PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-14:27:30
G01     320.0          15.1                3.4 +/-    2.03       8.4 +/-    2.03  0.040 / 0.030
G08     263.2          14.6                4.7 +/-    2.28      11.8 +/-    2.28  0.030 / 0.050
G10     74.2           55.3                4.9 +/-    0.52       5.8 +/-    0.52  0.040 / 0.050
G11     308.2          19.2                3.9 +/-    0.63       8.9 +/-    0.63  0.040 / 0.060
G14     283.0          68.4                4.4 +/-    0.56       4.7 +/-    0.56  0.200 / 0.310
G31     176.1          39.3                6.0 +/-    0.61       8.9 +/-    0.61  0.140 / 0.260
G32     2.9            69.2                4.8 +/-    0.30       5.1 +/-    0.30  0.150 / 0.280