PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-09:58:10
G01     58.8           29.5                4.6 +/-    1.26       8.2 +/-    1.26  0.060 / 0.120
G07     141.7          21.0                6.5 +/-    2.81      14.1 +/-    2.81  0.070 / 0.130
G11     48.6           25.8                4.2 +/-    1.26       8.0 +/-    1.26  0.030 / 0.030
G13     261.2          36.3                5.6 +/-    2.59       8.6 +/-    2.59  0.020 / 0.030
G15     294.0          16.2                4.5 +/-    1.33      10.9 +/-    1.33  0.080 / 0.100
G17     252.6          74.9                6.4 +/-    0.39       6.6 +/-    0.39  0.090 / 0.120
G18     41.7           12.7                2.1 +/-    2.95       5.6 +/-    2.95  0.070 / 0.170
G19     231.8          52.7                5.8 +/-    2.59       7.1 +/-    2.59  0.310 / 0.310
G28     22.2           59.9                5.8 +/-    0.91       6.6 +/-    0.91  0.040 / 0.040
G30     144.2          54.5                7.6 +/-    0.39       9.1 +/-    0.39  0.040 / 0.040