PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-21:27:50
G01     47.1           23.1                9.9 +/-    0.74      20.3 +/-    0.74  0.140 / 0.310
G06     176.6          29.5               17.4 +/-    1.30      30.7 +/-    1.30  0.090 / 0.230
G11     44.2           12.9                7.9 +/-    2.48      20.7 +/-    2.48  0.050 / 0.130
G13     246.8          28.1               15.2 +/-    1.50      27.7 +/-    1.50  0.050 / 0.130
G15     280.1          15.0               11.8 +/-    1.90      29.3 +/-    1.90  0.160 / 0.300
G17     313.9          77.0               14.0 +/-    0.86      14.4 +/-    0.86  0.170 / 0.380
G19     252.9          61.9               14.3 +/-    0.65      16.0 +/-    0.65  0.040 / 0.050
G24     318.7          11.4              -12.3 +/-   33.49     -33.3 +/-   33.49  0.040 / 0.070
G28     58.7           51.1               11.8 +/-    0.55      14.7 +/-    0.55  0.110 / 0.260
G30     151.1          36.1               15.7 +/-    0.72      24.4 +/-    0.72  0.140 / 0.250