What is the resolution / GSD of the imagers on Sequoia?

Sequoia has 4 global shutter imagers for each of the four narrowband channels and one RGB rolling shutter imager for color photos. The four narrowband imagers are 1.2 MP each and the RGB imager is 16 MP. The GSD of resulting images from the narrowband imager is 11 cm/pixel (per band) at 400 ft AGL (120 m AGL).  

Refer to the following table to determine the flight height depending on the required resolution.

 

 Ground Resolution (cm/px) 

Height (m)

Monoband

RGB

30

2.82  0.8

40

3.76 1.1

50

4.71 1.4

60

5.65 1.6

70

6.59 1.9

80

7.53 2.2

90

8.47 2.4

100

9.42 2.7

110

10.30 2.9

120

11.30 3.3

130

12.24 3.5

140

13.19 3.7

150

14.13 4.1
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