PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/02-16:27:50
G02     48.8           42.5                7.8 +/-    0.79      10.9 +/-    0.79  0.040 / 0.070
G05     89.6           70.8                5.3 +/-    0.59       5.5 +/-    0.59  0.060 / 0.060
G12     184.8          42.5                7.1 +/-    1.75      10.0 +/-    1.75  0.040 / 0.060
G21     263.2          10.9                1.7 +/-   19.07       4.6 +/-   19.07  0.040 / 0.060
G25     250.2          57.9                8.2 +/-    0.95       9.6 +/-    0.95  0.160 / 0.510
G29     321.2          44.3                7.0 +/-    0.98       9.5 +/-    0.98  0.130 / 0.530