---
title: "List Screening Primaries"
method: GET
path: "/screenings/{id}/primaries"
tags: ["Screening"]
---

# List Screening Primaries

`GET /screenings/{id}/primaries`

Get the list of primaries for a screening.

## Path parameters

- `id` string, uuid, required

## Query parameters

- `filters` string, nullable
- `sort_field` string
- `sort_direction` 'asc' | 'desc'
- `offset` integer
- `count` integer
- `fields` string

## Response `200`

Successful Response

- OffsetPageResultPrimaryReadWithCoverage
  - `pagination` OffsetPagination, required
    - `offset` integer — Offset in the collection to begin the page.
    - `count` integer — Number of items to retrieve. 0 returns all items.
  - `items` PrimaryReadWithCoverage[], required
    - `id` string, uuid, required
    - `ephemeris_id` string, uuid, nullable
    - `catalog_id` string, uuid, nullable
    - `propagation_id` string, uuid, nullable
    - `ephemeris` EphemerisMetadataWithRSO
      - `id` string, uuid, nullable
      - `rso_id` string, uuid, nullable
      - `filename` string, nullable
      - `data_format` 'hdf5' | 'original' | 'gem'
      - `custom_storage_path` string, nullable
      - `altitude_km` number, nullable
      - `repository_public` boolean
      - `event_public` boolean
      - `shared_event_keys` EphemerisViewer[], nullable
        - `ephemeris_id` string, uuid, nullable
        - `event_key_number` integer, nullable
      - `rso` RSORead
        - `id` string, uuid, required
        - `norad_id` integer, nullable
        - `international_designator` string, nullable
        - `object_type` string, nullable
        - `object_type_category` string, nullable
        - `object_name` string, nullable
      - `user_id` string, uuid, nullable
      - `group_id` string, uuid, nullable
      - `covariance_corrected` boolean, nullable
      - `source_ephemeris_id` string, uuid, nullable
      - `norad_id` integer, nullable
      - `ephemeris_source` 'CATALOG' | 'SPACE_TRACK_PUBLIC' | 'SPACE_TRACK_PUBLIC_SATCAT' | 'PATHFINDER_API' | 'SATCAT_API' | 'USER_SCREENER' | 'TERTIARY_SCREENER' | 'PATHFINDER_AUTO_THIRDPARTY' | 'KAYHAN_INTERNAL_PROCESS' | 'EXTRACTED_FROM_CDM' | 'PATHFINDER_SCREENER_THIRDPARTY' | 'STARLINK_API_PUBLIC' | 'PUBLIC_REPOSITORY' | 'STARLINK_STC_API', required
      - `solution_time` string, date-time, nullable
      - `has_covariance` boolean, required
      - `ephemeris_type` 'ON_ORBIT' | 'LAUNCH', required
      - `discontinuities` string[]
      - `comments` string, nullable
      - `apogee_km` number, required
      - `perigee_km` number, required
      - `archived` boolean
      - `hbr_m` number, nullable
      - `current_operational` boolean
      - `launch_time` string, date-time, nullable
      - `usable_time_start` string, date-time, nullable
      - `usable_time_end` string, date-time, nullable
      - `context` 'ROUTINE' | 'COLA' | 'MAINTENANCE' | 'NOVEL' | 'DECAY'
      - `designation` 'OPERATIONAL' | 'PREDICTIVE' | 'DEFINITIVE' | 'THEORETICAL' | 'TLE'
      - `catalog` CatalogMinimalRead
        - `ephemerides_count` integer, required
        - `id` string, uuid, required
        - `created_at` string, date-time, required
        - `catalog_type` 'SP' | 'TLE' | 'CUSTOM', required
        - `epoch` string, date-time, required
        - `archived` boolean
        - `filename` string, nullable
        - `ready` boolean
        - `data_format` string, nullable
        - `usable_time_start` string, date-time, nullable
        - `usable_time_end` string, date-time, nullable
        - `archive_protected` boolean
    - `catalog` CatalogPreviewWithEphemeridesCount
      - `id` string, uuid, required
      - `catalog_type` 'SP' | 'TLE' | 'CUSTOM', required
      - `epoch` string, date-time, required
      - `archived` boolean
      - `filename` string, nullable
      - `ready` boolean
      - `data_format` string, nullable
      - `usable_time_start` string, date-time, nullable
      - `usable_time_end` string, date-time, nullable
      - `archive_protected` boolean
      - `ephemerides_count` integer, required
    - `propagation` PropagationRead
      - `id` string, uuid, required
      - `created_at` string, date-time, nullable
      - `status` 'CREATED' | 'PENDING' | 'RUNNING' | 'SUCCESS' | 'FAILURE' | 'CANCELED', required
      - `ephemeris_id` string, uuid, nullable
      - `start_time` string, date-time, nullable
      - `end_time` string, date-time, nullable
      - `started_at` string, date-time, nullable
      - `completed_at` string, date-time, nullable
      - `target_duration` number, nullable
      - `timestep` number, nullable
      - `enable_discontinuities` boolean
      - `maneuver_count` integer
      - `state_vector` StateVectorRead
        - `id` string, uuid, required
        - `norad_id` integer, nullable
        - `object_name` string, nullable
        - `pos_x` number, required
        - `pos_y` number, required
        - `pos_z` number, required
        - `pos_unit` string, required
        - `vel_x` number, required
        - `vel_y` number, required
        - `vel_z` number, required
        - `vel_unit` string, required
        - `timestamp` string, date-time, required
        - `frame` string, required
        - `mass` number, required
        - `coeff_drag` number, nullable
        - `coeff_rad` number, nullable
        - `area_drag` number, nullable
        - `area_rad` number, nullable
        - `covariance` CovarianceMatrixRead
          - `data` number[], required
          - `format` string, required
          - `frame` string, required
          - `length_unit` string, required
      - `forces` ForceModelRead
        - `id` string, uuid, required
        - `earth_model` string, nullable
        - `geopotential` boolean
        - `geopotential_degree` integer, nullable
        - `geopotential_order` integer, nullable
        - `drag` boolean
        - `drag_model` string, nullable
        - `third_bodies` boolean
        - `third_bodies_list` string, nullable
        - `solid_tides` boolean
        - `solar_radiation_pressure` boolean
        - `ocean_tides` boolean
        - `oceantides_degree` integer, nullable
        - `oceantides_order` integer, nullable
      - `maneuvers` ManeuverRead[], nullable
        - `id` string, uuid, required
        - `type` string, required
        - `ignition_epoch` string, date-time, required
        - `delta_mass` number, nullable
        - `ref_frame` string, nullable
        - `deltav_x` number, nullable
        - `deltav_y` number, nullable
        - `deltav_z` number, nullable
        - `deltav_unit` string, nullable
        - `thrust_x` number, nullable
        - `thrust_y` number, nullable
        - `thrust_z` number, nullable
        - `thrust_unit` string, nullable
        - `duration` number, nullable
        - `specific_impulse` number, nullable
        - `rso_id` string, uuid, nullable
      - `tle` TLERead
        - `id` string, uuid, required
        - `object_name` string, nullable
        - `line1` string, nullable
        - `line2` string, nullable
      - `tle_id` string, uuid, nullable
      - `state_vector_id` string, uuid, nullable
      - `rso` RSORead
        - `id` string, uuid, required
        - `norad_id` integer, nullable
        - `international_designator` string, nullable
        - `object_type` string, nullable
        - `object_type_category` string, nullable
        - `object_name` string, nullable
    - `usable_time_start` string, date-time, nullable
    - `usable_time_end` string, date-time, nullable
    - `interest_interval_start` string, date-time, nullable
    - `interest_interval_end` string, date-time, nullable
    - `coverage_level` 'NO_OVERLAP' | 'PARTIAL' | 'FULL'
    - `coverage_ratio` number, nullable
  - `total_count` integer, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/satcat/apis/satcat-service-api.md) · [All operations](https://skmtc.net/satcat/apis/satcat-service-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/satcat/satcat-service-api/versions/afeec2546de3/schema)