User's manual

MJD of today


            

            

Starting MJD of forecast


            

            

What is MJD


Download forecasts:

Download

SSA Forecast Parameters

Parameter L, window length (or length of time series lag) for decomposition.
Number of first eigen components to use for decomposition and forecasting.
Length of forecast being generated.
Base period is a period of time preceding to the forecast which, based on which the forecast will be generated.


Generated Forecast

Choose date after 01.01.2010



Download

MSE


Pole x

Pole y

LOD

dX

dY

This site was created as a part of Graduation Project (in Russian, 2017) of Grigory Okhotnikov, Master student of Saint Petersburg State University.

Scientific supervisor: Associate Professor Nina Golyandina, PhD, SPbU.

Sources of forecasts for comparison:

  1. IERS Bulletin A
  2. Pulkovo Observatory, Saint Petersburg

Relevant Sources:

  1. Analysis of Time Series Structure: SSA and Related Techniques - Nina Golyandina, Vladimir Nekrutkin, Anatoly Zhigljavsky
  2. Caterpillar-SSA website
  3. Rssa package GitHub repository
  4. Earth Orientation Parameters C04 Guide

View the source code on GitHub.

By arithmometer. Powered by R Shiny.