PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-22:57:40
G01     44.9           21.2                8.1 +/-    2.64      17.4 +/-    2.64  0.260 / 0.350
G06     178.9          28.1               10.1 +/-    1.72      18.4 +/-    1.72  0.240 / 0.260
G13     243.2          27.1               10.1 +/-    2.26      18.7 +/-    2.26  0.030 / 0.080
G15     276.8          14.4                7.9 +/-    1.71      19.8 +/-    1.71  0.040 / 0.050
G17     348.4          75.2                8.6 +/-    0.42       8.8 +/-    0.42  0.040 / 0.040
G19     258.0          64.8                9.2 +/-    0.80      10.1 +/-    0.80  0.040 / 0.050
G24     317.8          14.7                6.7 +/-    2.74      16.7 +/-    2.74  0.180 / 0.110
G28     57.0           52.9                9.5 +/-    0.82      11.5 +/-    0.82  0.220 / 0.140
G30     152.2          34.0               11.1 +/-    0.91      18.0 +/-    0.91  0.060 / 0.100