PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-00:42:50
G01     43.9           19.9               10.9 +/-    2.61      24.1 +/-    2.61  0.100 / 0.310
G06     176.7          33.4               16.2 +/-    1.95      26.5 +/-    1.95  0.140 / 0.250
G11     43.8           9.9                 7.6 +/-    4.99      21.3 +/-    4.99  0.080 / 0.080
G13     242.5          25.1               15.5 +/-    1.57      30.2 +/-    1.57  0.060 / 0.100
G15     274.7          13.9               10.8 +/-    1.39      27.7 +/-    1.39  0.040 / 0.050
G17     338.3          75.0               11.7 +/-    0.56      12.1 +/-    0.56  0.040 / 0.060
G19     264.6          66.3               11.7 +/-    1.23      12.7 +/-    1.23  0.020 / 0.030
G24     318.0          14.9                9.4 +/-    2.57      23.3 +/-    2.57  0.020 / 0.030
G28     65.9           48.7               11.3 +/-    1.13      14.5 +/-    1.13  0.120 / 0.530
G30     152.3          29.5               17.0 +/-    2.33      30.1 +/-    2.33  0.130 / 0.520