PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/05-17:58:00
G01     81.2           33.2                9.9 +/-    0.81      16.3 +/-    0.81  0.150 / 0.250
G07     131.8          39.2               13.4 +/-    0.70      19.7 +/-    0.70  0.150 / 0.220
G11     61.1           36.5               12.1 +/-    1.12      18.6 +/-    1.12  0.040 / 0.060
G13     285.5          37.6               14.6 +/-    0.72      22.2 +/-    0.72  0.040 / 0.070
G15     310.6          12.3               12.6 +/-    2.27      33.5 +/-    2.27  0.030 / 0.020
G17     221.5          58.7               15.1 +/-    1.57      17.3 +/-    1.57  0.030 / 0.020
G18     56.6           22.0               10.2 +/-    3.01      21.4 +/-    3.01  0.120 / 0.250
G19     218.6          32.2               14.3 +/-    1.89      24.0 +/-    1.89  0.090 / 0.230
G28     4.0            60.9               11.7 +/-    1.11      13.2 +/-    1.11  0.060 / 0.120
G30     123.5          69.7               14.2 +/-    1.04      15.1 +/-    1.04  0.080 / 0.090