PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-15:27:40
G02     201.7          21.1                9.3 +/-    2.44      19.9 +/-    2.44  0.120 / 0.230
G06     166.1          58.7                8.6 +/-    0.67       9.9 +/-    0.67  0.110 / 0.230
G12     302.5          11.1                0.3 +/-   21.74       0.7 +/-   21.74  0.100 / 0.110
G13     224.9          11.2                8.1 +/-    2.69      22.0 +/-    2.69  0.100 / 0.090
G17     26.5           56.7                7.5 +/-    1.01       8.8 +/-    1.01  0.130 / 0.270
G19     320.3          70.1                6.7 +/-    0.65       7.1 +/-    0.65  0.180 / 0.310
G24     307.0          32.9                6.0 +/-    1.86       9.9 +/-    1.86  0.200 / 0.510
G28     90.9           38.3                6.8 +/-    1.51      10.2 +/-    1.51  0.210 / 0.530
G30     158.0          13.3                8.6 +/-    1.91      22.4 +/-    1.91  0.030 / 0.040