ISRO Small Satellite Launch vehicle (SSLV) : Updates

Tender out of SSLV MLP : https://www.isro.gov.in/sites/default/files/tenders/pt-_ro_03_-_01-_12041.pdf

Here are the drawings :
1568040719198.png

1568040750093.png
1568040770268.png
1568040787035.png
1568040801087.png
 
Few reports from regional media indicate new SSLV launch site at Kulasekarapattinam is going ahead.

Following report suggests ₹600 crore have been allocated for the SSLV launch site at Kulasekarapattinam.

తమిళనాడులో ‘చిన్న’ శ్రీహరికోట! - EENADU [Telugu] [Google translate]

Another report while not giving any funding details echoes positive movements towards establishment of new launch site with political angle of course.

కులశేఖరపట్నంలో మరో రాకెట్‌ ప్రయోగ కేంద్రం.. వద్దన్న చోటుకే మొగ్గు! - [Telugu] [Google translate]

This report quoting District Collector Sandeep Nanduri (Tuticorin) merely suggests a report on surveyed area has been submitted with land acquisition estimates but overall this looks pretty serious now.

To questions on the proposed ISRO facility near Kulasekarapattinam, he said a preliminary study was conducted and report created.

He said he was yet to receive directions regarding the project. “About 2,500 acres of land have been identified and a report on cost of land acquisition has been given. Residential areas have been avoided as far as possible.”

Kudimaramathu work will be completed before Oct. 10: Collector
 
We finally have details on a SSLV payload :

Microsat-2A: The satellite is being realised based on Microsat-TD to demonstrate launch on demand capability with SSLV. It is expected to meet the ever-increasing user demands for cartographic applications at cadastral level, urban and rural management, coastal land use and regulation, utilities mapping, development and various other GIS applications. The satellite carries two payloads, MWIR & LWIR, with 6m resolution. The mass of the spacecraft is 142 kg and it will be placed at an altitude of 350 km. The mission life of the satellite is 10 months.​
On Small Satellite launch Vehicle :

SSLV-D1: Design of all vehicle systems is completed and hardware realisation is progressing in fast track mode. The activities towards static test of first stage solid motor (SS1) are progressing. Acceptance testing of second stage (SS2) flight motor case completed. Third stage (SS3) motor is under propellant processing.​
Design & realisation of new Mission Management Computer (MMC) and Sequencing Execution Module (SEM) has been completed. A new miniaturized telemetry system has been developed for SSLV achieving 70 % mass reduction in the telemetry package. Characterization of vehicle configuration through wind tunnel tests and CFD are nearing completion.​
Vibration test of propellant tank for Velocity Trimming Module were completed. 50N thrusters & valves were realised. Assembly and integration scheme and flight measurement plans were finalised.​
 
Some photos/slides showing SSLV's integration at the First launch Pad (FLP). The rocket's segment was prepared at the Second Vehicle Assembly Building (SVAB)
1633708530144.png

VLAF stands for Vehicle Assembly & Launch Facility. There are some modifications made to the FLP to make it capable of launching the SSLV :
1633708571740.png

Assembly at the SVAB:
1633708606639.png

1633708661675.png

Anybody know what Carbon rope does ?
1633708724059.png

Igniter assembly :
1633708786404.png

1633708837764.png



The dates on the photos are from 12/01/2021, before the problem with the 1st stage came up. Problems during the static tests came up in march of 2021. So the SSLV-D1 has been assembled & may be still at the SVAB. In September there was an article in the media that the launch of the SSLV-D1 has been delayed to December 2021. I hope they can do it by this year.