PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-13:27:50
G03     197.7          38.0                8.2 +/-    1.25      12.3 +/-    1.25  0.220 / 0.250
G07     273.1          26.7                8.6 +/-    1.38      16.2 +/-    1.38  0.180 / 0.330
G08     154.6          12.7                7.5 +/-    3.89      19.8 +/-    3.89  0.070 / 0.150
G09     318.5          45.4                8.6 +/-    0.79      11.5 +/-    0.79  0.070 / 0.160
G16     53.4           53.5                8.6 +/-    0.54      10.4 +/-    0.54  0.130 / 0.210
G22     180.4          20.0                9.0 +/-    1.80      19.8 +/-    1.80  0.110 / 0.170
G23     16.1           79.2                8.1 +/-    0.94       8.2 +/-    0.94  0.030 / 0.040
G26     43.6           25.0                9.0 +/-    1.90      17.6 +/-    1.90  0.040 / 0.050
G27     118.3          23.8                9.5 +/-    0.68      19.2 +/-    0.68  0.020 / 0.030