PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-15:28:00
G01     80.4           33.2               10.0 +/-    0.82      16.4 +/-    0.82  0.040 / 0.030
G07     132.2          38.3               12.9 +/-    0.60      19.3 +/-    0.60  0.030 / 0.020
G11     59.8           35.5               10.0 +/-    1.35      15.7 +/-    1.35  0.050 / 0.070
G13     284.5          37.8               12.3 +/-    0.86      18.6 +/-    0.86  0.050 / 0.060
G15     311.1          11.8                9.2 +/-    1.95      24.7 +/-    1.95  0.280 / 0.170
G17     222.0          61.3               12.2 +/-    1.30      13.7 +/-    1.30  0.280 / 0.220
G18     55.6           21.5                8.7 +/-    3.97      18.6 +/-    3.97  0.060 / 0.090
G19     218.9          31.9               12.0 +/-    1.77      20.3 +/-    1.77  0.050 / 0.070
G28     4.8            60.9               11.2 +/-    1.00      12.6 +/-    1.00  0.080 / 0.100
G30     124.2          70.2               12.4 +/-    0.70      13.1 +/-    0.70  0.070 / 0.110