InterSystems Employee Programming Challenge #1 Employees only

Registration Ends:26 Jul, 2026, 11:59:59 PM EST
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Using publicly available Gaia observation archives, identify astronomical objects whose brightness changed over time for more than X%, where X is user input, and generate a sortable list of results.
💡 Update: Based on feedback from early participants, we have reduced the scope of the challenge to make it more accessible while preserving its analytical and engineering aspects. Solutions should process only the first 20 files from the Gaia archive matching the pattern: GaiaSource_000-000-000.* through GaiaSource_000-000-019.*
The output must be:

  • Gaia Source ID: source_id
  • Coordinates: ra, dec
  • Maximum and minimum brightness: phot_g_mean_mag
  • % of change
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