PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/21-21:43:10
G01     314.3          27.9                8.3 +/-    1.56      15.2 +/-    1.56  0.080 / 0.250
G10     94.1           45.4                7.8 +/-    0.72      10.4 +/-    0.72  0.170 / 0.350
G11     296.0          24.6                8.9 +/-    1.88      17.6 +/-    1.88  0.040 / 0.050
G14     315.6          70.2                1.9 +/-    0.97       2.0 +/-    0.97  0.050 / 0.040
G20     113.9          20.1                8.7 +/-    1.77      19.1 +/-    1.77  0.200 / 0.220
G22     305.4          15.8                8.0 +/-    2.34      19.4 +/-    2.34  0.140 / 0.250
G25     93.5           12.2               10.6 +/-    2.02      28.0 +/-    2.02  0.090 / 0.170
G31     171.6          53.3               10.2 +/-    0.98      12.4 +/-    0.98  0.100 / 0.170
G32     24.8           59.7                7.8 +/-    0.88       8.9 +/-    0.88  0.040 / 0.040