PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/08-20:57:40
G03     187.5          14.6                9.5 +/-    2.28      23.9 +/-    2.28  0.060 / 0.080
G07     299.7          44.4               10.5 +/-    2.76      14.2 +/-    2.76  0.060 / 0.090
G08     133.9          34.0               12.4 +/-    1.10      20.0 +/-    1.10  0.050 / 0.060
G09     318.3          69.8                9.3 +/-    0.49       9.8 +/-    0.49  0.070 / 0.060
G16     42.2           36.1                7.4 +/-    1.03      11.5 +/-    1.03  0.090 / 0.150
G23     131.8          75.5                9.6 +/-    0.88       9.9 +/-    0.88  0.130 / 0.150
G26     44.8           10.9                8.9 +/-    0.84      24.4 +/-    0.84  0.190 / 0.270
G27     95.0           36.2               10.3 +/-    0.89      16.0 +/-    0.89  0.300 / 0.330
G30     278.5          16.1                8.6 +/-    2.60      20.7 +/-    2.60  0.040 / 0.030