Navalyze · Vehicle carrier · Ship

ASTERIA LEADER

IMO: 9531741
Type: Vehicle carrier
Average cargo carried: 3,898 t
Flag (estimated): Japan (from the 2018 report)
Technical efficiency: EEDI 14.10 g CO₂/t·nm

ISM company (DoC holder) in 2025: EXCEL MARINE CO., LTD.

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 7,320 t of cargo on average.

Fuel kg/nm

104

Vehicle carrier median 104 kg/nm (+0%)

CO₂ per transport work (cargo)

44.5

g CO₂/t·nm · Vehicle carrier median 62.4 (−29%)

Average speed

16.7 kn

Vehicle carrier median 14.7 kn (+14%)

Fuel per day at sea

41.7 t/day

Fuel consumed

2,268 t

CO₂ emitted

7,082 t

Distance sailed

21,754 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,305 h

54 days, 15% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 89.2 kg/nm · median 99.9 (−11%)

79.6Ranks 115 of 506, lowest first119

Average speedThis ship 13.1 kn · median 14.4 (−9%)

12.0Faster than 22% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 72.2 g CO₂/t·nm · median 55.4 (+30%)

34.7Ranks 336 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2018

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports28%
From the EU0%
Into the EU69%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

252 t

3.6% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Vehicle carrier median is the middle ship of all vehicle carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

ASTERIA LEADER
Vehicle carrier median

80.090.0100.0110.0120.0

’182018’212021’222022’232023’242024’252025

Average speed, kn

ASTERIA LEADER
Vehicle carrier median

10.012.014.016.018.0

’182018’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

ASTERIA LEADER
Vehicle carrier median

40.050.060.070.080.0

’182018’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+2.4 kn	−7%	+14%	−21%	–	2.4 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2023→2024	−3.6 kn	−6%	−30%	−5%	–	3.6 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.9 kn	−0%	+14%	−40%	+2%	1.9 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2021→2022	−0.4 kn	−9%	−12%	+110%	−36%	0.4 kn slower, fuel per mile down 9%; in line with the speed change.
2018→2021	−3.9 kn	+8%	−17%	−63%	+66%	3.9 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	EXCEL MARINE CO., LTD.	672	2,119	7,534	575	13.1	89.2	72.2	–
2024	EXCEL MARINE CO., LTD.	916	2,869	9,526	894	10.7	96.1	–	–
2023	not published	1,025	3,242	10,065	706	14.3	102	47.9	–
2022	not published	1,718	5,433	16,784	1,352	12.4	102	47.1	–
2021	not published	901	2,857	7,990	624	12.8	113	73.9	–
2018	not published	2,268	7,082	21,754	1,305	16.7	104	44.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	EXCEL MARINE CO., LTD.	72.2	55.4	+30%	336 of 506	ClassNK	C
2024	EXCEL MARINE CO., LTD.	–	–	–	–	ClassNK	C
2023	not published	47.9	56.6	−15%	122 of 417	ClassNK	C
2022	not published	47.1	57.7	−18%	118 of 463	ClassNK	C
2021	not published	73.9	59.6	+24%	321 of 459	ClassNK	C
2018	not published	44.5	62.4	−29%	34 of 434	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's vehicle carrier ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.