Triple

T16257762
Position Surface form Disambiguated ID Type / Status
Subject VeRa E394674 entity
Predicate usesTechnique P3047 FINISHED
Object Doppler tracking
Doppler tracking is a radio science technique that measures frequency shifts in transmitted signals to determine the relative velocity and trajectory of spacecraft or celestial bodies.
 E1202730 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Doppler tracking | Statement: [VeRa, usesTechnique, Doppler tracking]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Doppler tracking
Context triple: [VeRa, usesTechnique, Doppler tracking]
  • A. Doppler Orbitography and Radiopositioning Integrated by Satellite
    Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) is a French-developed satellite tracking and precise orbit determination system used for applications such as geodesy, Earth observation, and satellite navigation.
  • B. Differential GPS
    Differential GPS is an enhanced positioning system that improves the accuracy of standard GPS signals by using ground-based reference stations to correct signal errors.
  • C. Bistatic Radar
    Bistatic radar is a radar system in which the transmitter and receiver are located at separate sites, enabling specialized measurements such as detailed surface and composition analysis of planetary bodies.
  • D. Positioning, Navigation, and Timing
    Positioning, Navigation, and Timing is a U.S. Space Force mission area focused on providing precise location, navigation, and time-reference services—most notably through systems like GPS—to military and civilian users worldwide.
  • E. Search and Rescue Satellite-Aided Tracking payload
    The Search and Rescue Satellite-Aided Tracking (SARSAT) payload is a satellite-borne system that detects and locates distress beacons worldwide to support emergency search and rescue operations.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Doppler tracking
Triple: [VeRa, usesTechnique, Doppler tracking]
Generated description
Doppler tracking is a radio science technique that measures frequency shifts in transmitted signals to determine the relative velocity and trajectory of spacecraft or celestial bodies.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Doppler tracking
Target entity description: Doppler tracking is a radio science technique that measures frequency shifts in transmitted signals to determine the relative velocity and trajectory of spacecraft or celestial bodies.
  • A. Doppler Orbitography and Radiopositioning Integrated by Satellite
    Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) is a French-developed satellite tracking and precise orbit determination system used for applications such as geodesy, Earth observation, and satellite navigation.
  • B. Differential GPS
    Differential GPS is an enhanced positioning system that improves the accuracy of standard GPS signals by using ground-based reference stations to correct signal errors.
  • C. Bistatic Radar
    Bistatic radar is a radar system in which the transmitter and receiver are located at separate sites, enabling specialized measurements such as detailed surface and composition analysis of planetary bodies.
  • D. Positioning, Navigation, and Timing
    Positioning, Navigation, and Timing is a U.S. Space Force mission area focused on providing precise location, navigation, and time-reference services—most notably through systems like GPS—to military and civilian users worldwide.
  • E. Search and Rescue Satellite-Aided Tracking payload
    The Search and Rescue Satellite-Aided Tracking (SARSAT) payload is a satellite-borne system that detects and locates distress beacons worldwide to support emergency search and rescue operations.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d87f221d8081909b0b2063e7528ba2 completed April 10, 2026, 4:40 a.m.
NER Named-entity recognition batch_69e245c1fa208190995feaeba766b45f completed April 17, 2026, 2:37 p.m.
NED1 Entity disambiguation (via context triple) batch_6a000eebcfe481909822290d3a7b361c completed May 10, 2026, 4:51 a.m.
NEDg Description generation batch_6a000f8cca5081909db58e092028e469 completed May 10, 2026, 4:54 a.m.
NED2 Entity disambiguation (via description) batch_6a001057f9088190925492033bcd4c8d completed May 10, 2026, 4:58 a.m.
Created at: April 10, 2026, 5:04 a.m.