The mirror serves a regional astronomy and astrophysics network that performs time-domain searches against public survey data. Holding cached copies of large survey releases here removes a recurring multi-TB load from IPAC, MAST, ESAC, and CASU during peak observing seasons.
ZTF (full data release + 30-day alert window), ASAS-SN v2 sky patrol, ATLAS forced photometry service exports, Gaia DR3 source / variable / lite catalogs, 2MASS PSC, SDSS DR17 photometric catalog, Pan-STARRS DR2 mean object table, K2 PDC light curves (selected campaigns).
Survey-driven. ZTF alerts: 30-day rolling window pulled hourly. ZTF DR: refreshed when the survey team posts a new DR. Gaia DR: refreshed on each ESA archive promotion. Heritage catalogs (2MASS, SDSS, Pan-STARRS): static, refreshed only on errata.
Active footprint approximately 38 TB across alert streams, light curve bulk dumps, and catalog snapshots. Per-object light curves dominate by row count; alert archives dominate by byte count.
Per-IP sustained 60 MB/s, burst 180 MB/s for 60 seconds, then HTTP 429 until the quota resets. Backoff at least 10 minutes between sustained pulls of the same large artefact.
Public survey data is released under each project’s data policy. ZTF and Gaia are CC-BY equivalents with citation requirements; 2MASS, SDSS, Pan-STARRS, ATLAS are unrestricted public-domain for research use. Cite the survey paper listed in each subdirectory README.
Mirror coordination is handled by the upstream consortium contact rota. The mirror operator does not maintain public contact channels; takedown or correction notices should reach the relevant survey help desk first.