PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-08:58:00
G01     58.4           29.3                3.4 +/-    1.26       6.1 +/-    1.26  0.040 / 0.040
G06     178.8          15.4                2.5 +/-    1.82       6.2 +/-    1.82  0.030 / 0.040
G07     141.8          21.2                5.9 +/-    1.62      12.5 +/-    1.62  0.170 / 0.390
G11     48.7           26.0                4.9 +/-    2.17       9.4 +/-    2.17  0.130 / 0.470
G13     260.9          36.2                6.4 +/-    2.53      10.0 +/-    2.53  0.090 / 0.090
G15     293.2          16.5                5.0 +/-    3.40      11.9 +/-    3.40  0.100 / 0.100
G17     254.5          75.6                7.2 +/-    0.45       7.4 +/-    0.45  0.040 / 0.050
G19     231.9          53.0                6.6 +/-    2.36       8.0 +/-    2.36  0.040 / 0.050
G28     22.0           60.0                5.3 +/-    1.23       6.0 +/-    1.23  0.070 / 0.120
G30     144.5          54.9                8.2 +/-    0.71       9.8 +/-    0.71  0.060 / 0.150