PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-15:27:30
G01     91.8           31.4               10.5 +/-    0.61      17.8 +/-    0.61  0.020 / 0.040
G07     124.2          46.9               10.8 +/-    1.50      14.1 +/-    1.50  0.030 / 0.040
G11     70.0           40.2                9.7 +/-    0.64      14.1 +/-    0.64  0.080 / 0.120
G13     296.0          35.7                9.8 +/-    0.90      15.4 +/-    0.90  0.100 / 0.100
G17     213.6          51.6               12.8 +/-    1.26      15.8 +/-    1.26  0.040 / 0.080
G18     65.0           24.0                8.9 +/-    0.93      17.8 +/-    0.93  0.050 / 0.090
G19     214.2          23.3               13.5 +/-    1.95      27.5 +/-    1.95  0.050 / 0.050
G28     346.2          61.8                8.6 +/-    0.62       9.6 +/-    0.62  0.040 / 0.060
G30     97.4           77.6               10.5 +/-    0.63      10.7 +/-    0.63  0.040 / 0.060