Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
celestial reference frame
|
| gptkbp:accuracy |
~30 microarcseconds
|
| gptkbp:adoptedBy |
gptkb:International_Astronomical_Union
2018 |
| gptkbp:coordinateAxes |
declination
right ascension |
| gptkbp:definedIn |
positions of extragalactic radio sources
|
| gptkbp:epoch |
gptkb:J2000.0
|
| gptkbp:frequency |
K
S/X X/Ka |
| gptkbp:fullName |
International Celestial Reference Frame, third realization
|
| https://www.w3.org/2000/01/rdf-schema#label |
ICRF3
|
| gptkbp:maintainedBy |
gptkb:International_Earth_Rotation_and_Reference_Systems_Service
|
| gptkbp:numberOfSources |
4536
|
| gptkbp:precededBy |
ICRF2
|
| gptkbp:primaryUse |
defining the celestial reference system
|
| gptkbp:referenceFrameType |
quasi-inertial
|
| gptkbp:referencePoint |
International Celestial Reference System
|
| gptkbp:replacedBy |
ICRF2
|
| gptkbp:successor |
None (as of 2024)
|
| gptkbp:usedFor |
astrometry
space navigation VLBI observations |
| gptkbp:bfsParent |
gptkb:International_Celestial_Reference_Frame
gptkb:International_Celestial_Reference_Frame_(ICRF) |
| gptkbp:bfsLayer |
7
|