PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-18:28:10
G02     222.7          65.4               11.2 +/-    0.99      12.2 +/-    0.99  0.140 / 0.280
G06     47.0           68.8               10.4 +/-    0.45      11.1 +/-    0.45  0.170 / 0.390
G12     319.4          40.0                9.6 +/-    1.13      13.9 +/-    1.13  0.040 / 0.050
G17     60.7           30.4                9.3 +/-    1.61      16.1 +/-    1.61  0.050 / 0.050
G19     47.0           44.1                9.8 +/-    1.00      13.3 +/-    1.00  0.070 / 0.110
G24     257.6          39.5               13.3 +/-    2.50      19.5 +/-    2.50  0.080 / 0.120
G28     125.0          14.2               11.0 +/-    1.74      28.0 +/-    1.74  0.060 / 0.080