- NISAR Launch Date: Expected in June 2025 on a GSLV rocket from Satish Dhawan Space Centre. Exact date to be announced.
- Mission Overview: Joint NASA-ISRO Earth observation satellite to map the entire Earth’s surface every 12 days.
- Objectives: Monitor ecosystem changes, ice sheet dynamics, vegetation patterns, sea level rise, groundwater variation, and track natural hazards. Aims to provide insights into climate change and natural hazards.
- Key Feature: High Precision: Will capture changes as small as one centimetre.
- Technological Advancement: Uses dual-frequency radar (L-band from NASA, S-band from ISRO) for detailed Earth surface monitoring.
- Antenna: Features a 12-metre drum-shaped wire mesh reflector, the largest in space, for enhanced signal focus.
- Delay and Upgrade: The mission faced delays due to a key component, the 12-metre antenna, needing improvement. It was shipped back to the US for upgrades.
- Upcoming ISRO Missions: EOS-09 (Earth Observation Satellite) and Gaganyaan TV-D2 Mission (Crew Escape System test) are scheduled before NISAR.
- Axiom-4 Mission: Indian astronaut Shubhanshu Shukla will travel to the ISS, becoming the second Indian in space.
SMT
-
Electronics Manufacturing Surge in India: Electronics manufacturing in India has increased fivefold in the last decade, exceeding Rs 11 lakh crore. This was highlighted at the inauguration of VVDN Technologies’ SMT line.
-
What is SMT: Surface Mount Technology (SMT) is a method for mounting electronic components directly onto the surface of Printed Circuit Boards (PCBs).
-
SMT vs. Through-Hole Technology (THT): SMT is more compact, economical, and efficient compared to traditional THT. SMT enables automated production.
-
SMT Advantages: SMT offers cheaper production costs, higher component density, and improved electrical performance compared to THT. SMT supports microelectronics by allowing components to be packed closer together. The process for SMT production setup is faster than THT. SMT overall makeup is far less complex than THT.
-
SMT Soldering Techniques: The primary soldering methods in SMT are reflow soldering and wave soldering.
-
SMT Applications: SMT is widely used across various industries, including consumer electronics, medical devices, and aerospace.