PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-16:43:00
G01     51.1           26.0                7.9 +/-    2.28      15.2 +/-    2.28  0.040 / 0.050
G06     178.0          22.4               13.4 +/-    2.85      27.7 +/-    2.85  0.040 / 0.060
G07     144.7          10.2               11.9 +/-    1.52      33.1 +/-    1.52  0.290 / 0.290
G11     44.9           16.8                7.2 +/-    2.55      17.3 +/-    2.55  0.340 / 0.300
G13     251.4          32.1               10.0 +/-    2.71      16.8 +/-    2.71  0.190 / 0.370
G15     285.0          16.0               11.5 +/-    1.31      27.8 +/-    1.31  0.130 / 0.350
G17     292.7          78.5               10.5 +/-    0.51      10.7 +/-    0.51  0.090 / 0.090
G19     243.1          59.4                9.8 +/-    1.38      11.2 +/-    1.38  0.180 / 0.140
G28     41.0           56.9                9.8 +/-    1.13      11.4 +/-    1.13  0.030 / 0.020
G30     148.2          41.0               10.5 +/-    0.79      15.1 +/-    0.79  0.030 / 0.030