A Sky Full of Stars
summary
Story of building MeerKAT and proving it works: a 64-antenna radio array with 64 antennas and 40 Gbit links from each feed into an underground, copper‑lined data bunker, a correlator producing ~3,000 baselines and petabyte archives. First light traces from KAT‑7 (2009) to MeerKAT inauguration (2018); deep 12‑hour field finds ~5,000 galaxies where only a dozen were known, astrometry ~0.1 arcsec, GPU pipelines at ~55% efficiency, ~350k lines of Python, custom storage pods and tape backup, system running and producing new science.
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chapters (21)
- 0:00Introduction and welcome
- 1:43Why radio astronomy matters
- 4:32Scaling radio telescopes
- 6:19Building Meerkat
- 8:56First science with Meerkat
- 10:21Calibration challenges
- 12:29Galactic center breakthrough
- 14:17Technology behind Meerkat
- 18:10The unknown known challenge
- 20:18Optimizing last and Python
- 22:03Data flow and storage
- 26:16Containerization and orchestration
- 29:04Code complexity and QA
- 31:33Compute sizing and modeling
- 34:00Hardware deployment
- 36:27Storage at scale
- 38:16Data distribution
- 39:19Troubleshooting struggles
- 41:24Future of radio astronomy
- 42:06Meerkat’s global impact
- 42:55Q&A: SETI and SKA
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