PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-15:12:40
G01     39.8           14.7                7.0 +/-    2.69      17.4 +/-    2.69  0.040 / 0.100
G06     173.7          40.2               10.5 +/-    0.67      15.2 +/-    0.67  0.040 / 0.060
G13     235.5          21.8               10.3 +/-    1.64      21.6 +/-    1.64  0.030 / 0.030
G15     269.9          11.8                8.4 +/-    1.68      22.6 +/-    1.68  0.030 / 0.020
G17     354.5          71.8                9.3 +/-    0.78       9.8 +/-    0.78  0.060 / 0.090
G19     282.7          70.8                8.2 +/-    0.63       8.7 +/-    0.63  0.050 / 0.070
G24     316.2          19.4                5.2 +/-    1.93      11.5 +/-    1.93  0.040 / 0.030
G28     66.4           50.9                8.3 +/-    1.44      10.4 +/-    1.44  0.040 / 0.030
G30     154.6          25.8                9.2 +/-    2.05      17.6 +/-    2.05  0.160 / 0.290