Table 4 Principal specifications of TANSO-CAI-2 compared with TANSO-CAI

Forward Viewing

Backward Viewing

Nadir Viewing

(+ 20°)

(– 20°)

Spectral range (nm)

b 1: 333–353

b 6: 370–390

Band 1: 370–390

b 2: 433–453

b 7: 540–560

Band 2: 664–684

b 3: 664–684

b 8: 664–684

Band 3: 860–880

b 4: 859–879

b 9: 859–879

Band 4: 1555–1645

b 5: 1585–1675

b 10:1555–1645

Spatial resolution

Except Bands 5, 10 Bands 5, 10

Except Bands 5, 10 Bands 5, 10

Bands 1–3 Band 4

(@nadir)

460 m (700 mrad) 920 m (1400 mrad)

460 m (700 mrad) 920 m (1400 mrad)

500 m (750 mrad) 1500 m (2250 mrad)

Swath (FOV)

920 km

920 km

Band 1–3 Band 4

1,002 km (72°) 786 km (60°)

SNR

b 1: > 200 (45/0.158)

b 6: > 200 (48/0.152)

b1: > 200 (47/0.149)

(@spectral-radiance/albedo)

b 2: > 200(79/0.144)

b 7: > 200 (65/0.125)

b2: > 200 (45/0.104)

(W/m²/sr/μm)

b 3: > 200 (46/0.106)

b 8: > 200 (46/0.106)

b3: > 200 (29/0.108)

b 4: > 200 (30/0.112)

b 9: > 200 (30/0.112)

b4: > 200 (7/0.101)

b 5: > 200 (7/0.101)

b 10: > 200 (7/0.101)