International Terrestrial Reference Frame (ITRF) Value Stream
F1 · Multi-Technique Ground Tracking
EGV Level: Basis
Co-located sites
GNSS
SLR · DORIS
VLBI
Capabilities (avg maturity)
DORIS Data Acquisition and Storage4.0
Equipment Calibration and Maintenance3.3
GNSS Data Acquisition and Storage3.5
Ground-Based Asset Management2.5
SLR Data Acquisition and Storage3.0
VLBI Data Acquisition and Storage3.0
Weakest: Ground-Based Asset Management (2.5)
F2 · Co-Location Local Tie Surveys
EGV Level: Basis → Level 1
Local tie surveys
Capabilities (avg maturity)
Local Tie2.0
Weakest: Local Tie (2.0)
F3 · First-Mile Telemetry & Data Transport
EGV Level: Basis → Level 1
Near-real-time push
Scheduled uploads
e-VLBI transfer
Capabilities (avg maturity)
Network Operations2.0
Weakest: Network Operations (2.0)
F4 · Global Archiving & Synchronization
EGV Level: Level 1
Global Data Centres ×3 — CDDIS (NASA GSFC) · IGN · SIO
Capabilities (avg maturity)
Data Preservation2.0
Data Quality Management2.0
Metadata Management2.0
Weakest: Data Preservation (2.0)
F5 · VLBI Correlation & Delay Extraction
EGV Level: Level 1 (intermediate)
VLBI correlators
Capabilities (avg maturity)
Geodetic Software and Tools2.0
Weakest: Geodetic Software and Tools (2.0)
F6 · Intra-Technique Analysis
EGV Level: Level 1 → 2 (intermediate)
IDS (DORIS)
IGS (GNSS)
ILRS (SLR)
IVS (VLBI)
Capabilities (avg maturity)
DORIS Data Processing and Analysis3.8
GNSS Data Processing and Analysis3.8
Local Tie Processing and Analysis2.0
SLR Data Processing and Analysis3.5
VLBI Data Processing and Analysis2.3
Weakest: Local Tie Processing and Analysis (2.0)
F7 · ITRS Combination & Stacking (IGN / CATREF)
EGV Level: Level 3 (Global Reference Frames — ITRF)
ITRS Product Center (IGN) — CATREF stacking
IGN candidate ITRF
Capabilities (avg maturity)
Geodetic Data Products (EOP Clocks Orbits Station Positions Gravity Models))2.8
Knowledge Management1.3
Local Tie Processing and Analysis2.0
Reference Frames3.0
Weakest: Knowledge Management (1.3)
F8 · Independent Cross-Validation
EGV Level: Level 3 (pre-designation)
DGFI-TUM · DTRF
NASA JPL · JTRF
Comparison with IGN candidate
Capabilities (avg maturity)
Regulatory Compliance3.0
Weakest: Regulatory Compliance (3.0)
F9 · Formal Designation & Dissemination
EGV Level: Level 3 (validated Global Reference Frame)
Discrepancy review & formal designation
Dissemination
Capabilities (avg maturity)
Data Distribution2.0
Geodetic Services2.0
Weakest: Data Distribution (2.0)
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