PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-03:42:50
G02     217.6          64.8                5.6 +/-    0.96       6.1 +/-    0.96  0.290 / 0.390
G06     54.0           74.0                3.8 +/-    0.30       3.9 +/-    0.30  0.200 / 0.360
G12     319.0          37.1                2.3 +/-    1.26       3.5 +/-    1.26  0.050 / 0.070
G17     58.2           32.8                2.9 +/-    1.36       4.8 +/-    1.36  0.060 / 0.050
G19     42.4           47.5                3.5 +/-    0.84       4.5 +/-    0.84  0.030 / 0.020
G24     263.0          40.9                4.0 +/-    3.48       5.7 +/-    3.48  0.030 / 0.020
G28     124.5          11.2                5.6 +/-    1.96      15.3 +/-    1.96  0.060 / 0.080