PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-11:57:30
G08     268.4          19.3                6.0 +/-    2.26      13.3 +/-    2.26  0.150 / 0.340
G10     58.0           58.5                5.6 +/-    0.56       6.4 +/-    0.56  0.190 / 0.410
G14     262.3          65.8                5.9 +/-    0.68       6.4 +/-    0.68  0.140 / 0.340
G18     312.7          32.6                3.2 +/-    0.86       5.3 +/-    0.86  0.080 / 0.350
G20     93.3           37.9                5.9 +/-    1.81       8.9 +/-    1.81  0.040 / 0.040
G21     153.6          14.6                5.6 +/-    2.94      14.2 +/-    2.94  0.040 / 0.050
G24     39.9           9.9                 2.8 +/-    2.15       7.8 +/-    2.15  0.030 / 0.030
G27     235.5          18.1                5.5 +/-    3.93      12.8 +/-    3.93  0.030 / 0.030
G31     180.3          26.1                5.6 +/-    1.71      10.7 +/-    1.71  0.180 / 0.140
G32     311.7          74.8                6.0 +/-    0.43       6.2 +/-    0.43  0.250 / 0.240