PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-20:57:30
G02     13.4           69.0                8.7 +/-    0.83       9.3 +/-    0.83  0.040 / 0.060
G05     156.4          47.4               12.0 +/-    0.80      15.7 +/-    0.80  0.040 / 0.070
G06     46.7           26.7                7.5 +/-    1.95      14.0 +/-    1.95  0.030 / 0.040
G12     237.4          80.5                8.1 +/-    0.56       8.2 +/-    0.56  0.030 / 0.040
G19     86.0           21.4                8.5 +/-    1.54      18.2 +/-    1.54  0.060 / 0.080
G24     217.6          13.0               12.5 +/-    2.14      32.8 +/-    2.14  0.050 / 0.090
G25     312.4          41.4                8.7 +/-    0.95      12.4 +/-    0.95  0.130 / 0.610
G29     295.6          16.1                8.8 +/-    1.93      21.3 +/-    1.93  0.160 / 0.620