PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-07:12:40
G08     312.4          16.8                3.5 +/-    1.63       8.3 +/-    1.63  0.250 / 0.230
G10     330.2          59.7                4.2 +/-    0.88       4.8 +/-    0.88  0.190 / 0.330
G14     218.2          25.5                6.4 +/-    2.50      12.3 +/-    2.50  0.040 / 0.070
G15     46.7           11.3                3.0 +/-    2.14       8.2 +/-    2.14  0.050 / 0.060
G20     63.4           45.1                6.3 +/-    1.71       8.5 +/-    1.71  0.030 / 0.030
G21     133.5          58.2                8.4 +/-    0.68       9.7 +/-    0.68  0.030 / 0.040
G24     74.6           30.0                8.0 +/-    0.94      14.1 +/-    0.94  0.140 / 0.260
G27     275.4          37.5                6.7 +/-    1.87      10.1 +/-    1.87  0.170 / 0.250
G32     222.6          53.4                8.8 +/-    1.43      10.7 +/-    1.43  0.090 / 0.070