What kind of ship is OKEANOS EXPLORER?

OKEANOS EXPLORER is a naval vessel sailing under the flag of United States, built in 1988 by Bollinger Mississippi Shipbuilding. The vessel is 68 m long with a beam of 13 m and has a gross tonnage of 2,062.

Who is recorded as the owner or manager of OKEANOS EXPLORER?

National Oceanic and Atmospheric Administration is recorded as Registered owner for OKEANOS EXPLORER (source: Wikidata). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for OKEANOS EXPLORER?

Voydar has no matched sanctions record displayed for OKEANOS EXPLORER from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. OKEANOS EXPLORER has 6 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

OKEANOS EXPLORER

Naval vessel · United States · built 1988 · AIS Class A

IMO8835114MMSI369888000Call signWTDHLast AIS position Aug 18, 2026, 22:07 UTC

Open in Terminal

In short

OKEANOS EXPLORER (Naval vessel, United States flag) was last seen on AIS on Aug 18, 2026, 22:07 UTC, moored, in the South Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Registered owner: National Oceanic and Atmospheric Administration (source: Wikidata).

Vessel type: Naval vessel
Flag: United States
Year built: 1988
Gross tonnage: 2,062
Size (length × beam): 68 m × 13 m
Registered owner: National Oceanic and Atmospheric Administration

Watch this ship

OKEANOS EXPLORER has not been received for a while. Follow it and we will email you as soon as it is heard again, then when it reaches or leaves port.

Free forever. No card. A free account follows up to 5 ships and ports.

Last reported position

received Aug 18, 2026, 22:07 UTC

Position: 21.2042° S, 159.7842° W
Area: South Pacific Ocean
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: 100°
Heading: —

21.2042° S, 159.7842° W

Open the full live map →

Voydar detected no port call in the last 30 days.

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)Free forever. No card. New accounts include 14 days of Pro.

Try the live demo, no sign-up

Identity & particulars

Name: OKEANOS EXPLORER
IMO numberWhat is an IMO number?: 8835114
MMSIWhat is an MMSI?: 369888000
Call signWhat is a call sign?: WTDH
Flag: United States
Vessel type: Naval vessel
AIS ship type: Noncombatant
Gross tonnageGross tonnage vs deadweight: 2,062
Length overall: 68 m
Beam: 13 m
Year built: 1988

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Registered owner: National Oceanic and Atmospheric Administration
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Operator: United States Navy
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Bollinger Mississippi Shipbuilding
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Jan 30, 2015	Inspection at Woods Hole, Massachusetts	USCG PSIX / CGMIX inspections
Nov 19, 2012	Inspection at Woods Hole, Massachusetts	USCG PSIX / CGMIX inspections
Oct 10, 2012	Inspection at WASHINGTON, District of Columbia	USCG PSIX / CGMIX inspections
Jan 19, 2012	Inspection at WASHINGTON, District of Columbia	USCG PSIX / CGMIX inspections
Aug 6, 2007	Inspection at Seattle, Washington	USCG PSIX / CGMIX inspections
Aug 6, 2007	Inspection at WASHINGTON, District of Columbia	USCG PSIX / CGMIX inspections

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Safety & inspections

Inspections

not recorded

Detentions

Deficiencies

Date	Type	Port	Findings
Jan 30, 2015	Vessel Inspection	Woods Hole, Massachusetts	clean
Nov 19, 2012	Enforcement	Woods Hole, Massachusetts	clean
Oct 10, 2012	Incident Investigation	WASHINGTON, District of Columbia	clean
Jan 19, 2012	Incident Investigation	WASHINGTON, District of Columbia	clean
Aug 6, 2007	Enforcement	Seattle, Washington	clean
Aug 6, 2007	Incident Investigation	WASHINGTON, District of Columbia	clean

Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Voydar; the incumbents charge for this.

About OKEANOS EXPLORER

NOAAS Okeanos Explorer (R 337) is a converted United States Navy ship (formerly USNS Capable (T-AGOS-16)), now an exploratory vessel for the National Oceanic and Atmospheric Administration (NOAA), officially launched in 2010. Starting in 2010, NOAA entered into a five-year partnership with the San Francisco Exploratorium. The focus is on gathering scientific information about oceans for the public as well as for scientific uses. The ship is equipped with cameras and will provide real-time viewing of the ocean floor for scientists and for the public. This is a pioneering use of what NOAA calls "telepresence technology". The Okeanos Explorer is the only vessel owned by the U.S. government that is dedicated to exploring the seabed and ocean crust. The ship is named after Okeanos, the Ancient Greek god of the sea, from which also comes the word "ocean".

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is OKEANOS EXPLORER now?: OKEANOS EXPLORER (Naval vessel, United States flag) was last seen on AIS on Aug 18, 2026, 22:07 UTC, moored, in the South Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is OKEANOS EXPLORER?: OKEANOS EXPLORER is a naval vessel sailing under the flag of United States, built in 1988 by Bollinger Mississippi Shipbuilding. The vessel is 68 m long with a beam of 13 m and has a gross tonnage of 2,062.
Who is recorded as the owner or manager of OKEANOS EXPLORER?: National Oceanic and Atmospheric Administration is recorded as Registered owner for OKEANOS EXPLORER (source: Wikidata). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for OKEANOS EXPLORER?: Voydar has no matched sanctions record displayed for OKEANOS EXPLORER from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. OKEANOS EXPLORER has 6 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

Use this data

This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.

GET /api/v1/vessels/8835114

View JSON API documentationFree without a key for occasional use; use an API key for more.

Follow by RSS Open data

Using this data in code?

Every account gets a personal API allowance: 2,500 credits a month free, 25,000 with Pro. Pro adds internal business use; API plans add building the data into your own products.

See plans