MASCOT landing on Ryugu, 3 October 2018 |
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MASCOT landing on Ryugu, 3 October 2018 |
 Oct 2 2018, 04:07 AM
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#1
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 Senior Member  Group: Members Posts: 1454 Joined: 26-July 08 Member No.: 4270  |
The Japanese Hayabusa 2 twitter account reports that the spacecraft has begun descending toward Ryugu in preparation to deploy the MASCOT lander. Nothing on the English twitter as of the time of this post.
https://twitter.com/haya2_jaxa/status/1046965970466746369 -------------------- -- Hungry4info (Sirius_Alpha)
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Oct 2 2018, 06:00 AM
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#2
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Newbie Group: Members Posts: 14 Joined: 30-September 14 Member No.: 7269 |
QUOTE (Hungry4info @ Oct 2 2018, 01:07 PM)  The Japanese Hayabusa 2 twitter account reports that the spacecraft has begun descending toward Ryugu in preparation to deploy the MASCOT lander. Nothing on the English twitter as of the time of this post. https://twitter.com/haya2_jaxa/status/1046965970466746369 English twitter account of HAYABUSA 2. https://twitter.com/haya2e_jaxa |
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Oct 2 2018, 06:12 AM
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#3
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Member Group: Members Posts: 282 Joined: 18-June 04 Member No.: 84 |
And the realtime images are back http://www.hayabusa2.jaxa.jp/en/galleries/onc/nav20181002/
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| Guest_mcmcmc_* |
Oct 2 2018, 12:02 PM
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#4
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Guests |
Follow #Hayabusa2 approach to #Ryugu for #MASCOT delivery in realtime!
https://programmi.000webhostapp.com/hayabus.../simulator.html Altitude logs: http://win98.altervista.org/hayabusa2/simu...r/hayabusa2.txt https://programmi.000webhostapp.com/hayabus...r/ONC_A-log.txt
Attached thumbnail(s)
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| Guest_mcmcmc_* |
Oct 2 2018, 03:39 PM
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#5
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Guests |
QUOTE (mcmcmc @ Oct 2 2018, 12:02 PM) Follow #Hayabusa2 approach to #Ryugu for #MASCOT delivery in realtime! https://programmi.000webhostapp.com/hayabus.../simulator.html Altitude logs: http://win98.altervista.org/hayabusa2/simu...r/hayabusa2.txt https://programmi.000webhostapp.com/hayabus...r/ONC_A-log.txt It appears from the simulator that from 1500 meters on, MINERVA rovers will start to be visible as 1 pixel bright objects in ONC-T. But we'll have to wait down to 400 meters to see them in ONC-W. ONC-T resolution is 10 times ONC-W, so 1 pixel in ONC-W is 10 pixel in ONC-T. |
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Oct 3 2018, 12:19 AM
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#6
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 Merciless Robot Group: Admin Posts: 8790 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Spaceflight Now providing live coverage of MASCOT's landing here.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Oct 3 2018, 01:39 AM
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#7
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Senior Member Group: Members Posts: 1454 Joined: 26-July 08 Member No.: 4270 |
The last three frames show a persistent very bright dot on the surface. Possible MINERVA-II1 rover or protective drum?
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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Oct 3 2018, 02:22 AM
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#8
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Solar System Cartographer Group: Members Posts: 10258 Joined: 5-April 05 From: Canada Member No.: 227 |
Sorry, no - the Minerva area is on the other side of Ryugu. The white spot might be added to the images to indicate the descent target point (I'm only guessing) or it could be a naturally reflective object (there are several of them in earlier images). When somebody posted about the sizes of Minerva hardware in pixels, I think they were really only talking about image resolution, not whether the items would be visible, because they are not near the Masot landing area. For one thing, Mascot is targeted south of the equatorial ridge, Minerva was targeted north of it.
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 PDF: 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) |
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Oct 3 2018, 03:04 AM
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#9
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 Member Group: Members Posts: 822 Joined: 3-June 04 From: Brittany, France Member No.: 79 |
Identification of some rocks on photos taken by Hayabusa2 on 2018/10/03 at 00h41 and 01h12 UTC with estimated position of Hayabusa2 shadow
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Oct 3 2018, 03:15 AM
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#10
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Merciless Robot Group: Admin Posts: 8790 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Separation confirmed per Spaceflight Now!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Oct 3 2018, 03:25 AM
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#11
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 Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
QUOTE (nprev @ Oct 3 2018, 04:15 AM) Separation confirmed per Spaceflight Now! Tweet confirms it. |
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Oct 3 2018, 04:15 AM
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#12
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Member Group: Members Posts: 822 Joined: 3-June 04 From: Brittany, France Member No.: 79 |
Identification of rocks on the picture taken at 1h46 UTC with shadow of Hayabusa 2 as a red cross. The shadow is probably shifted out of the map on the right since the map is missing a vertical band of latitude on 340° and 360°.
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| Guest_mcmcmc_* |
Oct 3 2018, 07:48 AM
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#13
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Guests |
My recording of the delivery operations based on JAXA data (altitude in meters):
CODE Alt Generated at (GMT) Received At (GMT)) 101 2018-10-03 01:47:38 2018-10-03 02:05:47 47 2018-10-03 01:58:18 2018-10-03 02:16:27 - Mimimum altitude for 4 minutes 134 2018-10-03 02:02:02 2018-10-03 02:20:10 - Hayabusa 2 rises again. Full recording of descent: https://programmi.000webhostapp.com/hayabus...r/ONC_A-log.txt There are multiple lines for same data, but if you set up a "sparse data" chart in Excel, multiple lines will result is same point be drawn at same coordinate, so you'll just see one point. Press conference video (no links to press release yet): https://www.youtube.com/watch?v=O3WNAg5Zfvs It looks like national broadcasting company NHK created a simulated realtime video based on JAXA data during descent, but it was live, and I can't find the recording now: http://www.nhk.or.jp/special/space/#/english |
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Oct 3 2018, 07:58 AM
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#14
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 Member Group: Members Posts: 102 Joined: 29-January 10 From: Poland Member No.: 5205 |
-------------------- Adam Hurcewicz from Poland
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Oct 3 2018, 08:43 AM
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#15
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Member Group: Members Posts: 822 Joined: 3-June 04 From: Brittany, France Member No.: 79 |
First image of MASCOT released, showing the landing site from an altitude of 40m:
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