PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-00:27:50
G01     44.6           20.7                8.1 +/-    3.09      17.6 +/-    3.09  0.230 / 0.110
G06     176.9          32.3               13.6 +/-    1.99      22.8 +/-    1.99  0.150 / 0.150
G11     43.9           10.9                5.4 +/-    4.85      14.8 +/-    4.85  0.030 / 0.040
G13     243.6          25.9               11.2 +/-    1.69      21.4 +/-    1.69  0.050 / 0.030
G15     275.9          14.3                8.8 +/-    1.12      22.2 +/-    1.12  0.040 / 0.050
G17     333.1          75.7                8.7 +/-    0.49       9.0 +/-    0.49  0.040 / 0.040
G19     261.6          65.5                9.9 +/-    0.92      10.8 +/-    0.92  0.030 / 0.020
G24     318.3          13.9                4.9 +/-    1.73      12.4 +/-    1.73  0.020 / 0.020
G28     64.2           49.3                9.3 +/-    0.68      11.8 +/-    0.68  0.280 / 0.420
G30     152.0          30.9               11.1 +/-    1.49      19.1 +/-    1.49  0.310 / 0.360