PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-16:27:50
G01     52.1           26.6                6.8 +/-    0.82      12.9 +/-    0.82  0.080 / 0.290
G06     178.2          21.3               10.4 +/-    2.09      22.2 +/-    2.09  0.100 / 0.280
G07     144.3          11.4                8.4 +/-    3.29      22.8 +/-    3.29  0.040 / 0.060
G11     45.2           17.8                6.4 +/-    0.93      14.8 +/-    0.93  0.040 / 0.060
G13     252.7          32.8                9.0 +/-    1.70      15.0 +/-    1.70  0.070 / 0.220
G15     286.2          16.2                6.9 +/-    2.62      16.6 +/-    2.62  0.090 / 0.260
G17     285.4          78.3                9.9 +/-    0.60      10.1 +/-    0.60  0.060 / 0.120
G19     241.2          58.4                9.5 +/-    0.67      11.0 +/-    0.67  0.070 / 0.130
G28     38.8           57.3                8.9 +/-    0.52      10.3 +/-    0.52  0.030 / 0.030
G30     147.6          42.4               10.5 +/-    1.56      14.7 +/-    1.56  0.030 / 0.030