PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-20:12:50
G01     39.2           13.1               10.6 +/-    0.69      27.5 +/-    0.69  0.080 / 0.340
G02     199.5          12.4               19.3 +/-    3.85      51.0 +/-    3.85  0.080 / 0.340
G06     172.8          45.0               18.0 +/-    1.52      24.2 +/-    1.52  0.140 / 0.200
G13     234.1          19.0               18.4 +/-    2.21      41.4 +/-    2.21  0.120 / 0.170
G15     267.7          10.6               13.1 +/-    3.01      36.0 +/-    3.01  0.080 / 0.180
G17     3.9            68.6               16.2 +/-    0.63      17.3 +/-    0.63  0.090 / 0.180
G19     287.2          69.5               15.3 +/-    0.62      16.2 +/-    0.62  0.120 / 0.400
G24     314.7          23.2               11.8 +/-    1.74      24.0 +/-    1.74  0.090 / 0.470
G28     77.6           44.5               14.6 +/-    0.65      19.8 +/-    0.65  0.030 / 0.040
G30     155.6          22.7               18.2 +/-    1.24      37.6 +/-    1.24  0.040 / 0.030