THE ARGOS SYSTEM
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Yann Bernard
CLS Group
http://www.argos-system.org
The Argos system
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Argos is a global satellite-based location and data collection system
dedicated to studying and protecting our planet's environment.
It allows any mobile object equipped with a compatible transmitter:
To be located across the world,
To send data from measurement sensors connected to this transmitter.
The Argos system
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Argos system status
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Argos uplink frequency band
Argos satellites launch years
High data rate platforms
Argos- 1
Dedicated bandwith for low
ouput power applications
Argos-2
Argos-3
Argos-4
401.300
401.580
401.650
1978…
1998
2000
2002
2005
2006
2009
2012
2013
2016
2018
2020
…
401.690 MHz
Initial Argos frequency band and uplink modulation are preserved
 Sustainability of the Argos satellite system is compatible with
long lifetime program (like Argo with floats lifetime ~10 years)
Space Agencies collaboration
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…
6 Argos operational satellites: 4 x Argos-2 & 2 x Argos-3
Argos-4 starts in 2016 with METOP-C and a NOAA satellite in 2017
OceanSat-3 from ISRO will bring Argos-4 also in 2018
The Argos system
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Argos Global antennas
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 Collect all the messages recorded by the satellites
during a full orbit
 3 global antennas in the Northern Hemisphere
 1 global antenna in
Antarctica collects ½ orbit
only for METOP satellites
operational since June 2011
Argos antennas network
 Collect data in real time for Argos platforms within satellite and
antennas visibility at the same time
 A network of 65 regional real-time stations
2014-15 new antennae
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2014 Argos data delivery time
in minutes
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2015 Argos data delivery time
in minutes
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Argos-3 features
Thanks to a downlink and a high data rate
channel, Argos-3 platforms can:
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• Send more data (until10 times more than with Argos-2)
• Manage remotely Argos-3 platforms by commands
• Save power in transmitting only over satellite passes
Comparison of volume of data collected in
one satellite pass
12
kb of data
10
8
6
4
2
0
Argos-2
Argos-3 LR
Argos-3 HR
Argos-3 platforms
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~ 1500 active platforms daily: GDP, CO2 buoys, TRITON
buoys, Argo floats, AWS,…
ArgosWeb
A single secured web site to:
• View all positions on map (20 days)
•
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View Argos messages (20 days)
• Download data
• Export on Google Earth with
error ellipses
• Manage users settings
• Put on copy other users
• Create guest accounts
https://argos-system.cls.fr
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Argos Web Mapping
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Trajectory data button
Google Earth export button
Observations
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Observations: display and export decoded data
(physical values with observation time/position)
Web services
M to M distribution tool
Communication based on SOAP (Simple
Object Access Protocol) over HTTP.
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 20 days of data
Data formats: XML,
CSV and KML
All data (sensors,
raw data, diagnostics,
…) are displayed
XML format flexible
and complete
Service fully
operational 24/7
Automatic Data Distribution
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 Argos messages and observation data can be automatically
sent to the user by : Emails, FTP, SMS
 Different sending strategies available :
• Data sent at each new dataset
• Data sent on a periodic mode (i.e. each hours)
 Different formats available: CSV, TXT, …
GTS processing service
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• CLS is providing GTS processing
and distribution for all met. & ocean
platforms, including main international
programs
• Variables such as Air Pressure, Air Temperature, SST, Wind are
particularly useful.
• This International
co-operation
is
helping
weather
centers to produce
better forecasts and
contributing in the
long term to global
climate studies.
All GTS ocean platforms
GTS processing service
 Decode of messages from all ocean & met
platforms using Argos
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 Compute of physical values according to
manufacturers formats
 Control the quality of the data according to WMO
regulations
 Code data in WMO standards (Alphanumeric
and BUFR bulletins
 Send data to National Weather Services for GTS
distribution
 Service provided 24/7
Android application
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 An Android application available
to consult Argos tracks from a
smartphone/pad.
Argos Forum
Communication tool for Argos users
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Published 2 times a year / Editing YOUR articles
Dedicated to oceanographers and biologists working with
ARGOS
Scientific vulgarization, outreach towards stakeholders
Many years archive online http://www.argos-system.org
Sent to ARGOS contact database: over 4000 scientists
around the world
How to participate?
Just contact us and we will organize everything
Argos Community
YouTube ARGOS channel:
See new videos on Argos: PTT, system, tagging methods
Publish your own movies…
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Argos Community
ARGOS Facebook account:
Be part of the community in becoming of friend of Argos
Find latest news
 Users testimonies
 Share experiences
 Find partners
…
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New Argos products
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 3.5 g Argos GPS PinPoint
from Biotrack (Lotek group) for
Bird tracking
 Microvawe Telemetry is
working on a new 2 g Argos
transmitter…
25 x 13 x 10mm
New Argos products
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 E-TAG from Microwave Telemetry:
the smaller and lighter popup tag
SEATAG-TT and SEATAG-SAM
from DesertStar, popup and turtle
tags with solar panels
increasing the platform lifetime
SHARC project
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 SHARC = Satellite High-performance ARGOS-3/-4
Receive/transmit Communication
 To implement ARGOS-3 and ARGOS-4 capabilities
on a single license-free chipset (7mmx7mm)
 This miniaturized ARGOS transceiver will work at
very low power consumption allowing deployments
of ARGOS-3/4 technology in most applications.
 Will be provided to integrators in summer 2015 for
testing
http://www.argos-system.org
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