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MTSAT

MTSAT series

The MTSAT series fulfill two functions: that is a meteorological function and an aeronautical function. MTSATs have been placed at an altitude of about 36,000km above the equator, and its satellites have always observed a vast area within a 6,000-km radius of a point just underneath the spacecraft, covering approximately a quater of the earth's surface.
MTSAT-2, which sits in geostationary orbit at 145° E, has one visible and three infrared channels as well as MTSAT-1R. These channels have ability to detect fog at nighttime, and to observe sea surface temperature.
During MTSAT-2 operation, MTSAT-1R is placed in standby mode at 140° E. In the event that MTSAT-2 malfunctions and loses observation capability, MTSAT-1R will take over its role to continue meteorological observation.


MTSAT-1R
Status Standby
Operation period from 2005 to 2010
Position 35,800km above the equator
at 140 degrees East longitude

MTSAT-2 (Himawari-7)
Status Operational
Operation period from 2010 to 2015 (plan)
Position 35,800km above the equator
at 145 degrees East longitude


Himawari-8/9
Next-generation geostationary meteorological satellite, Himawari-8, in 2014 and to start its operation in 2015 as a replacement for MTSAT-2 (also called Himawari-7). Himawari-9 will also be launched in 2016 as a backup and successor satellite. Both satellites will be located at around 140 degrees east, and will observe the East Asia and Western Pacific regions for a period of 15 years. Himawari-8/9 will have a new imager with 16 bands, which is more than three times the 5 bands of the current MTSAT series. Three of these will be visible bands corresponding to red, green and blue to enable the creation of true-color images. Observation frequency will also be enhanced, with full-disk imagery obtained every 10 minutes. In addition, rapid scanning will be conducted in several regions, one of which will be for targeted observation of tropical cyclones.
Imagery from JMA’s current operational satellite, MTSAT-2 (Himawari-7), is provided via MTSAT-1R (Himawari-6) direct dissemination through the L-band frequency High Rate Information Transmission (HRIT) and Low Rate Information Transmission (LRIT) services. Most National Meteorological and Hydrological Services (NMHSs) in the East Asia and Western Pacific regions receive this imagery using L-band antennas and receivers, and process it with dedicated systems. JMA also provides the same HRIT service imagery via the online JMA Data Dissemination System (JDDS).
Himawari-8/9 will not carry equipment for direct dissemination. Instead, all imagery derived from the satellites will be distributed to NMHSs via an Internet cloud service. JMA also plans to start the HimawariCast service, by which primary sets of imagery will be disseminated to NMHSs via a communication satellite using Digital Video Broadcasting — Satellite — Second Generation (DVB-S2) technology.


  • Internet cloud service

Format Observation area Notes
Himawari
Standard
Data
Full disk
Target area
• Full disk: every 10 minutes
• Target area: every 2.5 minutes
• 16 bands
• Finest-spatial-resolution data
Portable
Network
Graphics
(PNG)
Full disk
Target area
• True-color images (composites of 3 visible bands)
• Full disk: every 10 minutes
• Target area: every 2.5 minutes
• Same spatial resolution as Himawari Standard Data
Network
Common
Data Form
(NetCDF)
Full disk
Target area
• Every 2.5 minutes
• 16 bands
• Same spatial resolution as Himawari Standard Data


  • HimawariCast service

Format Observation area Notes
Himawari-8/9
imagery
(full disk)
HRIT files
LRIT files
• Format compatible with the current MTSAT series HRIT
  and LRIT services
• Every 10 minutes
• HRIT: 5 bands (VIS: 1; IR: 4)
• LRIT: 3 bands (VIS: 1; IR: 2)
• Coarser spatial resolution than Himawari standard data
Numerical
weather
prediction products
(GPV)
SATAID format • JMA Global Model (GSM) products
• Every 6 hours
In-situ
observations
(surface
stations, ships,
radiosondes)
SATAID format • Observation data collected from the East Asia and
  Western Pacific regions
ASCAT
ocean surface wind
(EUMETSAT)
SATAID format • Originally provided by the EUMETSAT Ocean and Sea
  Ice Satellite Application Facility (OSI SAF) and
  converted into SATAID format by JMA


Referred by KARI(http://www.jma.go.jp) website