PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-23:42:50
G01     60.5           30.7               15.1 +/-    0.67      26.0 +/-    0.67  0.050 / 0.090
G07     142.2          23.0               18.7 +/-    3.23      38.3 +/-    3.23  0.050 / 0.070
G11     49.5           26.1               12.0 +/-    1.60      22.8 +/-    1.60  0.040 / 0.050
G13     263.6          35.2               19.0 +/-    2.21      30.0 +/-    2.21  0.040 / 0.050
G15     293.7          16.6               14.2 +/-    1.06      33.9 +/-    1.06  0.020 / 0.030
G17     252.1          73.0               17.4 +/-    0.33      18.1 +/-    0.33  0.020 / 0.030
G18     327.8          -20.9              26.4 +/-    2.34      56.8 +/-    2.34  0.070 / 0.080
G19     232.4          50.2               19.1 +/-    2.16      24.0 +/-    2.16  0.120 / 0.070
G28     36.1           56.5               17.5 +/-    0.70      20.5 +/-    0.70  0.090 / 0.130
G30     142.8          49.7               18.8 +/-    0.49      23.8 +/-    0.49  0.090 / 0.160