, "Intelligent Rover with Advanced Mobility for Minor Body Surface Exploration". I asked him: QUOTE Dear professor Kubota, I am following MINERVA-II-1 rovers operations on Ryugu, but I cannot find much technical data about them. Can you suggest any link or paper where I can read some details? I would like to figure out which mobility system they use w.r.t. MINERVA-I , and if they are remotely or autonomusly operated. Are the two rovers identical? and his answer is: QUOTE The mobility of MINERVA-II on Ryugu is the same as MINERVA. MINERVA-II can hop by an inner torquer (motor). MINERVA-II can explore Ryugu autonomously. Two rovers are almost identical. Takashi But he does not specify if he's talking about rovers 1a/1b or rover 2, so... who knows?!? I guess I'll have to ask again. I wrote to kubota dot takashi at jaxa dot jp but can't remember in which page/document I found this. He has other emails: https://www.abdn.ac.uk/ims/research/microbi...ofiles/t.kubota http://robotics.isas.jaxa.jp/kubota_lab/en/people.html |
|
|
Sep 28 2018, 05:34 PM
Post
#62
|
|
Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
|
|
|
Guest_mcmcmc_* |
Sep 28 2018, 05:57 PM
Post
#63
|
Guests |
Is anybody able to figure out how to use Hugin panorama viewer/stitcher to convert a 125° fisheye to an equirectangular projection? There are also [...] I think I got something. Process: 1) Use Irfanview or any other editor to rotate the image to get an horizontal horizon 2) Launch Hugin 3) Import the single image specifying "circular fisheye" and "125°" as parameters 4) Click on last tab ("Assembler"? It's "Assemblatore" in italian) 5) Click on first button ("Calcola area inquadrata") to get new horizontal and vertical FOV 6) Click "assemble!" button 7) Copy the resulting image on your gyro-equipped Android phone 8) Open it using VR Media Player 9) Select "standard view". 10) Move around the phone to look around you, or select the cardboard icon and use any cardboard viewer. 11) Don't foget to dressup you spacesuit, it's cold up there! (and you'll feel like being there!) Examples: Becomes: Becomes: |
|
|
Sep 28 2018, 06:01 PM
Post
#64
|
||
Solar System Cartographer Group: Members Posts: 10151 Joined: 5-April 05 From: Canada Member No.: 227 |
That's very nice.
The merged image I posted above looked fine on my laptop, but when I saw it on a mobile device the colours were rather bizarre, so in case you saw it that way and thought I was re-living the 60s, here is a monochrome version. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
|
|
||
Guest_mcmcmc_* |
Sep 28 2018, 07:09 PM
Post
#65
|
Guests |
I don't know how much scientific it is... but amazing it is by sure! :-)
http://win98.altervista.org/hayabusa2/panomovie01.avi As above, look at it with cardboard and VR Player. Used VirtualDub to split into single frames, Hugin to reproject, VideoPad to get back into .AVI. |
|
|
Guest_mcmcmc_* |
Sep 29 2018, 10:13 AM
Post
#66
|
Guests |
Found an unofficial transcript/translation of 27/sep press conference:
https://lizard-isana.github.io/jspt/hy2_pre...2018_09_27.html Quotes: QUOTE Total number of the hop and distance of each hop: The 1A did 9 hops, and the 1B did 4 hops. The distance is 10-20m each. (Tetsuo Yoshimitsu, MINERVA-II1 Project Enginner /JAXA) QUOTE Names of rovers: There are 2 candidates, but it is secret yet. We’ll name on the basis of their movement. (Tetsuo Yoshimitsu, MINERVA-II1 Project Enginner /JAXA) * Ryugu rotation period is 7.6 hours, which means 3.16 Sols per EarthDay. * Rovers delivery happened at 21/09/2018 04.35 GMT . * Press conference was held 27/09/2018 04.30-05:30 GMT . * Difference: 6 days, 19 Sols |
|
|
Oct 1 2018, 08:43 AM
Post
#67
|
|
Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
QUOTE Hayabusa2 status (the week of 2018.09.24) This week, the MINERVA-II1 rovers that landed on the asteroid last week sent images from the asteroid surface. No regolith was seen in these images, only a shocking scenery of large and small boulders. On the other hand, the scenes of sunlight on the asteroid and the rover hopping were both very beautiful and dynamic. Next week is the deployment of the MASCOT lander. The decent operation is always a nervous time and we want to deliver the lander steadily and carefully. (Regolith: fine grain sediments). I didn't notice it at first, but the rover images show small pebbles and rocks, but little or no sand and dust |
|
|
Oct 1 2018, 09:04 AM
Post
#68
|
|
Member Group: Members Posts: 238 Joined: 15-January 13 Member No.: 6842 |
I didn't notice it at first, but the rover images show small pebbles and rocks, but little or no sand and dust I've also spotted that, looks very rubbly, like a comet's "rubble mantle". What happened to all the fine dust, maybe it fell in through the boulders and is somewhere below them? -------------------- Curiosity rover panoramas: http://www.facebook.com/CuriosityRoverPanoramas
My Photosynth panoramas: http://photosynth.net/userprofilepage.aspx...;content=Synths |
|
|
Oct 4 2018, 02:10 PM
Post
#69
|
|
Senior Member Group: Members Posts: 1074 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
Any news from the Minerva landers? Are they still working? I hope we get some more pictures.
|
|
|
Oct 5 2018, 05:20 AM
Post
#70
|
|
Junior Member Group: Members Posts: 23 Joined: 24-August 07 Member No.: 3405 |
A nuke would obliterate Ryugu. It is seemingly loosely cobbled together through and through.
|
|
|
Dec 13 2018, 11:23 AM
Post
#71
|
||
Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Tweet
'We’ve named our MINERVA-II1 rovers! Named for the symbol of the mythological Roman goddess, Minerva, Rover-1A and Rover-1B are now “Owl” and “Hibou” (horned own in French).' link: https://twitter.com/haya2e_jaxa/status/1073159319204421632 |
|
|
||
Dec 13 2018, 09:31 PM
Post
#72
|
|
Senior Member Group: Members Posts: 1419 Joined: 26-July 08 Member No.: 4270 |
There are new images from MINERVA-II1.
I've found these four here. Are there any more anywhere? https://phys.org/news/2018-12-photos-japan-...vers-rocky.html Additionally, from that source, QUOTE The Japan Aerospace Exploration Agency said Thursday the two solar-powered rovers have become inactive and are probably in the shade, but are still responding to signals after three months, exceeding their projected life of several days.
-------------------- -- Hungry4info (Sirius_Alpha)
|
|
|
Dec 14 2018, 03:58 PM
Post
#73
|
||
Member Group: Members Posts: 547 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
That's very nice. The merged image I posted above looked fine on my laptop, but when I saw it on a mobile device the colours were rather bizarre, so in case you saw it that way and thought I was re-living the 60s, here is a monochrome version. Phil In Phil's post above, does anyone else notice the apparent light-colored layer running through the black boulder just right of centre ? Is it actually layering in the rock? |
|
|
||
Guest_Steve5304_* |
Dec 20 2018, 02:45 PM
Post
#74
|
Guests |
In Phil's post above, does anyone else notice the apparent light-colored layer running through the black boulder just right of centre ? Is it actually layering in the rock? Interesting catch. Really hard to tell with the image if its a reflection or some sort of camera artifact. Its also not impossible for a rock to be layered on a asteroid i suppose. Rock could of came from anywhere. |
|
|
Feb 7 2019, 02:06 AM
Post
#75
|
|
Senior Member Group: Members Posts: 1419 Joined: 26-July 08 Member No.: 4270 |
The December 2018 press conference pdf, link (pdf), had a number of new images that we had not seen before, that I didn't see mentioned here, including some that were taken on Sols as high as 113.
-------------------- -- Hungry4info (Sirius_Alpha)
|
|
|
Lo-Fi Version | Time is now: 25th April 2024 - 12:38 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |