SPaDEx Chaser, SPaDEx Target, POEM-4 – PSLV-C60 CA – Шрихарикота FLP – 30.12.2024 16:30 UTC

[zandr]

https://x.com/ISROSight/status/1875480287490068751

ISRO InSight  @ISROSight
The inaugural space robotic arm of India, RRM-TD aka Walking Robotic Arm, is actively functioning on #POEM4!
This is a significant achievement for ISRO's upcoming project Bharatiya Antariksha Station (BAS).

·
Key Points: RRM-TD - Walking Robotic Arm
1. Overview:
• RRM-TD (Relocatable Robotic Manipulator-Technology Demonstrator), also known as the Walking Robotic Arm, is India's first space robotic manipulator with walking capability.
• Developed by IISU (ISRO Inertial Systems Unit).

2. Specifications:
• 7 Degrees of Freedom (DoF).
• Performs inch-worm walking for relocation on the POEM-4 platform.

3. Features:
• Large Workspace: Supports in-orbit servicing with robotic manipulators.
• Key Components:
• Indigenous robotic joints and arm  controllers.
• Grappling mechanism and standardized power/data adaptors.
• Cameras for eye-in-hand operation.
• Advanced Software: Obstacle-aware motion planning with safety features on a high-compute processor.

4. Applications:
• Demonstrates end-on-end walking and robotic arm operations in microgravity.
• Enables vision-based 6DoF pose estimation and visual inspection of space structures.
• Facilitates robotic manipulation via visual servoing and compliance control.
• Harness-free operations using power and data grappling fixtures.
• Tele-operation and Digital Twin integration.

5. Objective:
• Acts as a precursor for technologies to be used in the Bharatiya Antariksh Station (BAS).

[zandr]

https://x.com/ISROSight/status/1875371220771992030

ISRO InSight  @ISROSight
𝗦𝗽𝗮𝗗𝗲𝗫 𝗠𝗶𝘀𝘀𝗶𝗼𝗻 𝗨𝗽𝗱𝗮𝘁𝗲:
SpaDeX A and SpaDeX B are now about 2 kilometres apart.

Аппараты сблизились до двух километров.

[Брабонт]

Трансляция стыковки:

https://www.youtube.com/live/UCs1UWAo2I0

[zandr]

https://x.com/isro/status/1876185193645834737

ISRO  @isro
Leaves have emerged!  VSSC's CROPS (Compact Research Module for Orbital Plant Studies) aboard PSLV-C60 POEM-4 achieves a milestone as cowpea sprouts unveil their first leaves in space.

Залиствился горошек.

[zandr]

ISRO  @isro
The SpaDeX Docking scheduled on 7th is now postponed to 9th.
The docking process requires further validation through ground simulations based on an abort scenario identified today.

Stay tuned for updates.

Стыковка перенесена на 9-ое.

[zandr]

https://x.com/isro/status/1876196202062156061

ISRO  @isro
Sharing SPADEX onboard video showcasing SDX02 launch restraint release & docking ring extension.
<короткое видео>

Вы не можете просматривать это вложение.Вы не можете просматривать это вложение. 
Репетиция.

[zandr]

На POEM-4 шевелится роборука.

Код Выделить Развернуть

https://www.youtube.com/watch?v=2Oy_F8TJZuY

https://www.youtube.com/watch?v=2Oy_F8TJZuY 1:48
ISRO India's first space robotic arm, is in action onboard POEM4 SpaDeX Mission
  Moter World
Developed by VSSC, the objective of this experiment is to demonstrate the capturing of tethered debris by a robotic manipulator using visual servoing and object motion prediction in the space environment. It also includes the demonstration of a parallel end-effector for object capture and manipulation. Upon successful demonstration of the first experiment, the robotic manipulator will be capable of capturing free-floating debris and refuelling tethered and free-floating spacecraft in future POEM missions.

[zandr]

Код Выделить Развернуть

https://www.youtube.com/watch?v=YtuE6m5qynw

https://www.youtube.com/watch?v=YtuE6m5qynw 0:53
Watch: ISRO shares timelapse video of leaves emerging in space | ISRO Mission | ISRO news
  Business Standard
ISRO tweets, "Watch the timelapse of leaves emerging in space! VSSC's CROPS (Compact Research Module for Orbital Plant Studies) experiment aboard PSLV-C60 captures the fascinating growth of cowpeas in microgravity"

[zandr]

https://x.com/ISROSpaceflight/status/1876642961204924499

ISRO Spaceflight  @ISROSpaceflight
After the successful completion of the CROPS experiment, ISRO has announced an upcoming CROPS-2 experiment!
While the goal of CROPS (now CROPS-1) was to demonstrate seed germination and plant growth till the 2 leaf stage, CROPS-2 will aim for sustained plant growth beyond 2 leaf stage.
CROPS-1 consisted of 8 cowpea seeds inside a sealed box in a temperature controlled environment. However, other environmental parameters such as O2 & CO2 concentration, relative humidity, and soil moisture were kept unregulated and were only passively measured.
CROPS-2 will involve active control of all the above-mentioned environmental factors to facilitate sustained plant growth.
Time-lapse video of the germination and growth of cowpea seeds in CROPS-1

За экспериментом CROPS-1 - прорастание семян без контроля среды, последует CROPS-2 - выращивание растений с контролем среды.
Однако, не понял: там же завтра или когда-нибудь потом?

[zandr]

https://x.com/isro/status/1876635405845414386

ISRO  @isro
 Watch the SpaDeX Docking Event Programme.
 Date: 9th January 2025
 Time: 8:00 AM onwards
 Watch live: https://youtube.com/live/UCs1UWAo2I0?feature=share

[zandr]

Код Выделить Развернуть

https://www.youtube.com/watch?v=UCs1UWAo2I0

https://www.youtube.com/watch?v=UCs1UWAo2I0
SPADEX Docking event programme
  ISRO Official
SPADEX Docking event programme
Date: 9th January 2025
Time: 8:00 AM onwards

Трансляция 9 января 05:30 мск.

[zandr]

https://x.com/ISROSight/status/1876981286188781827

ISRO InSight  @ISROSight
𝗦𝗽𝗮𝗗𝗲𝗫 𝗠𝗶𝘀𝘀𝗶𝗼𝗻 𝗨𝗽𝗱𝗮𝘁𝗲:
SpaDeX A and SpaDeX B are now about 400 metres apart.
Docking is scheduled for tomorrow from 8:00 AM IST onwards.
Stay tuned for updates...

[zandr]

https://x.com/isro/status/1877015368230650167

ISRO  @isro
While making a maneuver to reach 225 m between satellites the drift was found to be more than expected, post non-visibility period.
The planned docking for tomorrow is postponed. Satellites are safe.
Stay tuned for updates.

После периода невидимости, дрейф оказался больше ожидаемого.
Стыковка отложена.

[zandr]

ISRO  @isro
SpaDeX Docking Update:
The drift has been arrested and spacecrafts put in a slow drift course to move closer to each other. By tomorrow, it is expected to reach initialisation conditions.

Вернулись к режиму сближения. Уточнение завтра.

[zandr]

https://x.com/s2a_systems/status/1877993577378185244

s2a systems  @s2a_systems
This morning's SpaDeX update from South America. The estimated distance between the two spacecraft is ~500 m. Recorded at 2025-01-11, 07:59:08 UTC.

[zandr]

ISRO Spaceflight  @ISROSpaceflight
The two SpaDeX satellites have achieved an inter-satellite distance of 500 m and will now proceed towards 225 m waypoint!
This is the phase during which ISRO experienced issues last time around.

Вроде процесс пошёл.

[zandr]

ISRO  @isro
SpaDeX Status Update:
Arrested at Inter Satellite Distance (ISD) of 230 m, all sensors are being evaluated. Spacecraft's health is normal.

Выдерживается зависание на 230 м.

[zandr]

ISRO Spaceflight  @ISROSpaceflight
The SpaDeX satellites have achieved a distance of 230m. This is the closest they've been to each other since deployment!
Judging from their previous attempt, if everything goes right, the docking of the SpaDeX satellites can be expected to take place TOMORROW morning!

На завтра.

[zandr]

Однако
https://x.com/s2a_systems/status/1878159820777205992

s2a systems  @s2a_systems
The latest SpaDeX image from Australia. The distance between the two satellites on 2025-01-11 at 18:58:09 UTC was about 180 m.

[zandr]

ISRO  @isro  ·  4h
SpaDeX Docking Update:

At 15m we see each other clearer and clearer, we are just 50 feet away for an exciting handshake