PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-09:27:40
G01     43.8           19.8                3.4 +/-    0.60       7.4 +/-    0.60  0.050 / 0.090
G06     174.9          32.4                7.4 +/-    0.68      12.4 +/-    0.68  0.050 / 0.080
G11     43.9           11.7                2.6 +/-    1.32       6.9 +/-    1.32  0.170 / 0.350
G13     242.2          27.1                9.1 +/-    2.20      16.9 +/-    2.20  0.190 / 0.310
G15     276.4          14.3                4.7 +/-    1.53      12.0 +/-    1.53  0.040 / 0.030
G17     339.3          76.1                6.8 +/-    0.66       7.0 +/-    0.66  0.040 / 0.030
G19     261.0          67.2                6.3 +/-    0.38       6.8 +/-    0.38  0.090 / 0.200
G24     318.4          12.1                0.1 +/-    4.43       0.3 +/-    4.43  0.090 / 0.250
G28     52.4           55.2                4.2 +/-    0.36       5.0 +/-    0.36  0.060 / 0.060
G30     153.3          36.9                7.4 +/-    1.99      11.3 +/-    1.99  0.070 / 0.060