PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-15:57:50
G01     107.8          24.4               11.2 +/-    1.59      22.3 +/-    1.59  0.030 / 0.060
G07     107.9          54.2               12.0 +/-    0.61      14.4 +/-    0.61  0.040 / 0.070
G08     42.1           22.5               10.0 +/-    2.56      20.8 +/-    2.56  0.050 / 0.080
G09     175.8          16.4               11.4 +/-    1.78      27.3 +/-    1.78  0.040 / 0.090
G11     90.0           43.3               10.4 +/-    1.42      14.3 +/-    1.42  0.030 / 0.050
G13     310.3          28.7               10.0 +/-    1.20      18.1 +/-    1.20  0.030 / 0.040
G17     204.8          35.0               13.4 +/-    1.80      21.3 +/-    1.80  0.060 / 0.160
G18     80.5           23.8                8.9 +/-    1.51      18.0 +/-    1.51  0.070 / 0.170
G28     304.7          58.3               11.1 +/-    1.03      12.8 +/-    1.03  0.190 / 0.330
G30     35.0           78.0               12.5 +/-    0.78      12.8 +/-    0.78  0.230 / 0.400