PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-20:28:00
G01     40.2           15.2                9.0 +/-    2.63      22.3 +/-    2.63  0.040 / 0.070
G06     175.9          38.2               12.6 +/-    0.96      18.9 +/-    0.96  0.030 / 0.080
G13     235.9          21.9               12.5 +/-    1.13      26.3 +/-    1.13  0.120 / 0.320
G15     269.2          11.9               12.1 +/-    3.21      32.2 +/-    3.21  0.130 / 0.310
G17     3.9            69.8               10.9 +/-    0.62      11.5 +/-    0.62  0.110 / 0.300
G19     280.2          70.0               10.6 +/-    0.54      11.2 +/-    0.54  0.100 / 0.300
G24     315.8          20.6               10.0 +/-    2.13      21.8 +/-    2.13  0.070 / 0.090
G28     67.9           49.9                9.5 +/-    1.09      11.9 +/-    1.09  0.050 / 0.080
G30     154.2          24.6               13.1 +/-    0.55      25.9 +/-    0.55  0.080 / 0.230