PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-17:28:10
G02     220.3          62.0               12.1 +/-    0.66      13.5 +/-    0.66  0.090 / 0.480
G06     48.8           68.5               10.3 +/-    0.28      11.0 +/-    0.28  0.090 / 0.360
G12     321.1          44.0                9.7 +/-    1.66      13.2 +/-    1.66  0.050 / 0.060
G17     61.3           29.0                8.4 +/-    0.70      15.0 +/-    0.70  0.040 / 0.070
G19     40.6           49.0                9.9 +/-    0.44      12.6 +/-    0.44  0.040 / 0.050
G24     257.8          40.6               11.7 +/-    1.41      16.8 +/-    1.41  0.040 / 0.060
G28     125.2          10.7                8.8 +/-    2.88      24.3 +/-    2.88  0.060 / 0.100