PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-00:12:40
G10     294.9          51.0                9.2 +/-    1.81      11.4 +/-    1.81  0.060 / 0.080
G15     47.0           33.0                6.2 +/-    1.27      10.2 +/-    1.27  0.050 / 0.090
G20     293.5          47.0               18.5 +/-    0.38      24.2 +/-    0.38  0.030 / 0.030
G21     87.1           76.0                8.9 +/-    0.39       9.1 +/-    0.39  0.040 / 0.040
G24     97.7           25.7               10.0 +/-    0.99      19.2 +/-    0.99  0.100 / 0.150
G27     302.6          33.3                7.3 +/-    2.69      12.0 +/-    2.69  0.070 / 0.140
G32     209.5          32.0               11.3 +/-    1.28      18.9 +/-    1.28  0.090 / 0.070