essential
likely
maybe
probably not
Front (prompt)
Landsat 1–3 orbit — altitude + revisit?
Plain English (default view) — short, conversational, lightly seasoned with science
🔬 Scientific / formula (revealed on click) — markdown + $$…$$ ok
- 🛰️ **Altitude:** 919 km - 🧭 **Inclination:** ~99°, sun-synchronous - ⏱️ **Period:** 103 min → 14 orbits/day - 🔁 **Revisit:** 18 days ⚠️ Orbit was **lowered to 705 km** at Landsat 4 for better spatial resolution. That's why later Landsats have 16-day revisit instead of 18.
💡 Mnemonic / memory aid (shown on hover)
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