PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-22:58:10
G01     65.1           31.8               11.1 +/-    1.75      18.8 +/-    1.75  0.100 / 0.130
G07     139.4          22.1               12.7 +/-    1.03      26.6 +/-    1.03  0.070 / 0.110
G11     49.8           26.4                8.8 +/-    2.30      16.7 +/-    2.30  0.040 / 0.050
G13     267.8          37.3               12.2 +/-    3.84      18.6 +/-    3.84  0.040 / 0.050
G15     297.9          16.2                9.8 +/-    1.65      23.7 +/-    1.65  0.120 / 0.260
G17     244.4          74.8               12.4 +/-    0.38      12.8 +/-    0.38  0.130 / 0.310
G18     43.4           13.7               10.1 +/-    1.60      25.9 +/-    1.60  0.110 / 0.130
G19     227.2          45.9               13.2 +/-    2.19      17.6 +/-    2.19  0.120 / 0.090
G28     20.6           59.6               10.2 +/-    0.63      11.7 +/-    0.63  0.040 / 0.030
G30     140.0          56.8               12.9 +/-    0.60      15.1 +/-    0.60  0.040 / 0.040