PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-23:42:50
G01     50.0           25.4                8.9 +/-    2.10      17.3 +/-    2.10  0.090 / 0.160
G06     178.1          24.9               10.1 +/-    2.50      19.7 +/-    2.50  0.120 / 0.210
G07     146.5          12.7               10.0 +/-    1.96      26.2 +/-    1.96  0.060 / 0.080
G11     45.3           16.9                7.6 +/-    1.69      18.0 +/-    1.69  0.060 / 0.060
G13     250.9          30.2                9.7 +/-    1.96      16.9 +/-    1.96  0.100 / 0.140
G15     283.0          15.8                8.1 +/-    0.97      19.7 +/-    0.97  0.110 / 0.120
G17     297.3          77.4                8.8 +/-    0.32       9.0 +/-    0.32  0.110 / 0.160
G19     247.1          59.8                9.0 +/-    0.86      10.3 +/-    0.86  0.080 / 0.190
G28     53.5           52.5                8.4 +/-    0.93      10.3 +/-    0.93  0.040 / 0.050
G30     149.1          38.6               11.5 +/-    0.86      17.1 +/-    0.86  0.030 / 0.050