Global Reference Frame VLBI solution VIE2023 (SX&VG)

Context and methodology

• Global reference frame solution from Very Long Baseline Interferometry based on IVS data at S/X-band and VGOS
• Celestial Reference Frame: Source positions are in the J2000 frame, but at the 2015.0 galactic aberration epoch. Reported source position errors are inflated with scaling factors:  1.5 RA,  1.5 De, and a RA/Dec noise floor 30/ 30 micro-arc-sec is applied.
• Terrestrial Reference Frame: reference epoch 2015.0 and linear velocity
• Earth Orientation Parameters: reported is one offset per session

Technical details

• GENERATION_TIME:  2024-03-20T21:37:10
• DATA_START:  1979-08-03T00:00:00
• DATA_END:  2023-12-29T00:00:00
• ANALYSIS_CENTER:  VIE (TU Wien, Austria)
• CONTACT:   VIE Analysis Center (vlbi_contact@tuwien.ac.at)
• SOFTWARE:  VieVS v3.2
• TECHNIQUE:  VLBI 
• FREQUENCY BANDS:  S/X + VGOS
• DESCRIPTION:  Earth orientation parameters from the VLBI global solution S/X + VGOS (session-wise reduced parameters)