PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-01:12:50
G01     39.7           14.0                6.2 +/-    3.50      15.9 +/-    3.50  0.120 / 0.310
G02     198.8          12.7                8.0 +/-    1.26      20.9 +/-    1.26  0.210 / 0.310
G06     175.1          41.9                9.5 +/-    0.85      13.4 +/-    0.85  0.070 / 0.070
G13     235.6          19.9                9.0 +/-    4.53      19.9 +/-    4.53  0.070 / 0.070
G15     267.4          11.3                8.8 +/-    1.27      24.0 +/-    1.27  0.080 / 0.270
G17     0.6            69.7                6.3 +/-    0.36       6.6 +/-    0.36  0.100 / 0.250
G19     287.5          70.3                6.1 +/-    0.58       6.5 +/-    0.58  0.060 / 0.060
G24     315.6          21.4                6.1 +/-    3.69      12.9 +/-    3.69  0.060 / 0.070
G28     76.4           44.8                7.1 +/-    0.77       9.6 +/-    0.77  0.140 / 0.260
G30     154.5          21.6                9.1 +/-    1.92      19.3 +/-    1.92  0.130 / 0.360