PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-17:43:00
G01     53.4           27.4                8.7 +/-    2.30      16.1 +/-    2.30  0.040 / 0.060
G06     178.9          19.6               14.2 +/-    1.74      31.6 +/-    1.74  0.040 / 0.050
G07     143.8          12.0               10.9 +/-    3.26      29.1 +/-    3.26  0.110 / 0.320
G11     45.5           18.6                9.6 +/-    1.46      21.9 +/-    1.46  0.140 / 0.260
G13     254.2          33.4               11.8 +/-    2.30      19.3 +/-    2.30  0.120 / 0.210
G15     287.3          16.4               10.6 +/-    2.03      25.6 +/-    2.03  0.130 / 0.210
G17     282.5          78.5               12.3 +/-    0.77      12.5 +/-    0.77  0.070 / 0.140
G19     239.4          57.1               13.2 +/-    2.34      15.4 +/-    2.34  0.070 / 0.170
G28     37.2           57.5               10.9 +/-    1.05      12.7 +/-    1.05  0.080 / 0.110
G30     146.7          42.5               13.5 +/-    0.67      18.9 +/-    0.67  0.080 / 0.080