PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-00:27:40
G08     296.5          21.2                9.5 +/-    1.13      20.4 +/-    1.13  0.070 / 0.090
G10     14.6           62.7                8.4 +/-    0.72       9.4 +/-    0.72  0.070 / 0.100
G14     230.3          46.3               12.8 +/-    2.11      17.0 +/-    2.11  0.070 / 0.140
G18     317.9          11.6               -0.2 +/-   24.03      -0.5 +/-   24.03  0.100 / 0.120
G20     67.9           51.1                9.4 +/-    0.52      11.7 +/-    0.52  0.030 / 0.040
G21     147.8          39.8               11.5 +/-    0.67      16.8 +/-    0.67  0.040 / 0.040
G24     55.5           25.4                9.0 +/-    0.86      17.4 +/-    0.86  0.060 / 0.090
G27     253.1          31.3               11.7 +/-    2.00      20.0 +/-    2.00  0.050 / 0.140
G32     248.0          68.8               11.9 +/-    0.75      12.6 +/-    0.75  0.070 / 0.130