PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-12:13:10
G02     203.3          30.9                7.4 +/-    1.05      12.8 +/-    1.05  0.070 / 0.100
G06     158.7          67.7                6.3 +/-    0.92       6.7 +/-    0.92  0.060 / 0.090
G12     306.1          14.7                3.7 +/-    2.51       9.1 +/-    2.51  0.040 / 0.050
G17     32.1           52.2                4.5 +/-    0.75       5.5 +/-    0.75  0.030 / 0.040
G19     1.7            65.6                4.7 +/-    0.49       5.1 +/-    0.49  0.120 / 0.250
G24     300.6          36.0                6.3 +/-    1.07       9.9 +/-    1.07  0.090 / 0.280
G28     96.5           38.6                4.6 +/-    0.69       6.8 +/-    0.69  0.040 / 0.040