Airports / Ralph M Calhoun Memorial Airport
Ralph M Calhoun Memorial Airport(PATA)
Tanana, United States
Last updated: Feb 24, 2026
Activity Summary
Airport Patterns
Emissions up 1629% vs prior period — significantly busier than prior period
Charter/owner classification not available for this airport's flights
Spikes
Significant deviations from this airport's baseline in the selected period.
CO₂ Above Baseline
30t
Signals Detected
5
Highest Severity
High
Elevated activity Apr 17, 2025 – Apr 23, 2025 — 3 flights in 7 days vs baseline of 1
3 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 327%.
2.4t CO₂
Elevated activity Apr 1, 2025 – Apr 7, 2025 — 2 flights in 7 days vs baseline of 1
2 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 185%.
1.5t CO₂
Elevated activity Apr 8, 2025 – Apr 14, 2025 — 2 flights in 7 days vs baseline of 1
2 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 185%.
1.1t CO₂
Single high-emission departure N608TB → KLNR on Aug 31, 2025 — 12.2t CO₂, 100% of day's total
Aircraft N608TB departing to KLNR produced 12.2t CO₂, representing 100% of all airport emissions on Aug 31, 2025.
12.2t CO₂
49-day gap in recorded activity ending Aug 31, 2025
Airport had 49 consecutive days with zero recorded flights before activity resumed on Aug 31, 2025.
12.2t CO₂
Route Map
Recent Flights
10 total flights recordedShowing most recent flights — not filtered by viewing period