PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-08:42:40
G02     205.7          44.5                8.3 +/-    0.71      11.3 +/-    0.71  0.070 / 0.130
G06     134.6          76.7                6.9 +/-    0.48       7.0 +/-    0.48  0.060 / 0.140
G17     43.2           43.0                4.2 +/-    1.12       5.9 +/-    1.12  0.030 / 0.050
G19     20.2           58.7                5.1 +/-    0.93       5.9 +/-    0.93  0.030 / 0.060
G24     289.1          40.1                9.4 +/-    3.86      13.7 +/-    3.86  0.040 / 0.030
G28     106.3          33.0                7.5 +/-    1.15      12.4 +/-    1.15  0.050 / 0.030