PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-07:43:10
G02     201.6          32.5                7.4 +/-    0.94      12.3 +/-    0.94  0.140 / 0.290
G06     161.7          65.5                9.9 +/-    0.59      10.7 +/-    0.59  0.110 / 0.360
G12     305.7          15.4                1.7 +/-    2.93       4.1 +/-    2.93  0.080 / 0.140
G17     32.9           51.5                5.3 +/-    0.46       6.6 +/-    0.46  0.070 / 0.120
G19     358.6          66.5                5.8 +/-    0.64       6.3 +/-    0.64  0.060 / 0.070
G24     302.3          35.0                4.6 +/-    0.67       7.3 +/-    0.67  0.050 / 0.070
G28     93.8           40.8                8.1 +/-    0.69      11.7 +/-    0.69  0.040 / 0.050