Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
cesium fountain atomic clock
|
| gptkbp:accuracy |
uncertainty of less than 2 x 10^-16
|
| gptkbp:activeYearsStart |
2013
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:developedBy |
gptkb:National_Institute_of_Standards_and_Technology
|
| https://www.w3.org/2000/01/rdf-schema#label |
NIST-5
|
| gptkbp:location |
gptkb:Boulder,_Colorado
|
| gptkbp:predecessor |
gptkb:NIST-F1
|
| gptkbp:purpose |
realization of the SI second
|
| gptkbp:status |
operational
|
| gptkbp:technology |
laser-cooled cesium atoms
|
| gptkbp:usedFor |
timekeeping
frequency standard |
| gptkbp:bfsParent |
gptkb:NIST-6
|
| gptkbp:bfsLayer |
8
|