SM4
E906299
SM4 is the fourth and final NASA space shuttle servicing mission to the Hubble Space Telescope, conducted in 2009 to upgrade and extend the observatory’s capabilities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SM4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11108724 — 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: SM4 Context triple: [Hubble Servicing Mission 4, alsoKnownAs, SM4]
-
A.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
-
B.
Twofish
Twofish is a symmetric key block cipher known for its speed, flexibility, and strong security, and was a finalist in the competition to become the Advanced Encryption Standard (AES).
-
C.
CAST6
CAST6 is a symmetric-key block cipher designed as an enhanced, more secure successor to the CAST5 encryption algorithm.
-
D.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
E.
RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
- 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: SM4 Target entity description: SM4 is the fourth and final NASA space shuttle servicing mission to the Hubble Space Telescope, conducted in 2009 to upgrade and extend the observatory’s capabilities.
-
A.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
-
B.
Twofish
Twofish is a symmetric key block cipher known for its speed, flexibility, and strong security, and was a finalist in the competition to become the Advanced Encryption Standard (AES).
-
C.
CAST6
CAST6 is a symmetric-key block cipher designed as an enhanced, more secure successor to the CAST5 encryption algorithm.
-
D.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
E.
RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Hubble Space Telescope servicing mission
ⓘ
NASA spaceflight mission ⓘ Space Shuttle servicing mission ⓘ |
| addedHardware | Soft Capture Mechanism ⓘ |
| alsoKnownAs | Hubble Servicing Mission 4 ⓘ |
| associatedWith | Hubble Space Telescope ⓘ |
| backupMission | STS-400 rescue mission (never flown) ⓘ |
| commander | Scott D. Altman ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crewSize | 7 ⓘ |
| fullName | Servicing Mission 4 ⓘ |
| installedInstrument |
Cosmic Origins Spectrograph
ⓘ
Wide Field Camera 3 ⓘ |
| isFinal | final Hubble servicing mission by Space Shuttle ⓘ |
| landingDate | 2009-05-24 ⓘ |
| launchDate | 2009-05-11 ⓘ |
| launchSite | Kennedy Space Center Launch Complex 39A ⓘ |
| missionDesignation | STS-125 ⓘ |
| missionDuration | about 12 days ⓘ |
| missionNumberInProgram | 30th flight of Space Shuttle Atlantis ⓘ |
| missionSpecialist |
Andrew J. Feustel
ⓘ
John M. Grunsfeld ⓘ K. Megan McArthur ⓘ
linked to:
Megan McArthur
Megan McArthur ⓘ Michael J. Massimino ⓘ Michael T. Good ⓘ |
| missionTo |
Low Earth orbit
ⓘ
linked to:
low Earth orbit
|
| missionType | Servicing and upgrade mission ⓘ |
| NASAProgram |
Space Shuttle program
ⓘ
linked to:
NASA Space Shuttle program
|
| numberOfSpacewalks | 5 ⓘ |
| objective |
Extend Hubble Space Telescope operational life
ⓘ
Repair failed Hubble components ⓘ Upgrade Hubble Space Telescope instruments ⓘ |
| operator | NASA ⓘ |
| orbitAltitude | ~560 kilometers ⓘ |
| orbitInclination | ~28.5 degrees ⓘ |
| pilot | Gregory C. Johnson ⓘ |
| policyContext | approved as an exception to post-Columbia safety rules for shuttle missions ⓘ |
| precededBy |
Servicing Mission 3B
ⓘ
linked to:
Hubble Space Telescope Servicing Mission 3B
|
| repairedInstrument |
Advanced Camera for Surveys
ⓘ
Space Telescope Imaging Spectrograph ⓘ |
| replacedComponent |
Batteries
ⓘ
Rate sensor units (gyroscopes) ⓘ Science Instrument Command and Data Handling Unit ⓘ
linked to:
Command and Data Handling subsystem
|
| result | Hubble Space Telescope life extended into the 2010s ⓘ |
| riskContext | conducted after Columbia (STS-107) accident ⓘ |
| spacecraft | Space Shuttle Atlantis ⓘ |
| target | Hubble Space Telescope ⓘ |
| totalEVAHours | 36.5 hours (approximate) ⓘ |
| year | 2009 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SM4 Description of subject: SM4 is the fourth and final NASA space shuttle servicing mission to the Hubble Space Telescope, conducted in 2009 to upgrade and extend the observatory’s capabilities.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.