PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-22:13:00
G02     199.6          18.9               19.5 +/-    0.83      44.0 +/-    0.83  0.060 / 0.170
G06     171.4          51.3               15.7 +/-    1.42      19.6 +/-    1.42  0.060 / 0.160
G13     229.5          14.9               18.8 +/-    1.93      46.8 +/-    1.93  0.040 / 0.080
G17     11.5           64.8               11.1 +/-    1.07      12.2 +/-    1.07  0.040 / 0.080
G19     309.6          71.0               13.4 +/-    1.05      14.1 +/-    1.05  0.090 / 0.260
G24     311.8          27.6               11.9 +/-    1.85      21.9 +/-    1.85  0.120 / 0.250
G28     85.1           41.0               12.2 +/-    1.03      17.4 +/-    1.03  0.050 / 0.050
G30     156.4          16.1               16.4 +/-    2.00      39.8 +/-    2.00  0.040 / 0.060