PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-17:57:50
G01     105.5          25.7               12.5 +/-    1.15      24.0 +/-    1.15  0.080 / 0.170
G07     111.7          51.2               12.2 +/-    1.35      15.2 +/-    1.35  0.080 / 0.160
G08     41.7           19.5                9.9 +/-    1.26      22.1 +/-    1.26  0.120 / 0.320
G09     175.4          14.2               13.1 +/-    2.19      33.3 +/-    2.19  0.130 / 0.310
G11     86.1           43.1               12.5 +/-    0.64      17.3 +/-    0.64  0.040 / 0.080
G13     308.4          30.1               12.0 +/-    2.93      21.0 +/-    2.93  0.030 / 0.060
G17     205.4          38.6               11.9 +/-    3.28      17.8 +/-    3.28  0.020 / 0.050
G18     77.4           23.9               12.0 +/-    1.33      24.0 +/-    1.33  0.020 / 0.060
G28     310.2          59.3               11.8 +/-    1.05      13.5 +/-    1.05  0.080 / 0.220
G30     41.0           78.7               11.6 +/-    0.42      11.8 +/-    0.42  0.090 / 0.210