PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-17:27:50
G01     52.8           27.0                9.3 +/-    2.03      17.4 +/-    2.03  0.040 / 0.060
G06     178.6          20.3               13.0 +/-    1.14      28.4 +/-    1.14  0.040 / 0.060
G07     144.0          11.5               11.4 +/-    3.57      30.9 +/-    3.57  0.130 / 0.270
G11     45.3           18.2               10.1 +/-    2.13      23.2 +/-    2.13  0.170 / 0.370
G13     253.5          33.1               12.1 +/-    1.69      19.9 +/-    1.69  0.120 / 0.200
G15     286.7          16.3               12.1 +/-    1.35      29.1 +/-    1.35  0.150 / 0.250
G17     285.1          78.5               13.0 +/-    0.87      13.3 +/-    0.87  0.060 / 0.140
G19     240.3          57.7               13.3 +/-    1.86      15.4 +/-    1.86  0.100 / 0.150
G28     38.2           57.4               12.2 +/-    0.78      14.1 +/-    0.78  0.030 / 0.030
G30     147.1          42.2               13.0 +/-    1.13      18.3 +/-    1.13  0.030 / 0.030