PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/01-21:13:00
G02     61.0           32.3                8.1 +/-    0.72      13.6 +/-    0.72  0.030 / 0.050
G05     54.5           58.7                9.0 +/-    0.83      10.3 +/-    0.83  0.030 / 0.050
G12     181.5          26.6               13.2 +/-    0.82      24.8 +/-    0.82  0.090 / 0.130
G13     125.5          17.2               12.4 +/-    2.76      29.1 +/-    2.76  0.050 / 0.110
G15     164.4          13.3               14.9 +/-    1.80      38.6 +/-    1.80  0.050 / 0.060
G21     273.4          18.3               10.8 +/-    2.72      24.8 +/-    2.72  0.040 / 0.060
G25     231.5          49.6               11.0 +/-    0.59      13.9 +/-    0.59  0.050 / 0.100
G29     329.3          56.2                8.6 +/-    0.60      10.1 +/-    0.60  0.060 / 0.100