N999JD
Cessna Citation Mustang
United States
BFI (King County International Airport, Seattle)

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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

3.0
Tons CO2 This Month
Typical0.9× avg for Citation Mustang
3.0
Tons CO2 YTD
Below Average0.3× avg for Citation Mustang
26.6
CO2 Tons Since 2025
Below Average0.5× avg for Citation Mustang
Emissions Intensity0.00t CO₂/nmBelow Average0.7× avg for Citation Mustang
19.0 tons CO2 in selected period

2026 pace: On track for approximately 9t CO₂ by year end · ↓ 62% vs full year 2025 (24t)

Flight Patterns & Behaviour

Emissions up 219% vs prior period, driven by Seattle → Monterey

20t
Period total CO₂
1.5t
Avg per flight
13
Flights
Highly Concentrated3 routes account for 70% of total emissions
Highest emission route
Seattle → Monterey
7.9t CO₂ total · 0.0030t 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
219%
6t → 20t CO₂
Intensity
0.0029 → 0.0029 t CO₂/nm
New Routes
8
19t CO₂ combined
Dropped Routes
5
Prior period only
Avg per Flight
97%
0.8t → 1.5t
Flight Count
5
8 → 13 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
New15 May – 21 May 2025
Elevated activity period · 1 flights in 6 days vs baseline of 0
Contributed approximately 1t CO₂ to period total — 4% of period emissions
Aircraft
Medium
New23 Jun – 30 Jul 2025
Elevated activity period · 3 flights in 37 days vs baseline of 2
Contributed approximately 4t CO₂ to period total — 21% of period emissions
Aircraft
Medium
New1 Sept – 24 Sept 2025
Elevated activity period · 2 flights in 23 days vs baseline of 1
Contributed approximately 4t CO₂ to period total — 20% of period emissions
Aircraft
Medium
Historical15 May – 29 Jun 2025
46-day inactive period
1.8t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical13 Jul – 30 Jul 2025
17-day inactive period
1.9t CO₂ in the 7 days following resumption
Recent Flights
Mar 25, 20262.5t CO₂
KBFISeattle
KMRYMonterey
757 miles2h 58m
Mar 21, 20261.8t CO₂
KMRYMonterey
KBFISeattle
757 miles2h 12m
Mar 18, 20260.9t CO₂
KEEDNeedles
KMRYMonterey
423 miles1h 18m
Dec 17, 20251.8t CO₂
KBFISeattle
KMRYMonterey
756 miles2h 13m
View Details
Oct 20, 20251.9t CO₂
KBFISeattle
KMRYMonterey
756 miles2h 19m
View Details
Sep 24, 20250.3t CO₂
KSMXSanta Maria
KMRYMonterey
140 miles28m
View Details
Sep 7, 20251.5t CO₂
KPHXPhoenix
KMRYMonterey
597 miles1h 59m
View Details
Sep 7, 20252.5t CO₂
KSATSan Antonio
KPHXPhoenix
840 miles3h 2m
View Details
Jul 30, 20251.9t CO₂
KBFISeattle
KMRYMonterey
756 miles2h 18m
View Details
Jul 13, 20250.6t CO₂
KSNASanta Ana
KSNSSalinas
295 miles1h 0m
View Details
Jul 7, 20251.9t CO₂
KBFISeattle
KOARMarina
750 miles2h 18m
View Details
Jun 29, 20251.8t CO₂
KMRYMonterey
KBFISeattle
756 miles2h 14m
View Details
May 15, 20250.8t CO₂
KMYFSan Diego
KSNSSalinas
367 miles1h 8m
View Details
Apr 25, 20251.6t CO₂
KDVTPhoenix
KSNSSalinas
575 miles2h 3m
View Details
Apr 22, 20250.3t CO₂
KFLGFlagstaff
KPRCPrescott
54 miles36m
View Details
Apr 14, 20250.3t CO₂
KSMFSacramento
KSNSSalinas
140 miles33m
View Details
Apr 9, 20250.7t CO₂
KMYFSan Diego
KSNSSalinas
367 miles1h 3m
View Details
Feb 26, 20250.8t CO₂
KMYFSan Diego
KSNSSalinas
367 miles1h 8m
View Details
Feb 12, 20250.3t CO₂
KSMFSacramento
KSNSSalinas
140 miles32m
View Details
Feb 1, 20251.4t CO₂
KMYFSan Diego
KSMFSacramento
476 miles1h 51m
View Details
Jan 15, 20251.0t CO₂
KMRYMonterey
KMYFSan Diego
373 miles1h 21m
View Details
Top Airports by Emissions
Monterey

Monterey

KMRY

Total CO₂

14.2t

Total Visits

9

Avg CO₂/visit

1.6t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Seattle

Seattle

KBFI

Total CO₂

13.3t

Total Visits

7

Avg CO₂/visit

1.9t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Phoenix

Phoenix

KPHX

Total CO₂

4.1t

Total Visits

2

Avg CO₂/visit

2.0t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
San Antonio

San Antonio

KSAT

Total CO₂

2.5t

Total Visits

1

Avg CO₂/visit

2.5t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Marina

Marina

KOAR

Total CO₂

1.9t

Total Visits

1

Avg CO₂/visit

1.9t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Salinas

Salinas

KSNS

Total CO₂

1.4t

Total Visits

2

Avg CO₂/visit

0.7t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2
Top Routes by Emissions
Seattle Monterey

KBFI to KMRY757 miles

Total Flights

4

Avg CO₂/Flight

2.0t

Total Emissions

7.9t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Monterey Seattle

KMRY to KBFI757 miles

Total Flights

2

Avg CO₂/Flight

1.8t

Total Emissions

3.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
San Antonio Phoenix

KSAT to KPHX841 miles

Total Flights

1

Avg CO₂/Flight

2.5t

Total Emissions

2.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Seattle Marina

KBFI to KOAR750 miles

Total Flights

1

Avg CO₂/Flight

1.9t

Total Emissions

1.9t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Phoenix Monterey

KPHX to KMRY598 miles

Total Flights

1

Avg CO₂/Flight

1.5t

Total Emissions

1.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Needles Monterey

KEED to KMRY424 miles

Total Flights

1

Avg CO₂/Flight

0.9t

Total Emissions

0.9t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2