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IRS-1D
On 29th September, 1996, Indian Space Research Organization (ISRO) proved its launch vehicle capability by launching the Indian Remote Sensing Satellite, IRS-1D, using Polar Satellite Launch Vehicle, PSLV-C1, from Sriharikota. This added one more member to the existing IRS constellation. It carries payloads similar to its predecessor, IRS-1C. Like IRS-1C, IRS-1D has LISS III, PAN, WiFS sensors onboard.
Orbit |
Near Polar, Sun synchronous |
Altitude |
737 km (perigee)
821 km (apogee) |
Inclination |
98.53 deg |
Local Time |
10.30 A.M to 10.47 A.M |
Repetivity |
25 days |
Orbits/cycle |
358 |
Period |
100.56 minutes |
Sensors |
PAN, LISS-III, WIFS |
PAN Sensor Characteristics
Resolution |
5.2 to 5.8 m |
Swath |
63 to 70 km |
Revisit |
5 days by tilting the camera |
Spectral Bands |
0.50 – 0.75 Microns |
Quantization |
6 bits |
Steerability |
+/- 26 degrees |
LISS-III Sensor Characteristics
Resolution |
21.2 to 23.5 m ( Visible and near IR region)
63.6 to 70.5 m ( Shortwave IR region ) |
Swath |
127 to141 Km ( Visible and near IR region )
133 to148 Km ( Shortwave IR region ) |
Repetivity |
25 days |
Spectral Bands |
0.52 - 0.59 microns (B2)
0.62 - 0.68 microns (B3)
0.77 - 0.86 microns (B4)
1.55 - 1.70 microns (B5) |
Quantization |
7 bits |
WiFS Sensor Characteristics
Resolution |
169 to 188 meter |
Swath |
728 to 812 Km |
Revisit |
3 days ( by combining paths ) |
Spectral Bands |
0.62 - 0.68 microns (Visible)
0.77 - 0.86 microns (near infra-red) |
Quantization |
7 bits |
Sensor |
Resolution(m)
& No. of Bands |
Coverage
Km x Km |
Data Products |
| Type |
Media |
Scale of Photo products |
PAN
|
5.8
( one)
|
63x70.8
70x69.1
23x23
23x23
14x14
9x9 |
Full Scenes with SAT
Sub-scenes with SAT
Sub-scenes stereo pairs
Geocoded (7 1/2'x7 1/2')
Geocoded (5' x 5')
|
Digital, B&W
Digital, B&W
Digital
Digital, B&W
Digital, B&W |
1:125, 000
1:50, 000
-
1:25, 000
1:12, 500 |
LISS-III
|
23.5
2(V),1 (NIR))
70 1(SWIR) |
127x145.5
141x142.1
70x70
28x28 |
Full Scenes with SAT
Quadrants
Geocoded (15'x15')
(map & floating) |
Digital, FCC
Digital, FCC
Digital, FCC |
1:250, 000
1:125, 000
1:50, 000 |
WIFS
|
188
two (V, NIR)
|
720x778
812x760
|
Full Scenes with SAT
|
Digital, FCC (Bands 3,3,4)
|
1.2 Million
|
|
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