reliable = data[data['zwarn'] == 0]
print(f"Found len(reliable) high-confidence LRGs from DesiHub 3.") desihub 3 2021
The release of DesiHub 3 unlocked a flurry of scientific activity. By mid-2021, the first results began appearing on arXiv. Some notable applications included: The release of DesiHub 3 unlocked a flurry
Why should you care about a data release from three years ago? Because DESIHUB 3 2021 proved that DESI worked. After years of delays, a pandemic, and complex hardware integration, the 2021 data was the "proof of concept." It showed that the 5,000 robots could align simultaneously, that the spectrographs could maintain calibration over a full lunar cycle, and that the data pipeline could handle the torrent of information. and complex hardware integration
For astronomers, the 3 2021 release is often compared to the Hubble Deep Field—a small glimpse that revealed a vast universe. It did not answer all the questions about Dark Energy, but it set the stage for the answers that are now coming in the 2024–2026 DESI data releases.
data = conn.query(target_type='LRG', redshift_range=(0.75, 0.85))
While the full survey data remained proprietary to collaboration members, DesiHub 3 (2021) included the Early Data Release (EDR). This subset allowed collaboration scientists to publish "early science" papers. The EDR contained: