PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-23:27:50
G01     47.1           23.2                8.1 +/-    1.66      16.4 +/-    1.66  0.420 / 0.390
G06     179.8          24.6               11.9 +/-    1.61      23.4 +/-    1.61  0.130 / 0.210
G11     43.6           11.2                8.2 +/-    2.61      22.2 +/-    2.61  0.050 / 0.050
G13     246.2          29.0               10.1 +/-    1.86      18.2 +/-    1.86  0.050 / 0.050
G15     279.8          15.1                6.9 +/-    1.68      17.2 +/-    1.68  0.040 / 0.030
G17     338.5          77.2                9.4 +/-    0.75       9.6 +/-    0.75  0.050 / 0.040
G19     251.6          62.4               11.0 +/-    0.46      12.2 +/-    0.46  0.070 / 0.070
G24     318.3          12.4                7.1 +/-    1.89      18.8 +/-    1.89  0.070 / 0.060
G28     52.4           54.0                9.8 +/-    0.95      11.7 +/-    0.95  0.120 / 0.170
G30     151.1          37.4               11.8 +/-    1.28      17.9 +/-    1.28  0.070 / 0.120