PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-22:43:00
G01     45.8           22.0                9.1 +/-    2.87      19.1 +/-    2.87  0.120 / 0.310
G06     179.0          27.0               15.2 +/-    1.32      28.3 +/-    1.32  0.210 / 0.260
G11     43.3           9.7                 7.8 +/-    2.17      21.8 +/-    2.17  0.060 / 0.050
G13     244.4          27.8               12.9 +/-    1.93      23.7 +/-    1.93  0.040 / 0.050
G15     277.9          14.7                8.2 +/-    1.41      20.4 +/-    1.41  0.030 / 0.040
G17     344.1          76.1               11.0 +/-    0.61      11.3 +/-    0.61  0.040 / 0.040
G19     255.4          64.0               12.0 +/-    0.70      13.2 +/-    0.70  0.220 / 0.190
G24     318.0          13.7                7.9 +/-    2.00      20.3 +/-    2.00  0.100 / 0.160
G28     55.0           53.4               10.6 +/-    0.99      12.9 +/-    0.99  0.080 / 0.080
G30     151.7          35.2               14.3 +/-    0.92      22.7 +/-    0.92  0.060 / 0.090