PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-15:28:00
G01     85.4           32.1               10.4 +/-    1.60      17.5 +/-    1.60  0.050 / 0.060
G07     128.7          38.0               11.7 +/-    0.83      17.6 +/-    0.83  0.050 / 0.070
G11     64.2           38.7               10.2 +/-    0.96      15.1 +/-    0.96  0.060 / 0.090
G13     289.8          37.9               12.8 +/-    2.93      19.3 +/-    2.93  0.050 / 0.080
G15     312.6          11.6                7.2 +/-    2.43      19.5 +/-    2.43  0.050 / 0.070
G17     216.2          54.7               12.6 +/-    0.98      15.0 +/-    0.98  0.040 / 0.080
G18     59.3           22.6                9.1 +/-    2.34      18.8 +/-    2.34  0.050 / 0.070
G19     215.3          31.2               11.1 +/-    2.01      19.0 +/-    2.01  0.040 / 0.060
G28     343.1          61.6                9.2 +/-    0.72      10.3 +/-    0.72  0.040 / 0.090
G30     116.8          71.1               11.4 +/-    0.86      12.0 +/-    0.86  0.040 / 0.110