PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/21-01:57:40
G01     283.7          41.4                5.7 +/-    5.50       8.1 +/-    5.50  0.060 / 0.070
G03     313.5          20.3                3.8 +/-    1.35       8.4 +/-    1.35  0.060 / 0.070
G10     123.7          24.0                6.2 +/-    1.06      12.5 +/-    1.06  0.040 / 0.060
G11     258.3          24.0                7.8 +/-    2.69      15.6 +/-    2.69  0.050 / 0.040
G14     30.8           56.1                5.1 +/-    1.27       6.0 +/-    1.27  0.060 / 0.060
G18     243.4          44.9                8.0 +/-    5.63      10.8 +/-    5.63  0.050 / 0.070
G22     314.4          42.5                6.5 +/-    0.68       9.1 +/-    0.68  0.090 / 0.220
G25     59.3           17.5                5.4 +/-    0.85      12.7 +/-    0.85  0.080 / 0.150
G31     92.3           79.5                5.3 +/-    0.40       5.4 +/-    0.40  0.090 / 0.130
G32     56.7           37.5                4.9 +/-    1.17       7.5 +/-    1.17  0.080 / 0.120