Table 1 Summary of typical auroral imagers

From: Wide-field auroral imager onboard the Fengyun satellite

Imager Angular/Spatial Resolutiona (deg/km) Spacecraft altitude Wavelength (nm) Image frame rate Reference
WAI/FY-3D 0.8/10 830 km 140–180 2, 100 min This paper
WIC/IMAGE 0.18/120 0.3–7 RE 140–190 10 s 6, 7
SI/IMAGE 0.13/100
0.26/200
0.3–7 RE 135.6
121.6
5 s 8
UVI/Polar 0.03/30 1–8 RE 4 filters: 130–190 37 s 9
GUVI/TIMED 0.8/50 630 km Spectrometer: 120–180 100 min 10
SSUSI/DMSP 0.8/50 840 km Spectrometer: 120–180 100 min 11
SAI/DE-1 0.32/100 1–4 REb Several filters: 121.6–630.0 12 min 5
  1. aThe spatial resolution refers to the resolution of the projected disk images
  2. b1 RE = 6375.0 km, which is the Earth’s radius