PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-14:27:50
G01     46.6           22.7                5.2 +/-    2.24      10.8 +/-    2.24  0.060 / 0.080
G06     175.1          31.4               10.0 +/-    1.43      17.1 +/-    1.43  0.050 / 0.070
G11     43.6           10.3                5.9 +/-    3.34      16.3 +/-    3.34  0.130 / 0.350
G13     245.5          27.8                8.5 +/-    2.15      15.7 +/-    2.15  0.170 / 0.350
G15     282.7          14.0                6.4 +/-    1.24      16.2 +/-    1.24  0.030 / 0.050
G17     341.2          76.4                7.4 +/-    0.54       7.6 +/-    0.54  0.030 / 0.070
G19     251.6          60.0                7.8 +/-    0.81       8.9 +/-    0.81  0.070 / 0.200
G24     318.3          13.3               -0.3 +/-   21.45      -0.9 +/-   21.45  0.130 / 0.230
G28     58.8           51.1                6.5 +/-    0.77       8.1 +/-    0.77  0.070 / 0.150
G30     152.1          38.2                7.3 +/-    0.75      10.9 +/-    0.75  0.070 / 0.140