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               12.2 +/-    0.92      24.2 +/-    0.92  0.030 / 0.040
G07     107.4          54.8               12.1 +/-    0.45      14.5 +/-    0.45  0.030 / 0.040
G08     41.7           20.2                8.2 +/-    2.62      18.1 +/-    2.62  0.050 / 0.060
G09     175.5          15.9               12.6 +/-    1.75      30.7 +/-    1.75  0.040 / 0.060
G11     89.1           42.7               11.3 +/-    0.68      15.7 +/-    0.68  0.180 / 0.460
G13     310.6          28.2                8.6 +/-    1.68      15.7 +/-    1.68  0.170 / 0.330
G17     204.0          37.8               13.0 +/-    1.46      19.6 +/-    1.46  0.070 / 0.180
G18     78.8           23.2                9.7 +/-    1.36      19.8 +/-    1.36  0.080 / 0.160
G28     307.3          59.1               10.0 +/-    1.37      11.4 +/-    1.37  0.080 / 0.160
G30     17.5           77.4               11.6 +/-    0.58      11.8 +/-    0.58  0.100 / 0.170