PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-01:12:30
G02     199.8          23.3               11.8 +/-    2.89      24.0 +/-    2.89  0.040 / 0.030
G06     171.5          54.3               10.2 +/-    0.51      12.2 +/-    0.51  0.030 / 0.030
G13     227.1          12.5                9.8 +/-    3.30      25.8 +/-    3.30  0.080 / 0.100
G17     18.1           61.5                7.0 +/-    0.69       7.9 +/-    0.69  0.060 / 0.090
G19     325.3          70.8                6.8 +/-    0.57       7.2 +/-    0.57  0.040 / 0.040
G24     309.7          29.9                7.1 +/-    0.86      12.5 +/-    0.86  0.050 / 0.040
G28     89.5           38.7                8.2 +/-    1.30      12.2 +/-    1.30  0.460 / 0.200
G30     156.4          11.4               10.9 +/-    3.01      29.6 +/-    3.01  0.160 / 0.310