PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-11:12:30
G02     299.5          80.8                5.7 +/-    0.60       5.7 +/-    0.60  0.110 / 0.210
G05     169.4          25.4                5.6 +/-    2.00      10.9 +/-    2.00  0.140 / 0.200
G06     40.0           46.8                3.4 +/-    1.37       4.4 +/-    1.37  0.030 / 0.030
G12     318.3          65.0                5.2 +/-    0.55       5.7 +/-    0.55  0.030 / 0.030
G17     81.9           12.9                3.6 +/-    2.28       9.5 +/-    2.28  0.040 / 0.040
G19     67.1           33.5                4.2 +/-    1.43       6.9 +/-    1.43  0.060 / 0.040
G24     229.2          26.1                5.9 +/-    2.47      11.3 +/-    2.47  0.060 / 0.060