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CELESTYAL JOURNEY

IMO
8919269
Type
Passenger ship (Cruise Passenger ship)
Flag (estimated)
Bermuda
Port of registry
Hamilton
Technical efficiency
EEXI 13.40 g CO₂/t·nm

ISM company (DoC holder) in 2025: Optimum Shipmanagement Services SA

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2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm
280
CO₂ per transport work (pax)
–
g CO₂/pax·nm
Average speed
11.4 kn
Fuel per day at sea
76.6 t/day
Fuel consumed
5,951 t
CO₂ emitted
18,792 t
Distance sailed
21,271 nm
CO₂ ÷ CO₂ per mile
Time at sea
1,865 h
78 days, 21% of the year

Within the cruise fleet, 2025

Set against all 202 cruise 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 258 kg/nm · median 264 (−2%)
89.6Ranks 98 of 202, lowest first416
Average speedThis ship 12.5 kn · median 13.1 (−5%)
10.8Faster than 34% of cruise ships15.5
CO₂ per transport work (pax)This ship 774 g CO₂/pax·nm · median 521 (+49%)
303Ranks 137 of 202, lowest first1,701
Middle 80% of shipsMiddle 50%Cruise medianThis ship

Where the emissions happen, 2023

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 ports40%
  • From the EU18%
  • Into the EU15%
  • At berth in the EU27%
Fuel burned laden
–
Not reported
CO₂ at berth
5,091 t
27.1% 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 Cruise median is the middle ship of all cruise ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

  • CELESTYAL JOURNEY
  • Cruise median

Average speed, kn

  • CELESTYAL JOURNEY
  • Cruise median

CO₂ per transport work (pax), g CO₂/pax·nm

  • CELESTYAL JOURNEY
  • Cruise median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2024→2025+1.1 kn−3%+6%−3%−4%1.1 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2023→2024+0.0 kn−5%−5%+92%–Same speed, fuel per mile down 5%; better than speed alone explains (hull, engine 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

YearISM companyFuel tCO₂ tDistance nmHours at seahAverage speedknots at seaFuel kg/nmthis shipCO₂ per transport work (cargo)g/t·nm, this shipLaden fuel
2025Optimum Shipmanagement Services SA10,22132,02639,5513,17612.5258––
2024Optimum Shipmanagement Services SA10,81233,87540,7793,57911.4265––
2023not published5,95118,79221,2711,86511.4280––

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/pax·nmCruise medianvs CruiseRankVerifierMethods
2025Optimum Shipmanagement Services SA774521+49%137 of 202DNVA
2024Optimum Shipmanagement Services SA810618+31%124 of 202DNVA
2023not published––––DNVA

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Cruise ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·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 cruise 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.