Container ship · Japan flag · built 2010

NYK ALTAIR: CO₂ emissions 2018–2025

IMO 9468308 EU ETS5 reporting years

CO₂ reported 2025: 17,095 t
Fuel burned: 5,511 t
Distance: 29,492 nm
Time at sea: 2,007 h
Emitted at berth: 2% of total
Share of year under way: 23%
Gross tonnage: 105,900

NYK ALTAIR against its type

Built in 2010, it is 2 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 105,900 gross tonnage it is larger than 80% of the other 3,000 container ships with a recorded tonnage. It is one of 22 container ships here under the Japan flag, 0.6% of the 3,495 on the register. The same builder is recorded for 11 other vessels here, 7 of them container ships. Nippon Yusen is linked to 11 vessels on this register. Its MRV returns name it NYK ALTAIR for 2018–2019 and ONE ALTAIR for 2020–2025. The reported port of registry changed: PANAMA (2018–2021), then TOKYO (2025).

Its 17,095 t of CO₂ for 2025 is close to the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 579.7 kg CO₂, close to the type median of 545.6 kg. It logged 2,007 hours at sea against a median of 3,155 hours for its type that year. 1.6% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 5 years with reported emissions, the highest was 2018 (53,947 t) and the lowest 2019 (16,724 t). Its efficiency percentile within the type went from 23 in 2018 to 33 in 2025 (lower is more efficient). Of the 4 sister ships listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	17,095	5,511	29,492	2,007	272	579.7	10.4	33
2021	24,842	7,877	34,116	2,009	515	728.2	9.8	20
2020	46,095	14,627	60,336	3,583	902	764.0	10.5	27
2019	16,724	5,368	20,895	1,238	668	800.4	11.0	25
2018	53,947	17,322	67,735	3,860	1,221	796.4	11.6	23

Vessel particulars

IMO number: 9468308
Previously reported as: ONE ALTAIR
Ship type: Container ship
Gross tonnage: 105,900
Length overall: 332.2 m
Year built: 2010
Flag state: Japan per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Panama. The flag shown is from the newest official source, the EU MRV return for 2025.
Builder: IHI Corporation
Port of registry: TOKYO MRV 2025
Technical efficiency (design): EEXI (9.86 gCO₂/t·nm)
Operator: Nippon Yusen
Verifier: Nippon Kaiji Kyokai, Japan
Accreditation: VS-21325-01
Compliance document issued: 2026-03-05
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 603 of 1,838 qualifying container ships by EEOI, at the 33rd percentile. The dashed line is the type median, 14.2; this vessel reported 10.4.

Across the 9 ranked vessels operated by Nippon Yusen, the median percentile is 40. This vessel is more efficient than its own fleet median.

EEOI divides emissions by transport work, which for this vessel and year was 1,640,640,115 tonne-miles over 29,492 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 68.3% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2022, 2023, 2024, so the series has gaps.

From 2021 to 2025, emissions fell 31.2% while distance sailed fell 13.6%and CO₂ per nautical mile fell 20.4%.That points mainly to how efficiently it sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 17,366 t
Methane (CH₄): 0.28 t
Nitrous oxide (N₂O): 0.99 t
Under EU ETS: 8,432 t, 49% of total

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0) and Wikimedia Commons.

This page draws on 5 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.