PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-22:58:10
G01     59.0           30.0               10.2 +/-    0.84      17.9 +/-    0.84  0.070 / 0.160
G07     141.9          16.9               10.2 +/-    0.85      24.3 +/-    0.85  0.080 / 0.140
G11     47.1           22.1                8.9 +/-    2.22      18.7 +/-    2.22  0.030 / 0.040
G13     260.8          35.6               12.1 +/-    2.11      19.1 +/-    2.11  0.040 / 0.040
G15     292.5          16.5                8.4 +/-    1.43      20.0 +/-    1.43  0.080 / 0.100
G17     266.3          78.5               11.8 +/-    0.28      12.0 +/-    0.28  0.090 / 0.100
G18     40.0           10.2                9.2 +/-    1.79      25.4 +/-    1.79  0.040 / 0.040
G19     232.7          51.2               13.2 +/-    2.04      16.5 +/-    2.04  0.050 / 0.040
G28     30.6           58.3               10.5 +/-    0.85      12.1 +/-    0.85  0.060 / 0.070
G30     144.2          51.0               11.4 +/-    0.69      14.2 +/-    0.69  0.090 / 0.090