TIMED SEE Level 3A Solar Irradiance Data

SEE Level 3A data files contain each measurements averaged solar irradiance spectrum in 1 nm intervals extracted from the EGS Level 2A and XPS Level 2A data products. Shortward of 27 nm, a solar model is scaled to match the XPS broadband data. SEE Level 3A data files also contain 38 emission lines extracted from EGS Level 2A spectra, and the XPS Level 2A diode irradiances. For normal operations, SEE observes the Sun for about 3 minutes every orbit (97 minutes), which usually gives 14-15 measurements per day. The SEE Level 3A data are time averaged over each measurement, after applying corrections for atmospheric absorption, degradation, flare removal, and to 1-AU.

SEE Level 3A数据文件包含从EGS Level 2A与XPS Level 2A数据产品中提取的、以1纳米为间隔的各测量项对应的平均太阳辐照度光谱（solar irradiance spectrum）。在27纳米的短波波段，采用经缩放以匹配XPS宽带数据的太阳模型填补该波段的光谱数据。SEE Level 3A数据文件还包含从EGS Level 2A光谱中提取的38条发射谱线（emission lines），以及XPS Level 2A的二极管辐照度（diode irradiances）数据。