---
title: "Profections"
method: POST
path: "/profections"
tags: ["Prognostics"]
---

# Profections

`POST /profections`

Calculate annual profections: profected Ascendant, lord of the year, activated house, and monthly profection sub-rulers.

## Request body

- NatalTarget — Natal chart plus a target date for time-based calculations: progressions, directions, profections, returns.
  - `date` string, required
  - `time` string, required
  - `timezoneOffset` number, nullable
  - `latitude` number, nullable
  - `longitude` number, nullable
  - `houseSystem` string
  - `name` string
  - `city` string
  - `zodiacType` 'tropical' | 'sidereal'
  - `ayanamsaId` number, nullable
  - `cosmogram` boolean
  - `targetDate` string, required
  - `targetTime` string
  - `targetTzOffset` number, nullable
  - `converse` boolean

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `age` number, nullable
    - `profectedAscendant` number, nullable
    - `profectedSign` string, nullable
    - `activatedHouse` number, nullable
    - `lordOfYear` string, nullable
    - `monthlyProfections` object[], nullable
      - `month` number, nullable
      - `house` number, nullable
      - `sign` string, nullable
      - `lord` string, nullable

## Other responses

- `400` — Validation error
- `401` — Missing or invalid API key

---

[API](https://skmtc.dev/astroway/apis/astroway-calculation-api.md) · [All operations](https://skmtc.dev/astroway/apis/astroway-calculation-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/astroway/astroway-calculation-api/revisions/793e5c2dbcdf/schema)