N525LK
Cessna Citation CJ2
United States
RHV (Reid-Hillview of Santa Clara County Airport, San Jose)

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Viewing period:
Compared to: preceding 12 months · May 2024 – May 2025
May 2025 – Apr 2026·vs May 2024 – May 2025· Emissions increasing vs prior period

Emissions Overview

1.6
Tons CO2 This Month
Below Average0.3× avg for Citation CJ2
4.3
Tons CO2 YTD
Below Average0.3× avg for Citation CJ2
33.1
CO2 Tons Since 2025
Below Average0.4× avg for Citation CJ2
Emissions Intensity0.01t CO₂/nmTypical0.8× avg for Citation CJ2
18.3 tons CO2 in selected period

2026 pace: On track for approximately 13t CO₂ by year end · ↓ 55% vs full year 2025 (29t)

Flight Patterns & Behaviour

Highly concentrated — San Jose → Eagle accounts for 83% of emissions

14t
Top route CO₂
3
Distinct routes
9
Flights
Highly Concentrated3 routes account for 100% of total emissions
Highest emission route
San Jose → Eagle
13.6t CO₂ total · 0.0038t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.1× country averageBelow Average

Subject to FAA oversight — no mandatory carbon reporting for private aviation

What's ChangedCompared to prior equivalent period
Emissions
15%
14t → 16t CO₂
Intensity
1%
0.0039 → 0.0039 t CO₂/nm
New Routes
1
1t CO₂ combined
Dropped Routes
3
Prior period only
Avg per Flight
36%
2.9t → 1.8t
Flight Count
4
5 → 9 flights

Route and airport counts may include data processing artefacts.

Spikes

Significant deviations from this aircraft's baseline in the selected period.

CO₂ Above Baseline

13t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New13 May – 21 Jun 2025
Elevated activity period · 3 flights in 39 days vs baseline of 1
Contributed approximately 4t CO₂ to period total — 25% of period emissions
Aircraft
Medium
Historical13 May – 31 May 2025
18-day inactive period
0.7t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical21 Jun – 15 Aug 2025
55-day inactive period
2.8t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical15 Aug – 5 Sept 2025
21-day inactive period
2.8t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical5 Sept – 4 Nov 2025
60-day inactive period
2.5t CO₂ in the 7 days following resumption
Recent Flights
Jan 8, 20262.7t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 11m
Dec 13, 20250.7t CO₂
KRHVSan Jose
KRDDRedding
221 miles44m
Nov 4, 20252.5t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 3m
Sep 5, 20252.8t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 14m
View Details
Aug 15, 20252.8t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 12m
View Details
Jun 21, 20250.8t CO₂
KRHVSan Jose
KRDDRedding
221 miles47m
View Details
Jun 13, 20252.8t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 15m
View Details
May 31, 20250.7t CO₂
KRHVSan Jose
KRDDRedding
221 miles43m
View Details
May 13, 20250.5t CO₂
KRHVSan Jose
KSMFSacramento
95 miles27m
View Details
Apr 11, 20252.6t CO₂
KRHVSan Jose
KEGEEagle
820 miles2h 5m
View Details
Feb 20, 20250.8t CO₂
KRHVSan Jose
KRDDRedding
221 miles49m
View Details
Jan 28, 20253.4t CO₂
KPEFColorado Springs
KRHVSan Jose
933 miles2h 42m
View Details
Jan 24, 20255.1t CO₂
KRHVSan Jose
KSUSSt Louis
1,690 miles3h 56m
View Details
Jan 9, 20252.4t CO₂
KRHVSan Jose
KPUCPrice
618 miles1h 56m
View Details
Top Airports by Emissions
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