US Space Command

US Space Command Authentication API

Session-based authentication

Documentation GitHub OpenAPI

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OpenAPI Specification

openapi: 3.0.1
info:
  title: Space-Track.org REST Authentication API
  description: Space-Track.org is the official US Space Command (USSPACECOM) source for space situational awareness data. The REST API provides access to the satellite catalog (SATCAT), orbital element sets (GP/TLEs), conjunction data messages (CDMs), decay predictions (TIP), and space object history. Requires a free account. Authenticate via POST to /ajaxauth/login then use session cookies for subsequent requests.
  version: '1.0'
  contact:
    name: US Space Command / 18th Space Defense Squadron
    url: https://www.space-track.org
servers:
- url: https://www.space-track.org
security:
- sessionCookie: []
tags:
- name: Authentication
  description: Session-based authentication
paths:
  /ajaxauth/login:
    post:
      tags:
      - Authentication
      operationId: login
      summary: Authenticate with Space-Track.org
      description: Authenticate using username and password credentials. On success, a session cookie is returned for use in subsequent API requests.
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - identity
              - password
              properties:
                identity:
                  type: string
                  description: Space-Track.org username (email address)
                password:
                  type: string
                  format: password
                  description: Space-Track.org password
      responses:
        '200':
          description: Authentication successful — session cookie returned
        '401':
          description: Invalid credentials
components:
  securitySchemes:
    sessionCookie:
      type: apiKey
      in: cookie
      name: chocolatechip
      description: Session cookie obtained after successful login via POST /ajaxauth/login