PMAs (Pressurized Mating Adapters)

E696975

International Space Station hardware Pressurized Mating Adapter space station docking adapter spacecraft docking system component

PMAs (Pressurized Mating Adapters) are specialized docking structures on the International Space Station that provide a pressurized, sealed interface between visiting spacecraft and the station’s modules.

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All labels observed (6)

Label	Occurrences
ISS Pressurized Mating Adapter	1
ISS Pressurized Mating Adapter-1	1
ISS Pressurized Mating Adapters	1
PMAs (Pressurized Mating Adapters) canonical	1
Pressurized Mating Adapter-1	1
Pressurized Mating Adapters	1

How this entity was disambiguated

This entity first appeared as the object of triple T7918930 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: PMAs (Pressurized Mating Adapters)
Context triple: [Unity (Node 1), connectedTo, PMAs (Pressurized Mating Adapters)]

A. Pressurized Mating Adapter-3
Pressurized Mating Adapter-3 is a docking port on the International Space Station that was used to connect visiting spacecraft and later served as the mounting location for an International Docking Adapter.
B. Pressurized Mating Adapter-2
Pressurized Mating Adapter-2 is a docking adapter on the International Space Station that enables visiting spacecraft to securely connect to the station’s pressurized modules.
C. PM A of the ISS (Pressurized Mating Adapter-2 on Destiny)
PM A of the ISS (Pressurized Mating Adapter-2 on Destiny) is a pressurized docking adapter attached to the Destiny laboratory module that enables visiting spacecraft to securely dock with the International Space Station.
D. Long Duration Propulsive EELV Secondary Payload Adapter
The Long Duration Propulsive EELV Secondary Payload Adapter is a U.S. Space Force payload platform designed to carry and maneuver small satellites in orbit for extended missions using its own propulsion system.
E. International Docking Adapter on ISS
The International Docking Adapter on the ISS is a standardized docking port that enables modern crewed and cargo spacecraft, such as Boeing’s Starliner, to autonomously and safely dock with the space station.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: PMAs (Pressurized Mating Adapters)
Target entity description: PMAs (Pressurized Mating Adapters) are specialized docking structures on the International Space Station that provide a pressurized, sealed interface between visiting spacecraft and the station’s modules.

A. Pressurized Mating Adapter-3
Pressurized Mating Adapter-3 is a docking port on the International Space Station that was used to connect visiting spacecraft and later served as the mounting location for an International Docking Adapter.
B. Pressurized Mating Adapter-2
Pressurized Mating Adapter-2 is a docking adapter on the International Space Station that enables visiting spacecraft to securely connect to the station’s pressurized modules.
C. PM A of the ISS (Pressurized Mating Adapter-2 on Destiny)
PM A of the ISS (Pressurized Mating Adapter-2 on Destiny) is a pressurized docking adapter attached to the Destiny laboratory module that enables visiting spacecraft to securely dock with the International Space Station.
D. Long Duration Propulsive EELV Secondary Payload Adapter
The Long Duration Propulsive EELV Secondary Payload Adapter is a U.S. Space Force payload platform designed to carry and maneuver small satellites in orbit for extended missions using its own propulsion system.
E. International Docking Adapter on ISS
The International Docking Adapter on the ISS is a standardized docking port that enables modern crewed and cargo spacecraft, such as Boeing’s Starliner, to autonomously and safely dock with the space station.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	International Space Station hardware ⓘ Pressurized Mating Adapter ⓘ space station docking adapter ⓘ spacecraft docking system component ⓘ
abbreviation	PMA ⓘ
attachedTo	Harmony module forward port ⓘ Harmony module zenith port ⓘ Unity module ⓘ
compatibleWith	APAS-95 equipped spacecraft ⓘ Space Shuttle Orbiter ⓘ linked to: Space Shuttle orbiter
connectsModule	Unity module ⓘ Zarya module ⓘ linked to: Zarya Functional Cargo Block
connectsTo	APAS-95 docking system ⓘ linked to: APAS docking system Common Berthing Mechanism ⓘ
convertedTo	International Docking Adapter-2 ⓘ linked to: International Docking Adapter on ISS International Docking Adapter-3 ⓘ linked to: Pressurized Mating Adapter-3
convertedToSupport	International Docking System Standard ⓘ
designedFor	Space Shuttle docking ⓘ
developedBy	NASA ⓘ
enables	safe hatch operations between vehicles ⓘ
environment	pressurized to near sea-level pressure ⓘ
function	enable cargo transfer between spacecraft and ISS ⓘ enable crew transfer between spacecraft and ISS ⓘ provide pressurized docking interface ⓘ
hasProperty	pressurized ⓘ sealed ⓘ
hasVariant	PMA-1 ⓘ linked to: PMA-3 PMA-2 ⓘ PMA-3 ⓘ
launchDate	1998-12-04 ⓘ 1998-12-04 ⓘ 2000-10-11 ⓘ
launchedWith	STS-88 ⓘ STS-88 ⓘ STS-92 ⓘ
locatedOn	Harmony module ⓘ International Space Station US Orbital Segment ⓘ linked to: ISS US Orbital Segment Unity module ⓘ linked to: Unity
partOf	ISS docking and berthing system ⓘ
partOfProgram	International Space Station Program ⓘ linked to: International Space Station program
primaryRole	Space Shuttle docking port ⓘ linked to: Shuttle-Mir docking module backup Shuttle docking port ⓘ
providesInterfaceBetween	ISS pressurized modules ⓘ visiting spacecraft ⓘ
usedFor	docking of cargo spacecraft ⓘ docking of crewed spacecraft ⓘ
usedOn	International Space Station ⓘ

How these facts were elicited