PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-17:42:50
G01     113.5          21.9               14.7 +/-    0.84      30.9 +/-    0.84  0.070 / 0.100
G07     94.6           63.3               13.4 +/-    0.66      14.8 +/-    0.66  0.060 / 0.100
G08     43.4           27.9               10.6 +/-    0.96      19.5 +/-    0.96  0.040 / 0.040
G09     176.0          19.7               14.1 +/-    1.92      31.2 +/-    1.92  0.040 / 0.040
G11     99.3           42.0               14.8 +/-    0.69      20.8 +/-    0.69  0.030 / 0.040
G13     314.3          24.1               12.5 +/-    1.12      24.9 +/-    1.12  0.030 / 0.030
G17     204.3          28.5               13.7 +/-    1.64      24.8 +/-    1.64  0.050 / 0.100
G18     87.9           23.0               11.6 +/-    0.82      23.8 +/-    0.82  0.050 / 0.080
G28     305.0          59.5               12.5 +/-    0.78      14.3 +/-    0.78  0.110 / 0.280
G30     2.4            74.1               14.1 +/-    0.49      14.6 +/-    0.49  0.100 / 0.200