Challenges in Electro Optical Systems Development for Space Missions
summary
Long, multi‑institution work builds the UV imaging telescope on Astrosat (launched 28 Sep 2015) with a folded RC optic ~1.5 m focal length and target 1.4 arcsec resolution; mirror figure requirement is lambda/50 surface figure at 633 nm with <10 Å roughness, coatings >70% reflectance in UV. Qualification uses a 3.8 m thermal‑vac chamber at 10^-6 torr, isostatic mounts that meet >150 Hz natural frequency (achieved ~450 Hz), extensive vibration, transport and contamination control, and yields ~2 arcsec on‑orbit imaging.
AI-written summary · about
chapters (8)
- 0:00Start
- 3:31ASTROSAT Mission Indian Multiwavelength Space Observatory
- 13:03Critical Areas of Development
- 14:48Opto-Mechanical Design Challenges
- 17:53Typical requirements of OMA
- 24:47Typical UVIT Image showing faraway Galaxys
- 29:26Learning from Mistakes
- 30:51Summary
related talks
48mThe Universe, Unfolded: NASA James Webb Space Telescope
40mAn Average Working Day on Visionary NASA Projects
42mProject Showcase Ultraviolet Spectrometer UVS Operations
46mA 13 Billion Year Old Photograph
50mAn Average Working Day on Visionary NASA Projects
42mVZLUSAT-2: CubeSat with a Linux Payload Computer
06mMETASAT Demonstrator: Mixed Criticality, Accelerated AI Computing for Future Space Systems
29mPW-SAT2: POLISH CUBESAT PROJECT