SPADEX

Short description: Indian space mission

Space Docking Experiment

Operator| ISRO
Spacecraft properties
Bus| IMS
Manufacturer| ISRO
Start of mission
Launch date| Q3 2024 (planned) [1]
Rocket| PSLV
Launch site| Satish Dhawan Space Centre
Contractor| ISRO

SPADEX or Space Docking Experiment is a twin spacecraft mission being developed by the Indian Space Research Organisation (ISRO) to mature technologies related to orbital rendezvous, docking, formation flying, with scope of applications in human spaceflight, in-space satellite servicing and other proximity operations.[2]

SPADEX campaign would consist of two IMS class-2 class (200 kg) satellites, one would be Chaser which will also be equipped with a remote robotic arm ,and other being Target and both would be launched as co-passengers or auxiliary payloads.[3][4] Both spacecraft would be injected into slightly different orbits.[5]

Space Docking Experiment is currently scheduled for launch from Satish Dhawan Space Centre aboard a dedicated Polar Satellite launch Vehicle.flight by the end of 2024[6][7][8]

## Contents

* 1 Objectives
* 2 Status
* 3 See also
* 4 References

## Objectives

* Autonomous rendezvous and docking
* Controlling one spacecraft with Attitude Control System of other spacecraft while in docked configuration.[2]
* Formation flying
* Remote robotic arm operations[9][10][11][needs update]

## Status

With preliminary studies done in 2016,[12] Space Docking Experiment was approved by the Government of India with an initial funding of ₹10 crore cleared in 2017.[13] In June 2019, ISRO was looking for proposals to study remote robotic arm operation, rendezvous and docking related technologies on its PSLV fourth stage (PS4) orbital platform.[14]

As of July 2022[update], Space Docking Experiment has been sanctioned ₹124.47 crore (equivalent to ₹124 crore or US$17 million in 2023) in funding and is aiming for launch in third quarter of 2024.

## See also

* ETS-VII or KIKU-7, also known as Orihime/Hikoboshi
* Kosmos 186 and Kosmos 188
* Orbital Express
* Robotic Refueling Mission

## References

1. ↑ "Government Of India, Department Of Space, Lok Sabha Unstarred Question No. 556 to be answered on Wednesday, July 20, 2022 about 'Private Participation In Space'". 20 July 2022. http://164.100.24.220/loksabhaquestions/annex/179/AU556.pdf.
2. ↑ 2.0 2.1 "Department of Space Annual Report 2018-19". Department of Space. 27 May 2019. https://www.isro.gov.in/sites/default/files/annualreport2018-19.pdf.
3. ↑ "Department of Space Outcome Budget 2013-14". Department of Space. https://www.isro.gov.in/sites/default/files/pdf/budget/Outcome budget2013-14.pdf.
4. ↑ "Dual-Lever Rigidisation Mechanism With A Self-Hold Down Feature For Autonomous Docking Of Spacecraft". 9 September 2022. https://ipindiaservices.gov.in/.
5. ↑ Chacko, T.; B P, Dakshayani; Vighnesam, N.; Gopinath, N.S. (1 October 2012). "Relative state vector generation algorithm for on board navigation for rendezvous docking experiment". 63rd International Astronautical Congress. 7. pp. 5313–5316. https://www.researchgate.net/publication/290556133.
6. ↑ Ramesh, M. (1 October 2019). "ISRO's space docking experiment to happen next year, says Sivan". The Hindu BusinessLine. https://www.thehindubusinessline.com/news/science/isro-to-demonstrate-docking-of-satellites-next-year-says-sivan/article29558585.ece.
7. ↑ Mehta, Jatan (27 June 2019). "5 Unique Space Science Missions That ISRO Will Be Flying in the Near Future". The Wire. https://thewire.in/science/space-science-aditya-isro-xposat-nisar.
8. ↑ Singh, Surendra (3 October 2019). "Isro to hold space-docking experiment next year, a step towards setting up space station". The Times of India. https://timesofindia.indiatimes.com/india/isro-to-hold-space-docking-experiment-next-year-a-step-towards-setting-up-space-station/articleshow/71415073.cms.
9. ↑ "Development of end effectors for spacecraft berthing and sample retrieval". Department of Science and Technology. https://www.indiascienceandtechnology.gov.in/research/development-end-effectors-spacecraft-berthing-and-sample-retrieval.
10. ↑ "RESPOND Basket 2021". Indian Space Research Organisation. https://www.isro.gov.in/sites/default/files/article-files/capacity-building/supported-areas-of-research/respond_basket_book_-_final-1.pdf.
11. ↑ "Research Areas in Space 2021". Indian Space Research Organisation. https://www.isro.gov.in/sites/default/files/article-files/capacity-building/supported-areas-of-research/research_areas_in_space-1.pdf.
12. ↑ Kumar, Chethan (2 May 2017). "ISRO: Isro project that can aid refuel, repair of satellites in space gets push". The Times of India. https://timesofindia.indiatimes.com/india/isro-project-that-can-aid-refuel-repair-of-satellites-in-space-gets-push/articleshow/58467493.cms.
13. ↑ "Detailed Demands for Grants of Department of Space for 2018-2019". Indian Space Research Organisation. https://www.isro.gov.in/sites/default/files/article-files/right-to-information/ddg_2018_-2019_-_final.pdf.
14. ↑ "Announcement of Opportunity (AO) for Orbital platform: An avenue for in-orbit scientific experiments". Indian Space Research Organisation. 15 June 2019. https://www.isro.gov.in/sites/default/files/orbital_platform-_ao.pdf.

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