Author Topic: ISRO General News  (Read 436094 times)

Offline vyoma

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Re: ISRO General News
« Reply #1020 on: 07/01/2022 09:39 pm »
Updates on Kulasekarapattinam launch pad from PSLV C53 post-launch press conference (at 16:50): Land acquisiton going well. Almost 2000 acres of land has been acquired. Area where the launch pad would be built is in ISRO's custody. Launch pad and facility design completed.
 


Offline vyoma

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Re: ISRO General News
« Reply #1021 on: 07/07/2022 03:40 pm »
https://timesofindia.indiatimes.com/india/army-now-wants-a-small-satellite-to-train-its-signals-officers/articleshow/92729868.cms

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Army now wants a small satellite to train its Signals officers

The Army on Thursday issued a request for information (RFI) to Indian companies for designing, developing and fabricating the communication satellite, which will be launched by the Polar Satellite Launch Vehicle (PSLV) of Isro.

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“The MCTE is planning to launch a small form factor student satellite with communication payload for training purpose as we need to train our officers on various aspects of space technology in general and about satellite communication in specific,” it added.

“It will also include establishment and operation of an earth station, accessing, monitoring and controlling of the satellite to ensure we have a pool of trained manpower available to take on the requirement of planning and providing satellite communication for future,” it said.

Offline vyoma

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Re: ISRO General News
« Reply #1022 on: 07/09/2022 12:51 am »
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We present here a low-cost Raspberry Pi (RPi)-based star sensor StarberrySense using commercial-off-the-shelf (COTS) components, developed and built for applications in small satellites and CubeSat-based missions. A star sensor is one of the essential instruments onboard a satellite for attitude determination. However, most commercially available star sensors are expensive and bulky to be used in small satellite missions. StarberrySense is a configurable system -- it can operate as an imaging camera, a centroiding camera, or as a star sensor. We describe the algorithms implemented in the sensor, its assembly and calibration. This payload was selected by a recent Announcement of Opportunity call for payloads to fly on the PS4-Orbital Platform by the Indian Space Research Organization (ISRO).


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In this paper, we have presented the design and development of StarberrySense, a low-cost star sensor based on Raspberry Pi Zero. The star sensor was assembled, aligned, calibrated and tested in-house. A computationally-efficient algorithm has been implemented and tested against the real sky conditions, and the results were favourably compared with obtained values from Astrometry.net. The thermal-vacuum test for the star sensor was completed successfully, along with the vibration test as per PSLV launch requirements. The StarberrySense was selected by the recent Announcement of Opportunity call for payloads to fly on the PS4-Orbital Platform by ISRO. PS4- Orbital Platform is an innovative use of the spent PS4 stage (fourth stage of the PSLV) as it has standard interfaces/packages for power and telemetry and can be stabilized. Thus, it can carry the scientific payloads to perform scientific experiments for up to 6 months in LEO. We are preparing the payload for flight before the end of 2022 on board the ISRO PSLV stage-4 platform.
Further improvements in the next version of the StarberrySense include an up-gradation of the hardware processing capability with the newer Rpi Zero 2 as well as reduction in form factor and weight of the payload. In addition to that, an improvement in the optics is envisaged to enhance the light collection area and thereby reducing the exposure time.

https://arxiv.org/abs/2207.03087
« Last Edit: 07/09/2022 12:54 am by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1023 on: 07/09/2022 10:22 pm »
VSSC, ISRO is organizing few events, talks and competitions on the occasion of International Moon Day on July 20th 2022. More info here: https://www.moondayvssc.com/

Offline vyoma

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Re: ISRO General News
« Reply #1024 on: 07/13/2022 08:28 am »
"Space Research in India" report for the period July 2020 – December 2021: https://cosparhq.cnes.fr/assets/uploads/2022/07/India-2022_Space-Research-in-India-Book-WEB-Version-09-07-22_compressed.pdf

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A Report of the Indian National Committee for Space Research (INCOSPAR), Indian National Science Academy (INSA), Indian Space Research Organisation (ISRO)

For the 44 th COSPAR Scientific Assembly, 16 July – 24 July 2022, Athens, Greece

Offline vyoma

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Re: ISRO General News
« Reply #1025 on: 07/13/2022 09:13 am »
From "Space Research in India" 2020-2021 report here:

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X-ray Pulsar based Deep Space Navigation
RRI has carried out preliminary design studies for development of an X-ray pulsar based navigation system. A proposal for development of a prototype was submitted to ISRO.

Offline vyoma

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Re: ISRO General News
« Reply #1026 on: 07/13/2022 06:57 pm »
https://timesofindia.indiatimes.com/city/nagpur/solar-grp-gives-boosters-for-brahmos-and-pslv/articleshow/92836824.cms

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Nagpur: The Solar Groups of Nagpur has emerged as the first indigenous supplier of boosters for the Brahmos missiles. The group’s company would also be delivering the first batch of strap-on boosters to the Indian Space Research Organization (ISRO) on July 14.

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In another development, EEL would be delivering the first batch of strap-on boosters to Indian Space Research Organization (ISRO) on July 14. As the name goes, these boosters are strapped to the Polar Satellite Launch Vehicles (PSLV). These are improved versions of strap-on boosters as compared to those already used by ISRO. The new components can enable PSLVs to carry a substantially enhanced payload, said sources.

Offline vyoma

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Re: ISRO General News
« Reply #1027 on: 07/14/2022 02:39 am »
Will there be a flag hoisting in space on POEM? Or, is it something related to SSLV?

https://twitter.com/Chethan_Dash/status/1542120914942595072
« Last Edit: 07/14/2022 02:40 am by vyoma »

Offline TheVarun

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Re: ISRO General News
« Reply #1028 on: 07/14/2022 11:28 am »
^
Nice, but I hope it's something more significant than a sound and light show, or illumination of the sky( impressive as these are) by ISRO.  It really should be an announcement of an impending major launch like an unmanned Gaganyaan, or an actual launch on that day- SSLV-D1 is scheduled by the end of July, but if it's launched on August 15th successfully, probably the delay will be excused :)

Offline vyoma

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Re: ISRO General News
« Reply #1029 on: 07/20/2022 04:42 pm »
https://pib.gov.in/PressReleseDetail.aspx?PRID=1843088

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In a written reply to a question in the Lok Sabha today, Dr Jitendra Singh said, communication satellites viz. GSAT-8, GSAT-10, GSAT-12R (CMS-01), GSAT-14, GSAT-15, GSAT-16, GSAT-17, GSAT-18, GSAT-30 and GSAT-31 have been transferred at a written down value of Rs 4697.60 crores against issue of equity to Government of India, with 01.04.2021 as the effective date of transfer.

Offline vyoma

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Re: ISRO General News
« Reply #1030 on: 07/23/2022 08:23 pm »
ISRO Space Transportation System (STS) roadmap  [2021].
« Last Edit: 07/23/2022 10:56 pm by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1031 on: 07/23/2022 08:27 pm »
Almost 80% of PSLV is already being produced by Indian industries. PSLV full privatization is ongoing.

Offline vyoma

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Re: ISRO General News
« Reply #1032 on: 07/23/2022 10:53 pm »
ISRO development of Radioisotope Heater Unit (RHU) and Radioisotope Thermoelectric Generator (RTG) in collaboration with Bhabha Atomic Research Centre (BARC) [Nov 2021]:
1) Completed development of 1W RHU, flight demonstration planned in future missions.
2) Planning to develop 5W RTG.

Source:

« Last Edit: 07/23/2022 10:54 pm by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1033 on: 07/23/2022 10:57 pm »
Experiments planned using PS4 Orbital Experiment Platform (POEM) [Nov 2021]:
1) Tethered debris capture.
2) Rendezvous and capture.
3) Satellite re-fuelling.


QuantESS payload will be tested on PS4 Orbital Experiment Module (POEM) in near future:
1) Quantum entanglement.
2) Quantum Key Distribution (QKD).
3) Evaluation of Quantum Receiver.

« Last Edit: 07/23/2022 11:01 pm by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1034 on: 07/27/2022 05:43 pm »
Transformation of Indian Space Sector - session by S. Somanath,  Chairman ISRO [27 Jul 2022]:
- Growth of Space enterprise in India
- Space economy projections for 2047 and India's market share in global space economy
- ISRO's role in enabling private space enterprise in India

« Last Edit: 07/27/2022 05:46 pm by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1035 on: 07/30/2022 08:41 am »
VSSC, ISRO recently put out a tender for fabrication and supply of PSLV IS3/4 (PS3-PS4 inter stage) [02 Jun 2022]: https://www.vssc.gov.in/assets/img/TENDERS/2022TENDERS/PT05070622.pdf

Looks like a PSLV assembly is in progress.

Offline vyoma

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Re: ISRO General News
« Reply #1036 on: 08/03/2022 04:58 pm »
https://pib.gov.in/PressReleseDetail.aspx?PRID=1847770

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Union Minister Dr Jitendra Singh says, six start-ups were selected and supported by ISRO with a grant-in-aid of maximum of Rs 50 lakhs each in areas like geo spatial information, propulsion and Robotics/ AR/VR

Union Minister of State (Independent Charge) Science & Technology; Minister of State (Independent Charge) Earth Sciences; MoS PMO, Personnel, Public Grievances, Pensions, Atomic Energy and Space, Dr Jitendra Singh today informed that six start-ups were selected and supported by ISRO with a grant-in-aid of maximum of Rs 50 lakhs each in areas like geo spatial information, propulsion and Robotics/ AR/VR.

In Reply to a question in the Lok Sabha, Dr Jitendra Singh said, ISRO along with Atal Innovation Mission (AIM), NITI Aayog launched ANIC-ARISE-1.0 program that aims to seek, select, support and nurture technology-based innovations that solve sectoral challenges of national importance. The Minister said that twenty-Four start-ups submitted their proposals, out of which six start-ups were selected and supported with a grant-in-aid of maximum of Rs 50 lakhs each.

ANIC-ARISE-1.0 has following three space sector challenges to get project proposals from start-ups: (i) geo spatial information, (ii) propulsion and (iii) Robotics/ Augmented Reality/Virtual Reality.

ANIC-ARISE-2.0 has been launched with four space sector challenges: (i) GIS solutions, (ii) Propulsion, (iii) Navigation & (iv) AI/ML modelling for space applications, seeking project proposals from start-ups in these areas. Selected start-ups will be supported with a grant-in-aid of maximum of INR 50 lakhs each.

Following startups were shortlisted to receive grants as per: https://aim.gov.in/pdf/ARISE_1.0_provisional_selection.pdf
SatSure Analytics India Pvt Ltd - https://www.satsure.co/
Satyukt Analytics Pvt Ltd - https://satyukt.com/
Numer8 Analytics Pvt Ltd - https://www.numer8.in/
Bellatrix Aerospace Pvt Ltd - https://bellatrix.aero/
Skyroot Aerospace Pvt Ltd - https://skyroot.in/
Digantara Research And Technologies Pvt Ltd - https://www.digantara.co.in/
Vashishtha Research OPC Pvt Ltd - https://www.vashishtha-research.com/

There are 7 companies in this list. Not sure which did not get the grant.
« Last Edit: 08/04/2022 04:41 am by vyoma »

Offline vyoma

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Re: ISRO General News
« Reply #1037 on: 08/04/2022 06:48 am »
ISRO has issued an Expression-of-Interest for manufacturing 110 spacecraft propellant tanks, 30 PS4 propellant tanks along with 30 sets (i.e., 60 nos.) of propellant acquisition system (PAS) over a period of 5 years using it's Integrated Titanium Alloy Propellant Tank Production Facility at ISRO Tumkur campus in the state of Karnataka. EoI document [28 July 2022]: https://new.isro.gov.in/media_isro/pdf/Tenders/2022/goco-1.pdf

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“Expression-of-Interest is invited from aerospace manufacturing Indian Industries for the operation of Integrated Titanium alloy Propellant Tank Production Facility (ITPF) being established by LPSC at Tumakuru campus (60 kms from Bangalore), Karnataka for the production of propellant tanks for various projects of ISRO on Government Owned Company Operated (GOCO) model.”


ISRO started building Integrated Titanium Alloy Propellant Tank Production Facility at its Tumkur campus back in 2019. Looks like they're now looking for an industry partner to start manufacturing in this new facility.

https://twitter.com/Shashi2908944/status/1093147950023434241
« Last Edit: 08/04/2022 08:49 am by vyoma »

Offline TheVarun

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Re: ISRO General News
« Reply #1038 on: 08/04/2022 12:23 pm »
Vyoma, you know quite a lot about the developments and indigenisation/innovation at ISRO. Were propellant tanks imported at one time for one or more of the stages, or one or more of the satellites. Or were they made on contract in India. And they are now coming into production.

Offline vyoma

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Re: ISRO General News
« Reply #1039 on: 08/04/2022 05:37 pm »
Vyoma, you know quite a lot about the developments and indigenisation/innovation at ISRO. Were propellant tanks imported at one time for one or more of the stages, or one or more of the satellites. Or were they made on contract in India. And they are now coming into production.



Propellant tanks are manufactured by HAL and few other companies.

From Annual Report 2015-16:
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Tankages and structure fabrication has been progressing well at ISRO’s work centre at public sector aerospace industry located at Bengaluru. PS2, PS4, GS2, L40 and L110 stage propellant tanks, feed lines and water tanks were fabricated by the industry. The above industry is also involved in realising the propellant tanks and structures for CUS and C25 projects. Public sector aerospace industry at Thiruvanathapuram realised the L40 propellant tanks, L40 water tank, PS2 clams, RFDS tubes, L40 feed lines and stage and tibia, PS1 SITVC tanks. The augmentation of GSLV Mk-III tankage production facility is progressing well

From Annual Report 2016-17:
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Production and supply of PS2 & PS4 propellant tanks and Integrated L40 liquid stages for PSLVs are continued with Aerospace Division of HAL

And, from Annual Report 2018-19:
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Aluminium Alloy (AA 2219) Tank for PS4: Two PS4 tanks L1.6 & L2.5 designed and realised and design validated

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Production of Vikas engines, Cryogenic engines, PS4/RCT engines, PS4 RCS thrusters, propellant tanks, water tanks and stage interface elements continued through industry to meet the mission requirements. Aluminium alloy (AA2219) PS4 propellant tanks (2 nos.) were realized & qualified for use in PS4 stage as part of reducing the cost as well as meeting the enhanced launch frequency.

However, Titanium sponge required for propellant tank manufacturing were being imported earlier. This was indigenized in 2015 with the commissioning of Indigenous Titanium Sponge Plant: https://www.isro.gov.in/indigenous-titanium-sponge-plant-operational

As an aside, looks like ISRO tried out Aluminium alloy tank for PS4 in 2018-19. But, they still continue to be using Titanium.
« Last Edit: 08/04/2022 06:45 pm by vyoma »

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