PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-19:42:50
G02     200.2          18.5               12.2 +/-    1.30      27.9 +/-    1.30  0.070 / 0.150
G06     170.2          52.6               10.9 +/-    1.29      13.3 +/-    1.29  0.090 / 0.180
G13     228.8          14.5               12.8 +/-    4.26      32.2 +/-    4.26  0.160 / 0.190
G17     15.9           63.0                9.2 +/-    0.87      10.1 +/-    0.87  0.110 / 0.150
G19     308.8          70.7                9.0 +/-    1.00       9.5 +/-    1.00  0.040 / 0.050
G24     311.1          28.6                8.6 +/-    1.40      15.6 +/-    1.40  0.030 / 0.050
G28     85.7           40.9               10.0 +/-    0.38      14.4 +/-    0.38  0.040 / 0.100
G30     156.9          16.5               12.6 +/-    2.31      30.2 +/-    2.31  0.040 / 0.090