PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-05:12:50
G01     233.6          25.4                5.1 +/-    1.90       9.9 +/-    1.90  0.040 / 0.030
G03     308.0          58.9                4.2 +/-    1.17       4.8 +/-    1.17  0.040 / 0.030
G14     74.7           32.5                3.6 +/-    2.15       5.9 +/-    2.15  0.080 / 0.200
G16     153.8          33.3                6.5 +/-    1.57      10.6 +/-    1.57  0.180 / 0.210
G18     209.5          14.7                5.7 +/-    2.12      14.4 +/-    2.12  0.080 / 0.130
G22     262.7          74.9                4.4 +/-    0.67       4.5 +/-    0.67  0.080 / 0.110
G23     300.3          32.4                3.4 +/-    2.05       5.7 +/-    2.05  0.180 / 0.290
G26     117.2          49.6                6.9 +/-    0.53       8.8 +/-    0.53  0.250 / 0.310
G31     42.4           41.1                1.7 +/-    1.34       2.5 +/-    1.34  0.100 / 0.120
G32     89.7           13.7                4.2 +/-    3.02      10.8 +/-    3.02  0.080 / 0.120