PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/02-00:57:50
G01     42.4           18.3                4.2 +/-    1.36       9.6 +/-    1.36  0.070 / 0.150
G06     179.5          31.2                7.3 +/-    2.00      12.5 +/-    2.00  0.070 / 0.160
G13     239.4          24.3                6.3 +/-    2.09      12.6 +/-    2.09  0.040 / 0.060
G15     273.2          13.2                6.6 +/-    0.83      17.2 +/-    0.83  0.040 / 0.070
G17     1.2            71.6                7.4 +/-    0.67       7.7 +/-    0.67  0.060 / 0.120
G19     267.4          67.1                6.2 +/-    0.84       6.7 +/-    0.84  0.060 / 0.110
G24     316.6          18.8                6.8 +/-    1.82      15.4 +/-    1.82  0.080 / 0.240
G28     63.8           50.8                6.5 +/-    0.41       8.1 +/-    0.41  0.070 / 0.270
G30     153.8          30.5                9.0 +/-    1.96      15.6 +/-    1.96  0.160 / 0.220