---
title: "Changes to POST /udl/passiveradarobservation"
method: POST
path: "/udl/passiveradarobservation"
---

# Changes to POST /udl/passiveradarobservation

`POST /udl/passiveradarobservation`

> Every recorded change to this operation, newest first.
> 12 revisions in range; 1 could not be searched.

## Timeline

Changed in 2 of 12 revisions.

- **2026-04-09** `bd17bc53681e`: 5 info
- **2025-04-16** `75f764c843a9`: 1 breaking, 1 warning, 2 info

## Changes

- **2026-04-09** `bd17bc53681e`: 5 info
  - added the new optional request property `senReferenceFrame`
  - added the new optional request property `senx`
  - added the new optional request property `seny`
  - added the new optional request property `senz`
  - added the non-success response with the status `429`
- **2025-04-16** `75f764c843a9`: 1 breaking, 1 warning, 2 info
  - request body became required
  - the `alt` request property's min was set to `0.00`
  - api operation id `create_89` removed and replaced with ``
  - the endpoint scheme security `BasicAuth` was removed from the API

---

[Operation](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/docs/udl/passiveradarobservation/post.md) - [API](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api.md) - [Page](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/changes/udl/passiveradarobservation/post)