PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-05:57:40
G08     316.6          14.3                4.6 +/-    4.62      11.7 +/-    4.62  0.130 / 0.380
G10     319.1          57.6                3.4 +/-    0.73       4.0 +/-    0.73  0.330 / 0.330
G14     215.3          20.3                5.6 +/-    2.43      12.3 +/-    2.43  0.040 / 0.040
G15     45.9           16.8                3.9 +/-    2.07       9.4 +/-    2.07  0.030 / 0.030
G20     46.0           55.6                3.9 +/-    0.64       4.7 +/-    0.64  0.070 / 0.080
G21     125.9          64.2                6.6 +/-    0.62       7.2 +/-    0.62  0.080 / 0.080
G24     81.6           29.7                5.9 +/-    1.33      10.3 +/-    1.33  0.130 / 0.300
G27     283.6          37.7                7.0 +/-    1.05      10.5 +/-    1.05  0.150 / 0.230
G32     217.7          47.4                7.5 +/-    1.36       9.8 +/-    1.36  0.060 / 0.080