PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-15:58:10
G01     46.3           22.4                7.3 +/-    0.59      15.1 +/-    0.59  0.060 / 0.070
G06     175.2          31.6               12.8 +/-    1.54      21.7 +/-    1.54  0.050 / 0.080
G11     43.6           10.3                6.4 +/-    3.41      17.7 +/-    3.41  0.070 / 0.150
G13     245.2          27.5               10.1 +/-    1.72      18.7 +/-    1.72  0.070 / 0.150
G15     281.5          14.1                9.1 +/-    1.07      23.0 +/-    1.07  0.040 / 0.080
G17     338.0          76.4               10.7 +/-    0.28      11.0 +/-    0.28  0.040 / 0.080
G19     253.0          60.8               10.9 +/-    0.86      12.3 +/-    0.86  0.130 / 0.490
G24     318.3          13.3               -4.5 +/-   33.09     -11.6 +/-   33.09  0.130 / 0.610
G28     59.7           50.9               10.7 +/-    0.79      13.3 +/-    0.79  0.170 / 0.300
G30     152.2          37.2               11.9 +/-    0.84      18.1 +/-    0.84  0.150 / 0.240