N394SR
Cessna Citation CJ4
United States
UES (Waukesha County Airport, Waukesha)

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Viewing period:
Compared to: preceding 12 months · Apr 2024 – Apr 2025
Apr 2025 – Mar 2026·vs Apr 2024 – Apr 2025

Emissions Overview

0.0
Tons CO2 This Month
Below Average0.0× avg for Citation CJ4
17.0
Tons CO2 YTD
Below Average0.7× avg for Citation CJ4
60.6
CO2 Tons Since 2025
Below Average0.5× avg for Citation CJ4
Emissions Intensity0.01t CO₂/nmTypical0.9× avg for Citation CJ4
53.1 tons CO2 in selected period

2026 pace: On track for approximately 68t CO₂ by year end · ↑ 56% vs full year 2025 (44t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 3.9t CO₂/month

3.9t
CO₂/month
1.1t
Avg per flight
25
Distinct routes
Diverse Network3 routes account for 36% of total emissions
Highest emission route
Dallas-Ft Worth → Howell
6.4t CO₂ total · 0.0037t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.2× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
>300%
6t → 47t CO₂
Intensity
18%
0.0034 → 0.0041 t CO₂/nm
New Routes
24
44t CO₂ combined
Dropped Routes
4
Prior period only
Avg per Flight
7%
1.2t → 1.1t
Flight Count
Prior data incomplete

Route and airport counts may include data processing artefacts.

Spikes

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

CO₂ Above Baseline

25t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New25 Jul – 31 Jul 2025
Elevated activity period · 2 flights in 6 days vs baseline of 1
Contributed approximately 2t CO₂ to period total — 4% of period emissions
Aircraft
Medium
New17 Sept – 21 Oct 2025
Elevated activity period · 12 flights in 34 days vs baseline of 5
Contributed approximately 13t CO₂ to period total — 27% of period emissions
Aircraft
Medium
New28 Nov – 4 Dec 2025
Elevated activity period · 1 flights in 6 days vs baseline of 1
Contributed approximately 2t CO₂ to period total — 5% of period emissions
Aircraft
Medium
Historical2 Jun – 20 Jun 2025
18-day inactive period
6.4t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical26 Jun – 18 Jul 2025
22-day inactive period
1.9t CO₂ in the 7 days following resumption
Recent Flights
Feb 27, 20260.5t CO₂
KMWCMilwaukee
KOZWHowell
208 miles27m
Feb 27, 20260.5t CO₂
KDPAChicago/West Chicago
KUESWaukesha
78 miles19m
Feb 26, 20260.5t CO₂
KUESWaukesha
KDPAChicago/West Chicago
78 miles20m
Feb 26, 20260.7t CO₂
KOZWHowell
KUESWaukesha
217 miles40m
View Details
Feb 6, 20260.7t CO₂
KDPAChicago/West Chicago
KOZWHowell
224 miles40m
View Details
Feb 5, 20260.7t CO₂
KDPAChicago/West Chicago
KOZWHowell
224 miles39m
View Details
Feb 5, 20260.5t CO₂
KUESWaukesha
KDPAChicago/West Chicago
78 miles19m
View Details
Feb 4, 20260.8t CO₂
KIKVAnkeny
KUESWaukesha
287 miles46m
View Details
Feb 2, 20260.5t CO₂
KUESWaukesha
KOZWHowell
217 miles35m
View Details
Feb 1, 20265.5t CO₂
KSDLScottsdale
KOZWHowell
1,630 miles3h 31m
View Details
Jan 15, 20260.5t CO₂
KUESWaukesha
KOZWHowell
217 miles34m
View Details
Jan 15, 20260.5t CO₂
KLOTChicago/Romeoville
KUESWaukesha
99 miles32m
View Details
Jan 15, 20260.8t CO₂
KIKVAnkeny
KLOTChicago/Romeoville
282 miles45m
View Details
Jan 13, 20263.3t CO₂
KLOTChicago/Romeoville
KOZWHowell
222 miles2h 14m
View Details
Dec 17, 20250.8t CO₂
KUESWaukesha
KIKVAnkeny
287 miles46m
View Details
Dec 4, 20250.5t CO₂
KUGNChicago/Waukegan
KOZWHowell
198 miles33m
View Details
Dec 4, 20250.5t CO₂
KUESWaukesha
KPWKChicago/Prospect Heights/Wheeling
66 miles18m
View Details
Dec 2, 20252.2t CO₂
KUESWaukesha
KVUJAlbemarle
681 miles1h 36m
View Details
Nov 6, 20250.5t CO₂
KLOTChicago/Romeoville
KOZWHowell
222 miles35m
View Details
Nov 6, 20250.5t CO₂
KDPAChicago/West Chicago
KLOTChicago/Romeoville
22 miles8m
View Details
Oct 21, 20250.5t CO₂
KLOTChicago/Romeoville
KOZWHowell
222 miles34m
View Details
Oct 21, 20250.5t CO₂
KPWKChicago/Prospect Heights/Wheeling
KLOTChicago/Romeoville
37 miles9m
View Details
Oct 21, 20250.5t CO₂
KUESWaukesha
KPWKChicago/Prospect Heights/Wheeling
66 miles18m
View Details
Oct 9, 20254.2t CO₂
KSATSan Antonio
KOZWHowell
1,209 miles2h 44m
View Details
Oct 2, 20251.4t CO₂
KIKVAnkeny
KOZWHowell
495 miles1h 6m
View Details
Oct 2, 20251.5t CO₂
KTEWMason
KIKVAnkeny
472 miles1h 9m
View Details
Oct 1, 20250.5t CO₂
KUESWaukesha
KOZWHowell
217 miles34m
View Details
Sep 29, 20250.5t CO₂
KUGNChicago/Waukegan
KOZWHowell
198 miles31m
View Details
Sep 29, 20250.9t CO₂
KIKVAnkeny
KPWKChicago/Prospect Heights/Wheeling
293 miles48m
View Details
Sep 25, 20250.7t CO₂
KDPAChicago/West Chicago
KOZWHowell
224 miles41m
View Details
Sep 25, 20250.5t CO₂
KUESWaukesha
KDPAChicago/West Chicago
78 miles18m
View Details
Sep 23, 20250.5t CO₂
KUESWaukesha
KOZWHowell
217 miles33m
View Details
Sep 23, 20250.5t CO₂
KDPAChicago/West Chicago
KUESWaukesha
78 miles22m
View Details
Sep 17, 20250.7t CO₂
KDPAChicago/West Chicago
KOZWHowell
224 miles41m
View Details
Jul 31, 20250.6t CO₂
KLOTChicago/Romeoville
KOZWHowell
222 miles37m
View Details
Jul 28, 20251.2t CO₂
KPEAPella
KOZWHowell
467 miles59m
View Details
Jul 28, 20250.8t CO₂
KLOTChicago/Romeoville
KPEAPella
251 miles43m
View Details
Jul 18, 20251.9t CO₂
KTEBTeterboro
KOZWHowell
525 miles1h 25m
View Details
Jun 26, 20253.1t CO₂
KDFWDallas-Ft Worth
KOZWHowell
977 miles2h 8m
View Details
Jun 20, 20253.2t CO₂
KDFWDallas-Ft Worth
KOZWHowell
977 miles2h 10m
View Details
Jun 2, 20250.5t CO₂
KUGNChicago/Waukegan
KOZWHowell
198 miles32m
View Details
Mar 13, 20250.7t CO₂
KDPAChicago/West Chicago
KOZWHowell
224 miles41m
View Details
Mar 11, 20251.2t CO₂
KBKWBeaver
KOZWHowell
366 miles58m
View Details
Mar 11, 20251.9t CO₂
KDPAChicago/West Chicago
KVUJAlbemarle
625 miles1h 24m
View Details
Jan 28, 20250.7t CO₂
KIKVAnkeny
KENWKenosha
295 miles42m
View Details
Jan 5, 20251.6t CO₂
KOZWHowell
KVUJAlbemarle
539 miles1h 13m
View Details
Top Airports by Emissions
Howell

Howell

KOZW

Total CO₂

33.3t

Total Visits

24

Avg CO₂/visit

1.4t

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

Waukesha

KUES

Total CO₂

11.0t

Total Visits

16

Avg CO₂/visit

0.7t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Chicago/Romeoville

Chicago/Romeoville

KLOT

Total CO₂

8.2t

Total Visits

9

Avg CO₂/visit

0.9t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Dallas-Ft Worth

Dallas-Ft Worth

KDFW

Total CO₂

6.4t

Total Visits

2

Avg CO₂/visit

3.2t

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

Ankeny

KIKV

Total CO₂

6.3t

Total Visits

6

Avg CO₂/visit

1.1t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Chicago/West Chicago

Chicago/West Chicago

KDPA

Total CO₂

6.0t

Total Visits

10

Avg CO₂/visit

0.6t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 3
Top Routes by Emissions
Dallas-Ft Worth Howell

KDFW to KOZW978 miles

Total Flights

2

Avg CO₂/Flight

3.2t

Total Emissions

6.4t CO₂

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

KSDL to KOZW1,631 miles

Total Flights

1

Avg CO₂/Flight

5.5t

Total Emissions

5.5t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Chicago/Romeoville Howell

KLOT to KOZW222 miles

Total Flights

4

Avg CO₂/Flight

1.2t

Total Emissions

5t CO₂

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

KSAT to KOZW1,210 miles

Total Flights

1

Avg CO₂/Flight

4.2t

Total Emissions

4.2t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Chicago/West Chicago Howell

KDPA to KOZW224 miles

Total Flights

4

Avg CO₂/Flight

0.7t

Total Emissions

2.7t CO₂

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

KUES to KVUJ681 miles

Total Flights

1

Avg CO₂/Flight

2.2t

Total Emissions

2.2t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 5