PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-22:12:50
G01     85.0           32.8               13.8 +/-    0.77      22.9 +/-    0.77  0.060 / 0.100
G07     129.3          42.2               14.7 +/-    0.87      20.7 +/-    0.87  0.050 / 0.090
G11     65.9           39.3               10.8 +/-    0.47      15.9 +/-    0.47  0.060 / 0.090
G13     289.9          36.8               11.7 +/-    1.41      18.0 +/-    1.41  0.050 / 0.090
G15     312.0          12.1                9.0 +/-    5.13      23.9 +/-    5.13  0.030 / 0.050
G17     218.7          53.8               14.7 +/-    1.13      17.8 +/-    1.13  0.030 / 0.060
G18     60.0           23.1               10.9 +/-    0.79      22.2 +/-    0.79  0.040 / 0.060
G19     216.8          30.6               16.8 +/-    0.95      29.0 +/-    0.95  0.040 / 0.050
G28     358.7          61.3               10.2 +/-    0.98      11.5 +/-    0.98  0.120 / 0.190
G30     118.4          70.1               13.8 +/-    0.82      14.6 +/-    0.82  0.120 / 0.170