PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/14-02:28:10
G01     37.4           9.7                 2.7 +/-    6.07       7.4 +/-    6.07  0.040 / 0.070
G02     199.5          16.5                6.6 +/-    1.96      15.8 +/-    1.96  0.040 / 0.060
G06     176.8          44.4                6.9 +/-    1.26       9.4 +/-    1.26  0.060 / 0.040
G13     230.1          16.6                5.4 +/-    1.77      12.9 +/-    1.77  0.050 / 0.050
G17     19.5           62.0                5.1 +/-    0.49       5.7 +/-    0.49  0.120 / 0.100
G19     302.3          71.1                5.0 +/-    0.27       5.2 +/-    0.27  0.070 / 0.110
G24     311.5          28.3                3.1 +/-    1.64       5.6 +/-    1.64  0.040 / 0.030
G28     79.6           45.0                5.3 +/-    0.80       7.2 +/-    0.80  0.040 / 0.030
G30     156.6          19.5                6.0 +/-    1.11      13.4 +/-    1.11  0.120 / 0.370