Spectroscopy and Spectral Analysis, Volume. 42, Issue 3, 828(2022)

Simulation of Space Borne Ionospheric Airglow Imaging

Figures & Tables(11)
Imaging diagram of space borne airglow imager
Typical 630 nm airglow volume emission rate profile
Airglow intensity distribution of spring equinox and summer solstice with high and low solar activity (in Rayleigh)
Airglow intensity distribution of autumnal equinox and winter solstice with high and low solar activity (in Rayleigh)
Focal plane imaging diagram
Relationship between airglow intensity and SNR
The simulation of imaging signal (a) and SNR (b) for high solar activity
The simulation imaging signal (a) and SNR (b) for low solar activity
  • Table 1. Parameters value

    View table
    View in Article

    Table 1. Parameters value

    参数数值
    跃迁系数A1D7.1×10-3 s-1
    跃迁系数A2D2.2×10-3 s-1
    量子产率μD1.3
    收率β[10]76%±6%
    反应系数k12×10-11exp(107.8/Tn) cm3·s-1
    反应系数k22.9×10-11exp(67.5/Tn) cm3·s-1
    反应系数k3(3.730+0.119 65Tn0.5-6.589 8×
    10-4Tn)×10-12 cm3·s-1
    速率系数γD[11]6×10-12 cm3·s-1
    速率系数γO[11]5×10-13 cm3·s-1
    速率系数αO2+1.95×10-7(300/Te)0.7 cm3·s-1
    速率系数αNO+3.5×10-7(300/Te)0.69 cm3·s-1
  • Table 2. CCD Specifications

    View table
    View in Article

    Table 2. CCD Specifications

    参数数值
    像元数n1 024×256
    像元尺寸α26 μm×26 μm
    成像区域尺寸S126.6 mm×6.7 mm
    量子效率Q(@630 nm)0.85
    读出噪声Nrrms 6 e-/pixel
    暗电流(@213 K)0.07 e-/pixel·s-1
    灵敏度1.5 μV/e-
    峰值信号5×105 e-·pixel-1
    动态范围83 000∶1
  • Table 3. Parameters of the Imager

    View table
    View in Article

    Table 3. Parameters of the Imager

    轨道参数数值光学参数数值
    卫星轨道高度700 km镜头视场角θ34°
    星下观测高度250 km镜头焦距24 mm
    星下点速度v7 031 m·s-1光学系统透过率τ0.52
    轨道倾角70°镜头F2.2
    入瞳直径D1.1 cm
Tools

Get Citation

Copy Citation Text

. Simulation of Space Borne Ionospheric Airglow Imaging[J]. Spectroscopy and Spectral Analysis, 2022, 42(3): 828

Download Citation

EndNote(RIS)BibTexPlain Text
Save article for my favorites
Paper Information

Category: Orginal Article

Received: Feb. 1, 2021

Accepted: Apr. 23, 2021

Published Online: Apr. 19, 2022

The Author Email:

DOI:10.3964/j.issn.1000-0593(2022)03-0828-07

Topics