42nd Argos Operations Committee Meeting Assmannshausen, GERMANY June 3 - 5, 2008 ARGOS OPERATIONS

HIGHLIGHTS 2 ARGOS satellites decommissioned (NOAA 12 and 14) METOP A Data delivered to all ARGOS users on August 1st, 2007 METOP HRPT OFF since July 5th, 2007 ARGOS2001 Phase3 in operation since September 9th, 2007 9 new antennae added to ARGOS Realtime network 2 Regional Processing Centers OFF Power outage test done successfully in October 2007

GROUND STATIONS Global stations (3) Regional stations (56) Fairbanks & Wallops Island : Nominal – average of 14 datasets per day from N15-18 Svalbard: Average of 107 15 minute data files per day from METOP-A Regional stations (56) 6 (7) USAF antenna connected in March 2007 Libreville (Gabon) connected in April 2007 No real-Time Reception from METOP A

GROUND STATION COVERAGE REGIONAL

ARGOS SPACE SEGMENT:2007 NOAA 12 NOAA 14 NOAA 15 NOAA 16 NOAA 17 (1991) NOAA 14 (1994-2007) NOAA 15 NOAA 16 NOAA 17 NOAA 18 (2005) ARGOS 1 ARGOS 2 METOP A (May 2007) ARGOS 3 (1998) (2000) (2002)

SATELLITE ORBITAL PLANES

PROCESSING CENTERS Global Processing Centers Nominal 800 data sets per day (1000 in ’07) ARGOS2001 Phase3A into Operation in September Regional Processing Center Lima:Nominal operation Djarkarta and Tokyo were de-activated in 2007 Orbitography beacons: Review contact point.

STIP DATA ARRIVAL TIMES

2006 STATISTICS Daily Active PTT: > 9500 (9,000) Monthly Active PTT: > 17800 (17,000) Messages : > 1 100 000 per day(1,000,000) Locations : > 80 000 per day (70,000) Services availability : > 99,77% (99.6%)

STATISTICS GRAPH SYSTEM AVAILABILITY

On average, ARGOSWEB receives 100 connexions per day

PERSPECTIVES Argos-3 (Downlink) into Operation ARGOS2001 Phase3B in operation New Antennae into the EARS network Monthly Argos operation report to be available* *Throughput times calculation have been redefined and will be implemented in 2008. Statistics on throughput times will be again available in Mid-2008.