Valar Logo
  • Blog
  • Contact
Log inTalk to Sales
Changelog·12 May 2026
12 May 2026

Doppler (range-rate) measurements in orbit determination

Doppler (range-rate) measurements in OD

Doppler is now a first-class measurement type alongside range and angles. Pick DOPPLER in the OD measurement-type selector, set the two-way convention on each ground-station sensor, and inspect a dedicated Doppler residuals tab on every OD result. CCSDS TDM blocks containing DOPPLER_INSTANTANEOUS rows ingest into the same OD pipeline as range and angles — VALAR normalises the producer-side observable to the internal one-way / two-way MEAN range-rate convention and carries band, transponder-delay, and correction-state metadata through to the solver.

  • Doppler in TDM →
  • Orbit determination →
Fixes
  • TDM measurement imports — multi-block TDM uploads now correctly preserve the sensor ID declared on each block, so per-block measurements no longer collapse onto the first block's sensor.
API
  • Legacy /api-docs Swagger UI retired — the legacy customer-facing OpenAPI group at /api-docs and its Swagger UI have been removed. The current API reference lives at docs.valar.space/api-reference.

Ready to Transform Your Operations?

Experience the future of flight dynamics with Valar. Get started today and see how we can help you manage your spacecraft more efficiently.

Talk to Sales
Valar Logo

40.4378° N, 3.6795° W
Maria de Molina 39, 28006 Madrid, Spain

© VALAR SPACE, S.L. 2022 - 2026. All rights reserved.

Product

  • Orbits
  • Maneuvers
  • Space Traffic

Resources

  • Documentation
  • Changelog
  • About

Legal

  • Terms of Service
  • Privacy Policy
  • Cookie Policy