PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-05:43:00
G02     58.3           32.9                2.6 +/-    0.46       4.3 +/-    0.46  0.090 / 0.100
G05     61.2           62.0                4.9 +/-    0.46       5.4 +/-    0.46  0.070 / 0.100
G12     186.3          36.5                6.5 +/-    1.61      10.0 +/-    1.61  0.050 / 0.110
G13     131.0          13.1                4.0 +/-    2.62      10.5 +/-    2.62  0.060 / 0.130
G15     164.5          10.3               -6.4 +/-   15.15     -17.6 +/-   15.15  0.130 / 0.520
G20     212.5          39.7                6.6 +/-    0.67       9.7 +/-    0.67  0.170 / 0.500
G21     269.1          16.1                5.2 +/-    2.68      12.6 +/-    2.68  0.160 / 0.460
G25     243.2          53.9                5.6 +/-    0.39       6.8 +/-    0.39  0.160 / 0.520
G29     326.6          52.0                2.8 +/-    0.95       3.4 +/-    0.95  0.040 / 0.040