PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-08:58:00
G02     201.8          25.5                5.2 +/-    2.72      10.0 +/-    2.72  0.070 / 0.070
G06     167.9          60.4                8.6 +/-    0.73       9.7 +/-    0.73  0.060 / 0.060
G17     31.3           52.9                5.2 +/-    0.95       6.4 +/-    0.95  0.040 / 0.020
G19     332.5          69.5                5.3 +/-    0.37       5.7 +/-    0.37  0.030 / 0.030
G24     302.3          37.1                5.3 +/-    1.34       8.0 +/-    1.34  0.030 / 0.030
G28     93.6           37.5                7.9 +/-    1.11      11.9 +/-    1.11  0.030 / 0.030
G30     158.2          10.3                6.2 +/-    3.06      17.3 +/-    3.06  0.300 / 0.580