# Ephemeris Precision Moment – JPL DE440 Full Chart

> Ephemeris Precision Moment – JPL DE440 Full Chart is a paid API for AI agents from ephemeris.561.group, paid per call via x402, $0.32/call, status unknown (last checked 2026-09-14).

Returns a full precision astrological chart for one exact UTC datetime and Earth location, including apparent planetary positions, house cusps, Ascendant/MC, lunar nodes, Arabic lots, sect, dignities, and expanded aspect data backed by JPL DE440 ephemeris.

## Facts

- Endpoint: GET https://ephemeris.561.group/v1/ephemeris/precision-moment/:date
- Price: $0.32/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ephemeris-precision-moment-jpl-de440-full-chart-7db34ab8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oYg78JKtmIV-eAXiN6xob

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ephemeris-precision-moment-jpl-de440-full-chart-7db34ab8
```

Example prompt: Get me the full JPL DE440-backed precision astrology chart for 1990-06-15T14:32:00Z at latitude 40.7128 and longitude -74.0060 — I need planetary positions, house cusps, Ascendant, MC, lunar nodes, Arabic lots, dignities, and all aspects.

## When to prefer this

Choose this endpoint when you need the most comprehensive astrological chart data for a single moment — including houses, Ascendant/MC, nodes, lots, dignities, sect, and full aspect data — backed by the authoritative JPL DE440 ephemeris. Prefer this over the sibling 'Moment Essentials' endpoint when you need more than just the 10 basic body positions and require cross-engine measurement evidence or the full suite of derived astrological points.

## Known failure modes

- Invalid or malformed UTC date string returns a 400 error
- Missing or out-of-range latitude/longitude returns a validation error
- Dates outside JPL DE440 coverage range may return an error or degraded results
- Unrecognized house system parameter returns a 400 error
- Network timeout if ephemeris computation takes longer than expected

## How this service works

Precision Moment: JPL DE440-backed astrology for one exact UTC instant and Earth location—raw apparent positions, houses, Ascendant/MC, nodes, lots, sect, dignities, expanded aspects, and cross-engine measurement evidence.

## Output

Returns a comprehensive astrological dataset for the requested moment including: apparent tropical positions for 10+ celestial bodies, house cusps for the selected house system, Ascendant and Midheaven, mean and true lunar nodes, Arabic lots (e.g. Part of Fortune), sect determination, essential and accidental dignities, a full expanded aspect table, and cross-engine measurement evidence for validation — all computed using the JPL DE440 ephemeris.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ephemeris-precision-moment-jpl-de440-full-chart-7db34ab8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ephemeris.561.group](https://www.zero.xyz/host/ephemeris.561.group/llms.txt)