PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-20:57:50
G01     40.0           14.5                9.4 +/-    1.49      23.6 +/-    1.49  0.100 / 0.290
G02     199.3          11.0                9.1 +/-   26.89      24.9 +/-   26.89  0.120 / 0.390
G06     173.5          42.8               15.5 +/-    0.95      21.6 +/-    0.95  0.100 / 0.180
G13     235.6          20.3               15.7 +/-    0.95      34.3 +/-    0.95  0.070 / 0.170
G15     269.1          11.3               12.8 +/-    3.90      34.8 +/-    3.90  0.210 / 0.470
G17     358.5          70.3               13.2 +/-    1.07      13.9 +/-    1.07  0.240 / 0.440
G19     282.2          69.1               13.1 +/-    0.54      13.9 +/-    0.54  0.040 / 0.050
G24     315.5          21.6                8.7 +/-    1.76      18.4 +/-    1.76  0.030 / 0.040
G28     75.3           45.4               12.8 +/-    0.46      17.2 +/-    0.46  0.060 / 0.080
G30     155.0          24.2               16.3 +/-    2.17      32.4 +/-    2.17  0.050 / 0.080