PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-03:12:50
G02     244.7          78.0                3.8 +/-    0.64       3.9 +/-    0.64  0.030 / 0.030
G05     170.6          17.3                5.9 +/-    1.10      14.0 +/-    1.10  0.030 / 0.040
G06     40.5           59.2                3.8 +/-    0.44       4.3 +/-    0.44  0.060 / 0.090
G12     321.3          51.2                3.2 +/-    0.41       4.0 +/-    0.41  0.060 / 0.070
G17     69.8           24.8                5.0 +/-    2.01       9.8 +/-    2.01  0.070 / 0.100
G19     57.3           38.7                3.8 +/-    1.45       5.6 +/-    1.45  0.070 / 0.100
G24     245.5          34.7                6.9 +/-    2.48      11.1 +/-    2.48  0.120 / 0.150
G25     316.7          11.7               -4.4 +/-   28.15     -11.8 +/-   28.15  0.090 / 0.150