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EOP Prediction Users. W. Wooden, D. McCarthy, B. Luzum. User Information. Sources of Information Survey questionnaires Product usage Interactive feedback Future Expectations?. Operational System Engineers Academics Scientists. Who are the Users?. Positioning and Navigation.

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Eop prediction users

EOP Prediction Users

W. Wooden, D. McCarthy,

B. Luzum


User information
User Information

  • Sources of Information

    • Survey questionnaires

    • Product usage

    • Interactive feedback

  • Future Expectations?


Who are the users

Who are the Users?


Why do they want predictions

Positioning

and

Navigation

Research

Pointing

Timekeeping

Why do they want predictions?


What do they want

Users’ Manual

  • Data

  • Accurate

  • Dependable

  • User friendly

DELIVER ON DEMAND

SOFTWARE

With Test Data

What do they want?

It depends on the application


General requirements
General Requirements

  • One unique set of IERS prediction products

  • Easily accessible

  • User friendly

  • Reliable

  • Meets users’ needs for

    • Accuracy

    • Update frequency

    • Spacing

    • Prediction interval

    • Metadata


Accuracy

Operational and Scientific Users of Polar Motion Predictions

Operational and Scientific Users of UT1-UTC Predictions

Accuracy?


Prediction length

Scientific Users

Prediction Length?

Operational Users


Update frequency

Scientific Users

Update Frequency?

Operational Users


Spacing
Spacing?

Operational Users

Scientific Users

(Some also want analytical expressions)


How do they want to receive predictions
How do they want to receive predictions?

Operational Users

Scientific Users


Future users
Future Users?

  • Probably about the same mix of operational and scientific users

  • Some “specialty” users

  • Real-time availability

    • Particularly UT1

  • Order of magnitude improvement in accuracy

  • New Products


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