Explanation

The sounders aboard low earth orbit (LEO) satellites provide numerical weather prediction (NWP) centers with essential observational information for generating atmospheric analysis fields. The Direct Broadcast Network (DBNet) is an operational arrangement under the World Meteorological Organization (WMO) that provides NWP centers with data received at direct readout stations within 30 minutes of observation.

This page presents the operational information on JMA as a direct readout station, and outlines the status of all Asia-Pacific DBNet data collected in Tokyo via the Global Telecommunication System (GTS) regarding navigation, calibration and timeliness.

Operational Information

Events

Jun. 17th, 2025
JMA stopped the dissemination of direct readout data from NOAA-18 and -19.

Mar. 5th, 2024
"TBB Monitor" is available.

Specification of Our facilities

• Readout Stations and processing packages

DR Schedule

• Daily Schedule of Direct Readout at Kiyose

• Maps of Receivable Orbits
• Monthly Diagrams of Receivable Satellite Passage Times

Monitoring Asia-Pacific DBNet products

Comparison with Global ATOVS Data

• Navigation Difference Time Series
• See also NWP SAF: DBNet Overview and Data Monitoring

Timeliness of RARS Data at Tokyo

• Timeliness of RARS Data at Tokyo

TBB Monitor

• JMA

Links

• WMO Space Programme — DBNet
• BoM (Australian Bureau of Meteorology) — A-P RARS
• Regional Data Service / EARS — EUMETSAT
• NWP SAF: DBNet Overview and Data Monitoring
• NWP SAF: ATOVS and AVHRR Pre-processing Package (AAPP)
• CIMSS: Community Satellite Processing Package (CSPP)