| definition
| - The SPOT-1 (Satellite Pour l'Observation de la Terre) spacecraft was
launched on February 22, 1986. SPOT-1 is an earth observation satellite
with a greater ground resolution than that of the Landsat series satellites.
The main applications for the images returned by the first SPOT mission are
land-use studies, agriculture and forestry resources, mineral and oil
resources, and cartography. The three-axis stabilized satellite operates in
a circular sun-synchronous near-polar orbit for a design lifetime of 2 years.
Orbital Characteristics-
Orbital Period: 101.40 m
Inclination: 98.70 degrees Eccentricity: 0.00101
Periapsis: 815.00 km Apoapsis: 829.60 km
The spacecraft dimensions are 2 x 2 x 3.5 m and 15.60 m for the overall
length of the deployed solar panel. SPOT-1 consists of two parts:
(1) the bus, a standard multipurpose platform, and (2) the payload. The
bus provides housekeeping information and an onboard computer. The payload
is mounted on one of the side panels of the bus.
SPOT-1 consists of two identical high-resolution visible (HRV)
imaging instruments and a package comprising two magnetic-tape data recorders
and a telemetry transmitter. The HRV imaging instrument observes in three
spectral bands (in the visible and near infrared regions) with a ground
resolution of 20 m, and/or in a broader spectral band (panchromatic black and
white) with a ground resolution of 10 m. The pattern of successive ground
tracks is repeated exactly at 26-day intervals. The SPOT-1 instrument package
has the provision for off-nadir viewing which should be particularly useful for
monitoring localized phenomena evolving on a relatively short timescale.
SPOT-1, also, provides the capability for recording stereoscopic pairs of
images of a given area during successive satellite passes.
*NOTE-SPOT1 is used for technological experiments such as : refocusing,
batteries, etc,...
*NOTE-SPOT1 is no more used for commercial image acquisition.
Group: Platform_Details
Entry_ID: SPOT-1
Group: Platform_Identification
Platform_Category: Earth Observation Satellites
Platform_Series_or_Entity: SPOT
Short_Name: SPOT-1
Long_Name: Systeme Probatoire Pour l'Observation de la Terre-1
End_Group
Group: Synonymous_Platform_Names
Short_Name: SPOT-1
Short_Name: SPOT-A
Short_Name: 16613
End_Group
Group: Platform_Associated_Instruments
Short_Name: HRV
End_Group
Group: Orbit
Orbit_Inclination: 98.7°
Period: 101.4 minutes
Perigee: 815.0 km
Apogee: 829.6 km
Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous
End_Group
Creation_Date: 2007-11-13
Online_Resource http://nssdc.gsfc.nasa.gov/nmc/spacecraftOrbit.do?id=1986-019A Online_Resource http://www.cnes.fr/web/1417-spot-1-to-5.php Online_Resource http://www.spot.com/ Sample_Image http://msl.jpl.nasa.gov/QuickLooks/pictures/spot1.gif Group: Platform_Logistics
Launch_Date: 1986-02-22
Launch_Site: Kourou, French Guiana
Primary_Sponsor: France/CNES
End_Group
End_Group (en)
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