PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-08:57:40
G10     297.4          52.3                5.0 +/-    1.78       6.1 +/-    1.78  0.030 / 0.030
G14     209.6          11.9               -1.5 +/-   16.72      -3.9 +/-   16.72  0.030 / 0.030
G15     46.0           27.6                2.8 +/-    1.88       5.2 +/-    1.88  0.150 / 0.120
G20     351.7          65.3                3.8 +/-    0.48       4.1 +/-    0.48  0.110 / 0.210
G21     99.5           71.8                5.5 +/-    0.65       5.8 +/-    0.65  0.140 / 0.470
G24     96.6           26.1                5.1 +/-    1.39       9.6 +/-    1.39  0.200 / 0.480
G27     303.0          32.8                4.7 +/-    1.23       7.8 +/-    1.23  0.050 / 0.060
G32     211.0          26.8                5.6 +/-    2.06      10.5 +/-    2.06  0.070 / 0.060