PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/08-09:42:50
G01     44.2           20.3                3.1 +/-    1.15       6.7 +/-    1.15  0.060 / 0.070
G06     175.0          31.7                6.7 +/-    0.69      11.4 +/-    0.69  0.050 / 0.080
G11     43.9           12.1                2.7 +/-    2.08       7.1 +/-    2.08  0.030 / 0.040
G13     242.8          27.5                7.0 +/-    3.54      13.0 +/-    3.54  0.030 / 0.040
G15     277.2          14.4                4.0 +/-    1.28      10.1 +/-    1.28  0.090 / 0.170
G17     336.2          76.5                7.5 +/-    0.52       7.7 +/-    0.52  0.100 / 0.210
G19     259.5          66.8                5.6 +/-    0.43       6.0 +/-    0.43  0.180 / 0.280
G24     318.5          11.6               -3.5 +/-   19.96      -9.4 +/-   19.96  0.190 / 0.310
G28     51.5           55.4                4.2 +/-    0.40       5.0 +/-    0.40  0.040 / 0.060
G30     153.0          37.4                8.1 +/-    2.21      12.3 +/-    2.21  0.040 / 0.090