PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-21:58:00
G01     108.4          24.4               10.0 +/-    1.48      19.9 +/-    1.48  0.070 / 0.210
G07     107.4          54.8               10.6 +/-    0.67      12.6 +/-    0.67  0.070 / 0.180
G08     41.7           20.2                7.2 +/-    0.31      15.8 +/-    0.31  0.050 / 0.070
G09     175.5          15.9               12.8 +/-    3.92      31.2 +/-    3.92  0.050 / 0.060
G11     89.1           42.7               11.2 +/-    0.33      15.6 +/-    0.33  0.030 / 0.030
G13     310.6          28.2                7.1 +/-    0.95      12.9 +/-    0.95  0.030 / 0.040
G17     204.0          37.8               11.4 +/-    2.55      17.2 +/-    2.55  0.080 / 0.200
G18     78.8           23.2                7.7 +/-    1.08      15.8 +/-    1.08  0.070 / 0.160
G28     307.3          59.1               10.2 +/-    0.58      11.7 +/-    0.58  0.040 / 0.050
G30     17.5           77.4               10.4 +/-    0.55      10.6 +/-    0.55  0.030 / 0.060