PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-11:42:40
G02     70.4           22.5                5.0 +/-    1.22      10.3 +/-    1.22  0.030 / 0.050
G05     47.5           51.7                5.8 +/-    0.88       7.1 +/-    0.88  0.030 / 0.070
G12     180.2          19.1                5.6 +/-    0.87      12.5 +/-    0.87  0.120 / 0.190
G13     116.1          22.7                8.7 +/-    1.02      17.8 +/-    1.02  0.080 / 0.190
G15     154.0          24.2                6.2 +/-    2.94      12.4 +/-    2.94  0.060 / 0.080
G20     224.8          11.2               -4.6 +/-   18.39     -12.6 +/-   18.39  0.050 / 0.090
G21     282.3          25.3                8.0 +/-    3.00      15.5 +/-    3.00  0.060 / 0.130
G25     221.7          42.4                8.6 +/-    2.07      12.1 +/-    2.07  0.060 / 0.140
G29     336.5          65.5                5.0 +/-    0.87       5.5 +/-    0.87  0.030 / 0.030