PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-01:28:10
G02     213.3          59.1               12.5 +/-    0.85      14.3 +/-    0.85  0.030 / 0.030
G06     67.0           77.0               10.0 +/-    0.26      10.2 +/-    0.26  0.040 / 0.030
G12     317.5          33.0                7.5 +/-    1.81      12.4 +/-    1.81  0.080 / 0.120
G17     52.6           37.4                9.2 +/-    1.11      14.0 +/-    1.11  0.080 / 0.100
G19     35.6           51.3                9.3 +/-    1.86      11.5 +/-    1.86  0.050 / 0.090
G24     269.5          42.0               11.4 +/-    2.55      16.0 +/-    2.55  0.060 / 0.070
G28     121.0          15.2               11.9 +/-    1.62      29.4 +/-    1.62  0.040 / 0.060