PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-17:27:50
G03     186.5          15.1                8.8 +/-    2.33      21.8 +/-    2.33  0.120 / 0.150
G07     298.4          44.4                8.3 +/-    3.51      11.3 +/-    3.51  0.170 / 0.170
G08     137.0          31.7               11.0 +/-    0.66      18.6 +/-    0.66  0.060 / 0.080
G09     319.3          66.0                8.6 +/-    0.57       9.3 +/-    0.57  0.050 / 0.070
G16     42.8           39.5                6.2 +/-    0.84       9.0 +/-    0.84  0.190 / 0.300
G23     126.5          76.6                8.0 +/-    0.45       8.2 +/-    0.45  0.230 / 0.320
G26     44.4           11.2                6.9 +/-    4.04      18.8 +/-    4.04  0.040 / 0.030
G27     97.2           35.3               10.9 +/-    1.13      17.2 +/-    1.13  0.030 / 0.030
G30     277.2          15.8                7.0 +/-    1.42      17.1 +/-    1.42  0.340 / 0.380