PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-23:12:50
G01     45.0           21.1                9.1 +/-    3.16      19.5 +/-    3.16  0.080 / 0.240
G06     176.5          32.1               15.7 +/-    1.51      26.3 +/-    1.51  0.090 / 0.210
G11     43.9           10.9                8.9 +/-    2.76      24.4 +/-    2.76  0.070 / 0.090
G13     244.0          26.3               12.9 +/-    1.78      24.5 +/-    1.78  0.060 / 0.080
G15     276.7          14.3               10.6 +/-    1.28      26.9 +/-    1.28  0.170 / 0.210
G17     326.0          76.0               11.8 +/-    0.46      12.1 +/-    0.46  0.180 / 0.200
G19     259.7          64.7               12.9 +/-    0.99      14.1 +/-    0.99  0.120 / 0.340
G24     318.3          13.6                6.6 +/-    2.14      17.0 +/-    2.14  0.140 / 0.350
G28     63.2           49.6               10.0 +/-    0.68      12.7 +/-    0.68  0.080 / 0.090
G30     152.0          32.1               13.4 +/-    1.01      22.5 +/-    1.01  0.070 / 0.100