PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-02:58:00
G02     199.6          22.9                5.5 +/-    2.13      11.4 +/-    2.13  0.040 / 0.050
G06     173.1          52.8                7.8 +/-    1.07       9.5 +/-    1.07  0.030 / 0.070
G13     227.7          12.9                6.9 +/-    3.76      18.1 +/-    3.76  0.040 / 0.090
G17     19.5           61.0                4.3 +/-    0.57       4.9 +/-    0.57  0.040 / 0.090
G19     324.9          71.0                4.7 +/-    0.39       4.9 +/-    0.39  0.030 / 0.040
G24     310.3          29.2                4.2 +/-    1.03       7.5 +/-    1.03  0.030 / 0.040
G28     88.9           39.0                5.3 +/-    0.47       7.9 +/-    0.47  0.070 / 0.150
G30     155.9          11.0                7.3 +/-    1.37      20.0 +/-    1.37  0.070 / 0.120