PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-19:28:10
G02     10.6           70.2                8.3 +/-    0.36       8.8 +/-    0.36  0.040 / 0.040
G05     161.9          44.7               11.5 +/-    0.76      15.6 +/-    0.76  0.040 / 0.030
G06     46.7           27.9                6.8 +/-    1.61      12.4 +/-    1.61  0.040 / 0.060
G12     248.4          79.8                8.4 +/-    1.11       8.5 +/-    1.11  0.050 / 0.070
G19     88.7           17.2                9.1 +/-    2.54      21.4 +/-    2.54  0.180 / 0.270
G20     197.1          12.8               12.2 +/-    4.16      32.1 +/-    4.16  0.140 / 0.240
G24     219.8          13.6               11.9 +/-    5.07      30.5 +/-    5.07  0.030 / 0.030
G25     310.3          46.2                9.0 +/-    0.78      11.9 +/-    0.78  0.030 / 0.020
G29     297.4          19.2               10.7 +/-    0.74      24.0 +/-    0.74  0.040 / 0.040