PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-04:27:50
G08     261.1          15.3                9.9 +/-    1.01      24.3 +/-    1.01  0.150 / 0.370
G10     72.7           55.4                6.3 +/-    0.46       7.5 +/-    0.46  0.170 / 0.360
G11     306.6          21.1                5.7 +/-    2.18      12.2 +/-    2.18  0.130 / 0.270
G14     278.9          67.7                5.6 +/-    0.53       6.0 +/-    0.53  0.140 / 0.380
G18     308.4          36.9                4.7 +/-    1.98       7.2 +/-    1.98  0.040 / 0.040
G20     92.2           48.8               14.2 +/-    1.24      18.2 +/-    1.24  0.040 / 0.040
G27     227.2          11.6               10.2 +/-    1.68      27.4 +/-    1.68  0.200 / 0.230
G31     175.1          39.1                7.5 +/-    1.50      11.1 +/-    1.50  0.160 / 0.340
G32     3.1            69.5                4.8 +/-    0.47       5.1 +/-    0.47  0.090 / 0.090