N40RR
Cessna Citation CJ4
United States
GXY (Greeley-Weld County Airport, Greeley)

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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 increasing vs prior period

Emissions Overview

13.4
Tons CO2 This Month
Typical1.5× avg for Citation CJ4
23.2
Tons CO2 YTD
Typical0.9× avg for Citation CJ4
93.8
CO2 Tons Since 2025
Below Average0.7× avg for Citation CJ4
Emissions Intensity0.01t CO₂/nmTypical0.9× avg for Citation CJ4
69.4 tons CO2 in selected period

2026 pace: On track for approximately 93t CO₂ by year end · ↑ 31% vs full year 2025 (71t)

Flight Patterns & Behaviour

Emissions up 209% vs prior period, driven by Greeley → Lexington

71t
Period total CO₂
2.7t
Avg per flight
26
Flights
Moderately Concentrated3 routes account for 47% of total emissions
Highest emission route
Greeley → Lexington
16.7t CO₂ total · 0.0035t CO₂/nm

Seasonal pattern: Historically peaks in February · Current month is 190% above March 2025

🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.3× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
209%
23t → 71t CO₂
Intensity
21%
0.0050 → 0.0040 t CO₂/nm
New Routes
17
57t CO₂ combined
Dropped Routes
3
Prior period only
Avg per Flight
29%
3.8t → 2.7t
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

28t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New20 May – 26 May 2025
Elevated activity period · 1 flights in 6 days vs baseline of 0
Contributed approximately 4t CO₂ to period total — 6% of period emissions
Aircraft
Medium
New23 Aug – 5 Sept 2025
Elevated activity period · 3 flights in 13 days vs baseline of 1
Contributed approximately 5t CO₂ to period total — 7% of period emissions
Aircraft
Medium
New1 Nov – 14 Nov 2025
Elevated activity period · 4 flights in 13 days vs baseline of 1
Contributed approximately 9t CO₂ to period total — 13% of period emissions
Aircraft
Medium
Historical17 Apr – 23 May 2025
36-day inactive period
4.8t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical3 Jun – 29 Aug 2025
87-day inactive period
4.9t CO₂ in the 7 days following resumption
Recent Flights
Mar 30, 20265.4t CO₂
KGXYGreeley
KPWMPortland
1,762 miles3h 29m
Mar 18, 20263.5t CO₂
KGXYGreeley
KLEXLexington
1,081 miles2h 19m
Mar 3, 20262.9t CO₂
KCFDBryan
KBJCDenver
804 miles1h 57m
Mar 3, 20261.8t CO₂
KTCLTuscaloosa
KCLLCollege Station
544 miles1h 20m
View Details
Mar 3, 20263.0t CO₂
KAPADenver
KTCLTuscaloosa
1,051 miles2h 2m
View Details
Mar 2, 20260.5t CO₂
KGXYGreeley
KAPADenver
61 miles21m
View Details
Feb 18, 20263.0t CO₂
KGXYGreeley
KLEXLexington
1,081 miles2h 3m
View Details
Feb 7, 20265.9t CO₂
KOCFOcala
KGXYGreeley
1,483 miles3h 44m
View Details
Jan 15, 20260.5t CO₂
KAPADenver
KGXYGreeley
61 miles24m
View Details
Dec 7, 20254.5t CO₂
KLEXLexington
KGXYGreeley
1,081 miles2h 54m
View Details
Nov 14, 20253.4t CO₂
KGXYGreeley
KJVYJeffersonville
1,016 miles2h 17m
View Details
Nov 10, 20250.5t CO₂
KBJCDenver
KGXYGreeley
44 miles11m
View Details
Nov 7, 20252.5t CO₂
KTMEHouston
KTCLTuscaloosa
542 miles1h 44m
View Details
Nov 7, 20252.7t CO₂
KBJCDenver
KTMEHouston
871 miles1h 53m
View Details
Oct 26, 20255.6t CO₂
KOCFOcala
KGXYGreeley
1,483 miles3h 34m
View Details
Oct 5, 20252.7t CO₂
KAUSAustin
KGXYGreeley
808 miles1h 52m
View Details
Sep 5, 20253.2t CO₂
KGXYGreeley
KLEXLexington
1,081 miles2h 9m
View Details
Sep 5, 20250.5t CO₂
KBJCDenver
KGXYGreeley
44 miles15m
View Details
Sep 1, 20252.2t CO₂
KGXYGreeley
MMCGNuevo Casas Grandes
716 miles1h 34m
View Details
Aug 29, 20250.5t CO₂
KDENDenver
KGXYGreeley
39 miles10m
View Details
Aug 29, 20252.1t CO₂
KBJCDenver
MMCGNuevo Casas Grandes
675 miles1h 32m
View Details
Jun 3, 20253.6t CO₂
KGXYGreeley
KLEXLexington
1,081 miles2h 25m
View Details
May 26, 20250.5t CO₂
KBJCDenver
KGXYGreeley
44 miles18m
View Details
May 23, 20254.3t CO₂
KBJCDenver
KSSISt Simons Island
1,458 miles2h 49m
View Details
Apr 17, 20252.2t CO₂
KOCFOcala
KLEXLexington
627 miles1h 36m
View Details
Apr 10, 20253.4t CO₂
KGXYGreeley
KLEXLexington
1,081 miles2h 16m
View Details
Mar 12, 20255.9t CO₂
KOCFOcala
KGXYGreeley
1,483 miles3h 45m
View Details
Feb 27, 20252.2t CO₂
KHNDLas Vegas
KGXYGreeley
647 miles1h 36m
View Details
Feb 10, 20256.2t CO₂
KMCOOrlando
KGXYGreeley
1,558 miles3h 58m
View Details
Feb 1, 20253.1t CO₂
KOCFOcala
NaN miles2h 7m
View Details
Jan 26, 20252.9t CO₂
KAUSAustin
KGXYGreeley
808 miles1h 60m
View Details
Jan 23, 20252.6t CO₂
KGXYGreeley
KAUSAustin
808 miles1h 49m
View Details
Top Airports by Emissions
Greeley

Greeley

KGXY

Total CO₂

49.5t

Total Visits

18

Avg CO₂/visit

2.8t

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

Lexington

KLEX

Total CO₂

23.4t

Total Visits

7

Avg CO₂/visit

3.3t

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

Ocala

KOCF

Total CO₂

13.7t

Total Visits

3

Avg CO₂/visit

4.6t

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

Denver

KBJC

Total CO₂

13.6t

Total Visits

7

Avg CO₂/visit

1.9t

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

Tuscaloosa

KTCL

Total CO₂

7.3t

Total Visits

3

Avg CO₂/visit

2.4t

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

Portland

KPWM

Total CO₂

5.4t

Total Visits

1

Avg CO₂/visit

5.4t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 3
Top Routes by Emissions
Greeley Lexington

KGXY to KLEX1,082 miles

Total Flights

5

Avg CO₂/Flight

3.3t

Total Emissions

16.7t CO₂

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

KOCF to KGXY1,484 miles

Total Flights

2

Avg CO₂/Flight

5.7t

Total Emissions

11.4t CO₂

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

KGXY to KPWM1,763 miles

Total Flights

1

Avg CO₂/Flight

5.4t

Total Emissions

5.4t CO₂

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

KLEX to KGXY1,082 miles

Total Flights

1

Avg CO₂/Flight

4.5t

Total Emissions

4.5t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Denver St Simons Island

KBJC to KSSI1,459 miles

Total Flights

1

Avg CO₂/Flight

4.3t

Total Emissions

4.3t CO₂

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

KGXY to KJVY1,017 miles

Total Flights

1

Avg CO₂/Flight

3.4t

Total Emissions

3.4t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 4