The document discusses the HRV and HRVIR sensors onboard the SPOT satellite. The HRV sensor contains two identical high resolution visible imaging systems and auxiliary tape recorders. It has a panchromatic band with 10m resolution and multispectral bands of green, red, and near infrared with 20m resolution. The HRV sensor provides panchromatic imagery with 10m ground sample distance and multispectral imagery with 20m ground sample distance over a 60km swath.

1. HIGH RESOLUTION VISIBLE - HRV
SPOT SENSORS
1. HRV - HIGH RESOLUTION VISIBLE
2. HRVIR - VISIBLE AND INFRARED HIGH RESOLUTION
sENSOR ON BOARD spot - 1, 2, 3
Satellite

2. Two identical high Resolution Visible
imaging system.
Auxiliary magnetic tape recorders.
1.
2.
CHARACTERISTIC OF HRV SENSORS

3. 3. It is a plane mirror which can be
notated through an angle of 0.6.
4. Swath width 60 to 80 km under nader
viewing conditions.
5. Capable of collecting panchromatic
and multispecctral data.

4. Mode Band Wavelength Resolution
Panchromatic Black and
White
0.51 to 0.73 um 10 m
Use of Band
Band is primarilily for application calling for fine
geometrical detail.

5. Mode Band Wavelength Resolution
Multispectral
Green
Red
near infrared
0.50 - 0.59 um
0.61 - 0.68 um
0.79 - 0.89 um
20 m
20 m
20 m

6. Type
High-resolution optical
pushbroom imager
Ground Sample
Distance
Panchromatic: 10 m
Multispectral: 20 m
Swath Width 60 km
Instrument Field of
View
4.13°

7. Ground Sampling
Interval (Nadir Viewing)
Panchromatic: 10 m x 10 m
Bands
Pan
Green
Red
NIR (Near
Infrared )
0.51-0.73 μm
0.50-0.59 μm
0.61-0.68 μm
0.79-0.89 μm
Multispectral: 20 m x 20 m