Page 72 - Digital Analysis of Remotely Sensed Imagery

44 Cha pte r T w o

Characteristics VNIR SWIR TIR
Spectral band 1: 0.52–0.60 4: 1.600–1.700 10: 8.125–8.475
and range (μm)
2: 0.63–0.69 5: 2.145–2.185 11: 8.475–8.825
3: 0.76–0.86 ∗ 6: 2.185–2.225 12: 8.925–9.275

7: 2.235–2.285 13: 10.25–10.95
8: 2.295–2.365 14: 10.95–11.65
9: 2.360–2.430
Ground 15 30 90
resolution at
nadir (m)
Swath width (km) 60 60 60
Data rate 62 23 4.2
(Mbps)
Cross-track ±24 ±8.55 ±8.55
pointing (°)
Cross-track ±318 ±116 ±116
pointing (km)
Quantization 8 8 12
(bits)

∗ Two identical bands are acquired, one nadir looking, and one backward looking.

TABLE 2.15 Characteristics of ASTER Spectral Bands

FIGURE 2.5 Sensors aboard the Terra satellite. (Source: Goddard Space
Flight Center.)