PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-15:12:50
G01     93.6           30.3               12.1 +/-    0.99      21.0 +/-    0.99  0.040 / 0.060
G07     122.7          44.1               11.3 +/-    0.87      15.4 +/-    0.87  0.040 / 0.060
G08     42.0           12.2                7.8 +/-    2.69      20.8 +/-    2.69  0.040 / 0.080
G11     72.3           41.6                9.0 +/-    0.80      12.8 +/-    0.80  0.040 / 0.070
G13     298.0          35.8               11.3 +/-    1.86      17.7 +/-    1.86  0.040 / 0.050
G17     211.3          47.7               12.1 +/-    0.68      15.7 +/-    0.68  0.040 / 0.040
G18     66.4           24.0               10.0 +/-    0.58      20.0 +/-    0.58  0.030 / 0.050
G19     212.1          24.7               11.0 +/-    1.47      21.7 +/-    1.47  0.070 / 0.060
G28     329.3          61.0                8.6 +/-    0.56       9.7 +/-    0.56  0.060 / 0.130
G30     96.4           76.3               10.7 +/-    0.75      11.0 +/-    0.75  0.070 / 0.140