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#40 by catdlr on 18 Feb, 2024 15:31
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https://twitter.com/Peter_J_Beck/status/1759249413200072975Quote
100% mission success. Big day for the GNC team with perfect argument of perigee targeting with 2 precise Curie burns in quick succession to allow for @astroscale_HQ to rendezvous.
8:12 AM · Feb 18, 2024 -
#41 by catdlr on 18 Feb, 2024 15:31
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https://twitter.com/TylerG1998/status/1759246994248245751Quote
#OnCloserInspection, #RocketLab grabs their 2nd success of 2024. 👍
Updated orbital launch count as of Feb. 18:
Earth 🌎 — 34
USA 🇺🇸 — 18
China 🇨🇳 — 8
Iran 🇮🇷 — 2
Russia 🇷🇺 — 2
Japan 🇯🇵 — 2
India 🇮🇳 — 2 -
#42 by catdlr on 18 Feb, 2024 15:32
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#43 by catdlr on 18 Feb, 2024 15:37
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That's what I can scrape up from social media. This reminds me of the days I used to cover Sea Launch, there was no live stream and no NSF coverage, I knew someone on board the control ship and he was sending (old style) Twitter messages that I re-post on NSF. Those were the days.
Tony Out. -
#44 by catdlr on 19 Feb, 2024 02:30
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This post contains a short video
https://twitter.com/RocketLab/status/1759269717137842603QuoteThere it goes! 🛰️👋
ADRAS-J is now in orbit, ready to start its mission of rendezvousing with an aging piece of space debris and observing it closely to determine whether it can be deorbited in the future.
Proud to be part of this innovative
@astroscale_HQ
mission studying ways to clean up space. -
#45 by catdlr on 19 Feb, 2024 17:52
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https://twitter.com/TSKelso/status/1759633476897415562Quote
CelesTrak has GP data for 3 objects from the launch (2024-034) of ADRAS-J atop an Electron rocket from Mahia Peninsula on Feb 18 at 1452 UTC: https://spacenews.com/electron-launches-astroscale-inspection-satellite/. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2024-034.
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#46 by catdlr on 19 Feb, 2024 22:52
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https://twitter.com/haygenwarren/status/1759721715905528086Quote
Last week, the ADRAS-J mission launched with its sights set on an inactive H-IIA upper stage in orbit. ADRAS-J will rendezvous with the stage, demonstrating future satellite servicing techniques.
Martin Smith with more on ADRAS-J and space debris ⬇️
SOURCE -
#47 by catdlr on 21 Feb, 2024 00:20
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https://twitter.com/heospace/status/1760075578529771823Quote
This is an image of a rocket body taken by a space-based sensor using HEO Inspect.
Non-Earth imaging aids in crafting informed strategies to reduce uncertainties of space objects.
Read our paper to see how NEI is contributing to space sustainability: https://heospace.com/blog-posts/non-earth-imaging-for-space-sustainability-and-space-debris-management
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#48 by FutureSpaceTourist on 11 Mar, 2024 12:08
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https://twitter.com/astroscale_hq/status/1767173635045732845Quote
🛰️ ADRAS-J Update: Our spacecraft remains in good health and operations are going as planned. Both our teams in Japan and UK will continue to make scheduled thruster burns to ensure a safe approach towards the rocket upper stage over the coming weeks.
#ShowtheWayADRASJ
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#49 by GewoonLukas_ on 26 Apr, 2024 08:47
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Quote
Astroscale Unveils World’s First Image of Space Debris Captured through Rendezvous and Proximity Operations
April 26th, 2024
Astroscale Japan Inc. (“Astroscale Japan”), a subsidiary of Astroscale Holdings Inc. (“Astroscale”), a market leader in satellite servicing and long-term orbital sustainability across all orbits, has unveiled the first publicly released image of space debris captured through rendezvous and proximity operations (RPO). The image was taken by its commercial debris inspection demonstration satellite, Active Debris Removal by Astroscale-Japan (ADRAS-J), from several hundred meters behind the space debris, a rocket upper stage. The unprecedented image marks a crucial step towards understanding and addressing the challenges posed by space debris, driving progress toward a safer and more sustainable space environment.
[...]
In the next phase of the mission, ADRAS-J will attempt to capture additional images of the upper stage through various controlled close approach operations. The images and data collected are expected to be crucial in better understanding the debris and providing critical information for future removal efforts.
[...]
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#50 by Steven Pietrobon on 01 May, 2024 06:44
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Interesting to see that the orange spray on foam insulation (SOFI) has turned brown in colour.
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#51 by edkyle99 on 04 May, 2024 01:54
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Interesting to see that the orange spray on foam insulation (SOFI) has turned brown in colour.
I bet a lot of that is heating during ascent. I remember the rocket cam videos of Shuttle External Tanks.
- Ed Kyle -
#52 by Comga on 26 May, 2024 02:58
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Interesting to see that the orange spray on foam insulation (SOFI) has turned brown in colour.
A prelaunch image of an H2A second stage shows the tank to be painted white, as seen below, and a recent image on orbit, shown a few posts back by HEO (labeled "panchromatic" but clearly in color) showed it to be white and glossy, not orange and diffuse.
So it started white, not orange, and it could now be brown or white.
Color is difficult, and changes come from aging of objects, exposure and recording effects, and misrepresentation when being displayed.
We really don't know what the change has been.
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#53 by Galactic Penguin SST on 26 May, 2024 03:22
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Interesting to see that the orange spray on foam insulation (SOFI) has turned brown in colour.
A prelaunch image of an H2A second stage shows the tank to be painted white, as seen below, and a recent image on orbit, shown a few posts back by HEO (labeled "panchromatic" but clearly in color) showed it to be white and glossy, not orange and diffuse.
So it started white, not orange, and it could now be brown or white.
Color is difficult, and changes come from aging of objects, exposure and recording effects, and misrepresentation when being displayed.
We really don't know what the change has been.
Actually most H-IIA 2nd stages are not painted white (including the one being inspected); only a selected few are painted to control boil-off for extended mission durations. -
#54 by edzieba on 28 May, 2024 11:53
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Launch footage indicate the upper stage was painted white, at least at time of liftoff.
'Colour' is such a messy concept to start with that illumination and choice of camera filters will produce wildly different results, and then there's processing on top of that. Without information on HEO's or Astrascale's cameras and what their spectral responses are, it's difficult to determine what the 'true colour'* of the stage is.
* Which can at best be agreed upon as being if the object in question was observed by an average human eye under D65 standard illumination. -
#55 by GewoonLukas_ on 14 Jun, 2024 07:41
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Quote
Historic Approach to Space Debris: Astroscale’s ADRAS-J Closes in by 50 Meters
June 14th, 2024
[...] Active Debris Removal by Astroscale-Japan (ADRAS-J), has achieved another unprecedented milestone for a commercial company. ADRAS-J successfully completed the safe and controlled approach to an unprepared space debris object – a rocket upper stage – to a relative distance of approximately 50 meters, collecting further images and data while maintaining a controlled fixed point relative position from the upper stage. This second image released from the mission, taken in May, follows the first image released on April 26, captured from several hundred meters behind the debris.
[...]
In the next phase, ADRAS-J will attempt to capture additional images of the upper stage through various controlled close approach operations. The images and data collected are expected to be crucial in better understanding the debris and providing critical information for future removal efforts.
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#56 by eeergo on 14 Jun, 2024 11:40
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Beautiful reflections of the Earth passing by below in this animation:
https://twitter.com/SegerYU/status/1801535060656721983 -
#57 by edzieba on 14 Jun, 2024 15:39
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Beautiful reflections of the Earth passing by below in this animation:
Non-twitter video:
...
https://www.youtube.com/watch?list=TLGG7Y74wWvb_u0xNDA2MjAyNA&v=W7dtphs105E -
#58 by jebbo on 15 Jun, 2024 06:29
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Shouldn't all the post-launch stuff really be in the Space Science section rather than here?
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#59 by Galactic Penguin SST on 15 Jun, 2024 07:08
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Shouldn't all the post-launch stuff really be in the Space Science section rather than here?
Well this is a technology demonstration mission so I don’t see why it needs a separate thread there; updates should be sparse enough to not need one anyway.