1.THEOS (Thailand Earth Observation System):

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6 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

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1.
THEOS (Thailand Earth Observation System):

Country: Thailand

Date of Launch: 1
st

October 2008

Objective: T
he generation of geo
-
referenced image products and image processing
capabilities for applications in the fields of cartography, land use,
agricultural monitoring,
forestry management, coastal zone monitoring and flood risk management.

Orbit Height
:
822 km

Orbit Type
:
Sun
-
synchronous near
-
circular

Repeat Cycle
:
26 days

L
ocal equator crossing time at 10:00 hours on a descending node

Sensors:



P
anchromatic (PAN) Camera



Multispectral (MS) Camera

Characteristic

Panchromatic (PAN
) Camera

Multispectral (MS) Camera

Spectral range

0.45 to 0.90 µm

B0 (blue): 0.45
-
0.52 µm

B1 (green): 0.53
-
060 µm

B2 (red): 0.62
-
0.69 µm

B3 (NIR): 0.77
-
0.90 µm

Spatial res
olution

2 m GSD

15

m GSD

Swath width

22 km (nadir)

90 km (nadir)



2.
CBERS (China/Brazil
-

Earth Resources Satellite):

Country: China

Date of Launch: 21
st

October,2003

Objective: The data collected by the satellites are used i
n several applications, such as
weather forecast, ocean circulation studies, tides, chemistry of the atmosphere, agriculture
planning etc.


Orbit Height:
778

km

Orbit Type:
Sun
-
synchronous

Repeat Cycle: 26 days

The local solar time at the equator crossing

is always 10:30 a.m.

Sensors:



WFI
-

Wide Field Imager



CCD
-

High Resolution CCD Camera



IRMSS
-

Infrared Multispectral Scanner




HRC
-

High Resolution Camera

Characteristic

WFI
-

Wide
Field Imager

CCD
-

High
Resolution CCD
Camera

IRMSS
-

Infrared
Multispectral
Scanner



HRC
-

High
Resolution
Camera

Spectral
range

0.63


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3.
UK
-
DMC (Disaster Monitoring
Constellation)
-
SAT 1:

Country: British(for DMC)

Date of Launch:
29 July 2009

Objective:
Disaster Manag
ement.

Orbit Height:
630
km

Orbit Type:
Sun
-
synchronous

Repeat Cycle:
5

days

A
scending north over the Equator at 10:15 am local time

Sensors:



Extended
Swath Imaging System
-

ESIS

C
hara
cteristic

Extended Swath Imaging System
-

ESIS

Spectral range

VIS

(
0.40µm

-
0.75µm)

NIR

(
0.75µm

-
1.3µm

Spatial resolution

22m

Swath width

660

km (nadir)


4.
PROBA 1
(Project
for On
-
Board Autonomy
-
1
):

Country:
European union

Date of Launch:
22 October, 2001

Objective:
N
avigation, payload and resource management
.

Orbit Height:
615

km

Orbit Type:

Sun
-
synchronous elliptical polar orbit

Repeat Cycle: 7

days

Over the Equator at 10:30

am local time

Sensors:



Compact High
Resolution Imaging Spectrometer
-

CHRIS



High Resolution Camera
-

HRC



Wide Angle Camera
-

WAC

Characteristic


CHRIS

High Resolution
Camera
-

HRC


Wide Angle
Camera
-

WAC


Spectral range

VIS

(
0.40µm
-
0.75µm)

NIR

(~0.75µm
-
1.3µm)

VIS

(
0.40µm

-
0.75µm)

VIS

(0.40µm

-

0.75µm)

Spatial resolution

17 m

8m

20
-
200m

Swath width

13 km

4km



5.
EROS (Earth Remote Observation System):

Country: Israel

Date of Launch: 25/04/2006

Objective: The overall objective is to launch and operate a constellation of
high
-
resolution
commercial satellites, primarily for intelligence and national security applications and to
serve a global customer base.

Orbit Height:
50
0 km

Orbit Type: Sun
-
synchronous circular orbit

Repeat Cycle: 5 days

Crosses over the Equator at 10:
4
5 am local time

Sensors:



Panchromatic Imaging Camera
-
2 (PIC
-
2)

Characteristic

Panchromatic Imaging Camera
-
2 (PIC
-
2)

Spectral range

VIS (0.40µm
-

0.75µm)

NIR (0.75µm
-

1.3µm)

Spatial resolution

0.7
m

Swath width

14

km (nadir)