N518TT
Cessna Citation CJ4
United States
SQA (Santa Ynez Airport, Santa Ynez)

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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

8.5
Tons CO2 This Month
Typical0.9× avg for Citation CJ4
9.5
Tons CO2 YTD
Below Average0.4× avg for Citation CJ4
27.4
CO2 Tons Since 2025
Below Average0.2× avg for Citation CJ4
Emissions Intensity0.01t CO₂/nmTypical1.3× avg for Citation CJ4
23.2 tons CO2 in selected period

2026 pace: On track for approximately 29t CO₂ by year end · ↑ 59% vs full year 2025 (18t)

Flight Patterns & Behaviour

Emissions up 269% vs prior period, driven by Las Vegas → Wichita

14t
Period total CO₂
0.9t
Avg per flight
16
Flights
Moderately Concentrated3 routes account for 49% of total emissions
Highest emission route
Las Vegas → Wichita
3.4t CO₂ total · 0.0039t 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
269%
4t → 14t CO₂
Intensity
14%
0.0044 → 0.0051 t CO₂/nm
New Routes
7
9t CO₂ combined
Dropped Routes
1
Prior period only
Avg per Flight
15%
0.7t → 0.9t
Flight Count
11
5 → 16 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

8t

Signals Detected

5

Highest Severity

High

Aircraft
High
New8 May – 31 May 2025
Elevated activity period · 4 flights in 23 days vs baseline of 1
Contributed approximately 6t CO₂ to period total — 40% of period emissions
Aircraft
Medium
New4 Jul – 28 Jul 2025
Elevated activity period · 1 flights in 24 days vs baseline of 1
Contributed approximately 1t CO₂ to period total — 4% of period emissions
Aircraft
Medium
Historical31 May – 20 Jun 2025
20-day inactive period
0.5t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical20 Jun – 10 Jul 2025
19-day inactive period
0.5t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical10 Jul – 28 Jul 2025
19-day inactive period
1.1t CO₂ in the 7 days following resumption
Recent Flights
Mar 19, 20260.5t CO₂
KONTOntario
KIZASanta Ynez
146 miles29m
Feb 24, 20260.5t CO₂
KIZASanta Ynez
KONTOntario
146 miles31m
Jan 6, 20260.5t CO₂
KIZASanta Ynez
KHHRHawthorne
110 miles32m
Dec 19, 20250.5t CO₂
KHHRHawthorne
KIZASanta Ynez
110 miles26m
View Details
Dec 10, 20250.5t CO₂
KSNASanta Ana
KIZASanta Ynez
142 miles26m
View Details
Nov 25, 20250.5t CO₂
KONTOntario
KIZASanta Ynez
146 miles22m
View Details
Nov 25, 20250.5t CO₂
KIZASanta Ynez
KONTOntario
146 miles32m
View Details
Aug 25, 20250.5t CO₂
KSMXSanta Maria
KIZASanta Ynez
30 miles8m
View Details
Jul 28, 20251.1t CO₂
KPVUProvo
KBVUBoulder City
340 miles56m
View Details
Jul 10, 20250.5t CO₂
KHHRHawthorne
KIZASanta Ynez
110 miles24m
View Details
Jun 20, 20250.5t CO₂
KHHRHawthorne
KIZASanta Ynez
110 miles22m
View Details
May 31, 20251.7t CO₂
KSNASanta Ana
NaN miles1h 16m
View Details
May 31, 20250.6t CO₂
KIZASanta Ynez
KSNASanta Ana
142 miles37m
View Details
May 20, 20250.5t CO₂
KONTOntario
KIZASanta Ynez
146 miles27m
View Details
May 11, 20251.0t CO₂
KHNDLas Vegas
KIZASanta Ynez
294 miles53m
View Details
May 8, 20253.4t CO₂
KHNDLas Vegas
KAAOWichita
996 miles2h 16m
View Details
Apr 27, 20250.7t CO₂
KFULFullerton
KSMXSanta Maria
158 miles41m
View Details
Mar 3, 20251.0t CO₂
KHNDLas Vegas
KIZASanta Ynez
294 miles50m
View Details
Jan 24, 20251.0t CO₂
KHNDLas Vegas
KIZASanta Ynez
294 miles51m
View Details
Jan 4, 20250.5t CO₂
KHHRHawthorne
KIZASanta Ynez
110 miles23m
View Details
Jan 4, 20250.5t CO₂
KIZASanta Ynez
KHHRHawthorne
110 miles31m
View Details
Top Airports by Emissions
Santa Ynez

Santa Ynez

KIZA

Total CO₂

7.6t

Total Visits

13

Avg CO₂/visit

0.6t

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

Las Vegas

KHND

Total CO₂

4.4t

Total Visits

2

Avg CO₂/visit

2.2t

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

Wichita

KAAO

Total CO₂

3.4t

Total Visits

1

Avg CO₂/visit

3.4t

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

Santa Ana

KSNA

Total CO₂

2.8t

Total Visits

3

Avg CO₂/visit

0.9t

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

Ontario

KONT

Total CO₂

2.7t

Total Visits

5

Avg CO₂/visit

0.5t

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

Hawthorne

KHHR

Total CO₂

2.1t

Total Visits

4

Avg CO₂/visit

0.5t

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

KHND to KAAO996 miles

Total Flights

1

Avg CO₂/Flight

3.4t

Total Emissions

3.4t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Ontario Santa Ynez

KONT to KIZA146 miles

Total Flights

3

Avg CO₂/Flight

0.5t

Total Emissions

1.6t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Hawthorne Santa Ynez

KHHR to KIZA110 miles

Total Flights

3

Avg CO₂/Flight

0.5t

Total Emissions

1.6t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Provo Boulder City

KPVU to KBVU341 miles

Total Flights

1

Avg CO₂/Flight

1.1t

Total Emissions

1.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Santa Ynez Ontario

KIZA to KONT146 miles

Total Flights

2

Avg CO₂/Flight

0.5t

Total Emissions

1.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Las Vegas Santa Ynez

KHND to KIZA294 miles

Total Flights

1

Avg CO₂/Flight

1.0t

Total Emissions

1t CO₂

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