PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-23:42:50
G01     43.8           20.0                7.8 +/-    3.01      17.3 +/-    3.01  0.180 / 0.310
G06     179.0          29.6                9.7 +/-    1.23      17.2 +/-    1.23  0.300 / 0.350
G13     241.5          25.9                8.6 +/-    1.72      16.4 +/-    1.72  0.100 / 0.230
G15     275.2          13.9                6.1 +/-    1.16      15.6 +/-    1.16  0.080 / 0.220
G17     354.4          73.7                9.1 +/-    0.46       9.4 +/-    0.46  0.040 / 0.050
G19     261.9          65.9                9.5 +/-    1.16      10.3 +/-    1.16  0.050 / 0.050
G24     317.3          16.5                6.4 +/-    2.42      15.3 +/-    2.42  0.060 / 0.080
G28     59.9           52.0                8.2 +/-    0.73      10.1 +/-    0.73  0.060 / 0.080
G30     152.9          32.5                9.6 +/-    0.87      15.9 +/-    0.87  0.040 / 0.040