PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-09:27:40
G01     42.4           17.9                2.0 +/-    0.44       4.6 +/-    0.44  0.040 / 0.060
G06     178.2          34.0                7.9 +/-    1.41      12.7 +/-    1.41  0.040 / 0.070
G13     241.3          23.6                2.7 +/-    1.57       5.5 +/-    1.57  0.030 / 0.030
G15     272.9          13.3                2.5 +/-    1.13       6.5 +/-    1.13  0.030 / 0.040
G17     1.6            71.1                5.2 +/-    0.64       5.5 +/-    0.64  0.250 / 0.310
G19     274.4          69.3                4.6 +/-    0.65       4.9 +/-    0.65  0.200 / 0.220
G24     317.8          16.1                3.0 +/-    3.06       7.2 +/-    3.06  0.080 / 0.180
G28     69.4           47.4                3.7 +/-    0.62       4.8 +/-    0.62  0.080 / 0.200
G30     153.7          29.6                8.3 +/-    1.57      14.8 +/-    1.57  0.090 / 0.140