PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-17:13:10
G01     85.8           32.1               10.0 +/-    0.86      16.7 +/-    0.86  0.040 / 0.050
G07     128.6          37.3               11.2 +/-    1.62      17.0 +/-    1.62  0.050 / 0.050
G11     64.1           38.5                8.0 +/-    1.09      12.0 +/-    1.09  0.040 / 0.080
G13     290.2          37.8                9.0 +/-    1.23      13.6 +/-    1.23  0.040 / 0.090
G15     312.6          11.7                8.8 +/-    3.79      23.8 +/-    3.79  0.060 / 0.140
G17     216.0          55.7               10.3 +/-    1.43      12.2 +/-    1.43  0.070 / 0.100
G18     59.2           22.5                8.1 +/-    0.87      16.7 +/-    0.87  0.070 / 0.130
G19     215.3          30.7               11.0 +/-    0.68      18.9 +/-    0.68  0.060 / 0.120
G28     343.7          61.6                9.0 +/-    0.67      10.1 +/-    0.67  0.130 / 0.230
G30     117.0          70.5               10.3 +/-    0.49      10.8 +/-    0.49  0.100 / 0.320