PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-19:28:10
G02     62.8           31.3                8.7 +/-    0.47      14.8 +/-    0.47  0.030 / 0.040
G05     51.9           56.7                9.7 +/-    0.50      11.4 +/-    0.50  0.030 / 0.040
G12     180.2          22.8               11.8 +/-    2.43      24.2 +/-    2.43  0.140 / 0.320
G13     123.0          19.1               14.4 +/-    1.39      32.3 +/-    1.39  0.100 / 0.330
G15     163.7          15.1               13.4 +/-    1.36      33.4 +/-    1.36  0.080 / 0.220
G21     275.6          19.8                8.4 +/-    1.66      18.6 +/-    1.66  0.090 / 0.160
G25     227.2          47.2                9.7 +/-    0.76      12.7 +/-    0.76  0.050 / 0.080
G29     331.0          58.8                8.5 +/-    1.01       9.8 +/-    1.01  0.050 / 0.070