PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-17:12:40
G01     40.6           15.8                8.1 +/-    1.61      19.7 +/-    1.61  0.150 / 0.290
G06     174.7          38.3               11.7 +/-    1.77      17.5 +/-    1.77  0.130 / 0.260
G13     236.7          22.7               12.0 +/-    3.15      24.8 +/-    3.15  0.040 / 0.070
G15     270.5          12.3               10.5 +/-    0.97      27.9 +/-    0.97  0.040 / 0.070
G17     356.0          71.9               10.7 +/-    0.46      11.2 +/-    0.46  0.130 / 0.340
G19     277.9          70.0               10.7 +/-    0.69      11.3 +/-    0.69  0.110 / 0.350
G24     316.5          18.8               10.1 +/-    2.02      22.8 +/-    2.02  0.030 / 0.040
G28     65.2           51.1               10.3 +/-    0.49      12.9 +/-    0.49  0.040 / 0.040
G30     153.8          25.5               10.3 +/-    0.94      19.9 +/-    0.94  0.040 / 0.040