PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-20:13:00
G01     37.8           10.2                9.8 +/-    6.32      27.3 +/-    6.32  0.120 / 0.150
G02     199.7          15.8               16.8 +/-    3.62      40.8 +/-    3.62  0.090 / 0.150
G06     171.6          49.1               14.1 +/-    0.70      17.9 +/-    0.70  0.140 / 0.230
G13     231.2          16.5               15.6 +/-    2.74      37.3 +/-    2.74  0.180 / 0.220
G17     10.5           65.7               11.8 +/-    0.44      12.9 +/-    0.44  0.050 / 0.050
G19     299.0          70.4               11.4 +/-    0.70      12.1 +/-    0.70  0.060 / 0.050
G24     312.9          26.1               10.4 +/-    0.85      19.7 +/-    0.85  0.090 / 0.380
G28     82.1           42.5               12.3 +/-    1.01      17.2 +/-    1.01  0.070 / 0.350
G30     156.3          19.2               16.1 +/-    2.16      36.1 +/-    2.16  0.040 / 0.040