Campbell SAT ARGOS Bedienungsanleitung PDF herunterladen (Seite 119)

ZENO

-3200 USER MANUAL

Coastal Environmental Systems (206) 682-6048

Page 111

Coastal Environmental Systems uses the Telonics ST-13 ARGOS Platform Transmitter Terminal (PTT)

for transmitting data to the ARGOS System. Regular transmissions can be formatted and transmitted, in

either clear-text (ASCII) or binary format.

Individual messages are limited to a maximum of 32 bytes.

6.8.1. Applying To Use ARGOS

Before you can use an ARGOS radio, you must first apply to use the ARGOS System to obtain critical ID

numbers. The application form is available on the Internet from http://www.argosinc.com

. The

completed application can be mailed either electronically or standard to the following addresses:

In North America:

Service Argos, Inc.

1801 McCormic Drive, Suite 10

Largo, MD 20774

Telephone: (301) 925-4411

Fax: (301) 925-8995

Rest of World:

CLS

8/10 rue Hermès

31526 Ramonville Cedex

France

Telephone: (33) (0) 5-61-39-47-00

Fax: (33) (0) 5-61-75-10-14

6.8.2. ARGOS Coverage

Each ARGOS satellite is in a circular, polar-orbiting, sun-synchronous orbit at an altitude of 850

kilometers.

Each ARGOS satellite crosses the equatorial plane at a fixed time each day. Hence, from the user’s

viewpoint, a given ARGOS platform comes within a satellite’s coverage at the same time each day.

Each polar-orbiting satellite covers a circular swath on the ground with a diameter of 5000 kilometers. It

takes the satellite 1 hour 40 minutes to go between North and South Poles; hence, the swath is displaced

by 25 degrees (2800 kilometers at the equator) each time the satellite passes a pole. Data collection

performance is a function of latitude.

6.8.3. Data Recovery

Data collected by the ARGOS System is processed at the two Global Processing Centers (GPC): 1) CNES

Toulouse Space Center, France and 2) Service Argos, Inc. in Largo, MD, USA

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Campbell SAT ARGOS Bedienungsanleitung Seite 119