Public release of Metop-C IASI Level 1 data

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Metop-C IASI Level 1 data will be available on EUMETCast from 1 July.

Monday, 24 June 2019

First Metop-C IASI Spectrum

The IASI Level 1 data from Metop-C have been successfully validated and have operational quality.

Product Validation Report

The IASI Level 1C data, both the full spectral samples and the reduced spectral samples, as well as the Level 1 Principal Component Scores will be distributed on EUMETCast Europe:

  • On 1 July, they will be available on the High Volume Service Transponder 1 (HVS-1):
    • Channel: E1H-EPS-11
    • Multicast address:
    • PID: 600
  • From 2 July, they will be available on the Basic Service
    • Channel: EPS-11
    • Multicast address:
    • PID: 500

(please see:

They will also be distributed on EUMETCast Terrestrial:

Channel: T01-EPS-C-11
Multicast address:

Example filenames:


IASI Principal Component Scores:

Note: When the Metop-C satellite is declared ‘secondary operational’ on 3 July 2019, ‘_C_’ in the filename will become ‘_O_’.

The new Noise Covariance Matrix (NCM) and IASI User Spectral Data Base (SDB) can be found here:

See: IASI_NCM_xx_M03_20190404000000Z_20190404000000Z_20190403092554Z_IAST_SPECTRESPO

A technical note (IA-TN-0000-3274-CNE_0200.pdf) and a tool to read the noise covariance matrix ( are also available.

See: IASI_SDB_xx_M03_20190404000000Z_20190404000000Z_20190403091458Z_IAST_IASISPECDB

A technical note (IA-TN-0000-3273-CNE_0100.pdf) is also available.

Users wishing to receive Metop-C IASI Level 1 data data should register via our Earth Observation Portal (EOP).

For more information, contact our User Service Helpdesk.

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