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Daidaitaccen Precise Point Positioning (PPP) a Gajimare

Yi amfani da kayayyakin duniya don lissafin daidaitattun maki a yankuna masu nisa da cikin teku ba tare da tashoshin base ba.

Processing needs an account. This panel is a first step: it checks your file and needs no account.

Fara Lissafin PPP

Quick check, no account

Upload an observation file or open a sample to see its quality score and key findings.

One file up to 100 MB (20 MB gzipped), ten checks per day. The file is deleted as soon as the result is ready.

Quick question, so we know you are a person

Choose a file first

No file? Use a public station
Bundled sample

Opens a stored example result straight away and does not use one of your daily checks.

Live archive day

Fetches a station's daily observation file from the public archives and checks it. It needs the person check above and uses one of your daily checks.

Between 2010-01-01 and 2026-10-17 (UTC).
Try:

Fasalolin Injin PPP

  • Hanyoyin lissafi na zamani don saurin lissafi da warware duhun sigina
  • Goyon bayan kewayon taurari na ƙarshe da na gaggawa na International GNSS Service (IGS)
  • Samfurin nauyin igiyar ruwan teku (Ocean Tide Loading) da yanayin troposphere
  • Ingantattun sakamako a tsarin daidaitawa na ITRF2014 da ITRF2020

How to compute precise point positioning (PPP) online

Process single-station RINEX observations and review the PPP solution, processing settings and quality indicators.

  1. Upload observation session

    Upload RINEX observations with the signals, time coverage and station metadata required by the selected processing mode.

  2. Select antenna model and height

    Specify antenna model from the absolute calibration database and enter antenna reference point (ARP) height.

  3. Automated ephemeris pairing

    The system pairs matching IGS, CODE, or GFZ final/rapid precise orbits and satellite clock corrections.

  4. Solve and download coordinates

    Review converged coordinates in ITRF/WGS84, formal standard deviations, residual plots, and processing reports.

What won't produce a result

Worth checking before you upload, so a run doesn't cost you credits to tell you what your data was missing.

A short or discontinuous static observation session

A long enough, uninterrupted observation window. PPP resolves ambiguities through convergence, and a short or frequently broken session may never converge on a stable coordinate.

A session with frequent cycle slips

Continuous carrier-phase tracking. Repeated slips reset the convergence the solution depends on, the same way restarting a session would.

Single-frequency-only observations

Dual-frequency (or better) tracking. A single frequency carries no way to form the ionosphere-free combination the solution needs to cancel that delay.

Common questions

Yaya tsawon bayanan da ake bukata don lissafin PPP?

Don samun daidaito a matakin santimita, ana ba da shawarar aƙalla sa’o’i 1 zuwa 2 na bayanan lura na tsaye.

Related technical guides

Standards & Specifications

Apex requires Pro or above and processing credits. View plans and usage costs

Fara Lissafin PPP