Landsat 9 — launch date, altitude, sensors?
essential landsat
  • 🚀 Launch: Sept 27, 2021
  • 🛰️ Orbit
    • Altitude: 705 km
    • Sun-synchronous, 10 AM equator crossing
    • 16-day repeat (8-day combined with Landsat 8)
  • 📷 Sensors (the “-2” matches Landsat-9)
    • OLI-2 — Operational Land Imager: 9 bands, 30 m VSWIR, 15 m pan
    • TIRS-2 — Thermal Infrared Sensor: 2 thermal bands at 100 m
  • 🎚️ Radiometric: 14-bit (vs 12-bit on L8, 8-bit on L5/7)
💡

705 km, 2021. OLI-2 + TIRS-2 (the '-2' matches Landsat-9). With L8 flying opposite, combined revisit ≈ 8 days.

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