PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-23:58:00
G01     45.0           21.1                6.2 +/-    0.85      13.3 +/-    0.85  0.060 / 0.150
G06     176.8          31.8               10.9 +/-    2.12      18.4 +/-    2.12  0.060 / 0.140
G11     44.0           11.2                7.3 +/-    0.98      19.8 +/-    0.98  0.040 / 0.070
G13     244.1          26.3               10.7 +/-    1.77      20.3 +/-    1.77  0.040 / 0.060
G15     276.6          14.4                8.1 +/-    1.78      20.5 +/-    1.78  0.030 / 0.030
G17     328.9          76.0                8.0 +/-    0.67       8.2 +/-    0.67  0.030 / 0.040
G19     260.0          64.9                7.5 +/-    0.82       8.2 +/-    0.82  0.220 / 0.490
G24     318.4          13.5                6.0 +/-    0.95      15.3 +/-    0.95  0.190 / 0.390
G28     63.3           49.6                7.9 +/-    0.81      10.0 +/-    0.81  0.040 / 0.050
G30     151.8          31.7               11.5 +/-    0.86      19.5 +/-    0.86  0.050 / 0.060