PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-01:28:10
G02     209.6          53.4               11.9 +/-    0.68      14.4 +/-    0.68  0.090 / 0.120
G06     96.1           79.7                9.8 +/-    0.55      10.0 +/-    0.55  0.080 / 0.130
G12     315.4          28.0                8.1 +/-    1.37      14.8 +/-    1.37  0.070 / 0.070
G17     47.8           40.9                7.2 +/-    1.03      10.3 +/-    1.03  0.060 / 0.070
G19     28.4           55.0                7.8 +/-    0.91       9.3 +/-    0.91  0.030 / 0.070
G24     277.3          42.3                9.0 +/-    1.36      12.6 +/-    1.36  0.040 / 0.060
G28     117.0          19.3               11.2 +/-    1.29      25.0 +/-    1.29  0.090 / 0.180