PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-12:27:50
G01     297.2          39.0                3.6 +/-    6.03       5.4 +/-    6.03  0.060 / 0.080
G03     310.7          16.6                4.6 +/-    1.11      11.0 +/-    1.11  0.080 / 0.070
G10     115.2          31.8                3.9 +/-    1.09       6.5 +/-    1.09  0.080 / 0.070
G11     269.7          27.0                6.6 +/-    1.09      12.4 +/-    1.09  0.060 / 0.070
G14     17.1           61.5                6.2 +/-    0.84       7.0 +/-    0.84  0.040 / 0.030
G18     257.1          49.9                8.4 +/-    5.63      10.7 +/-    5.63  0.030 / 0.040
G22     313.8          38.1                3.7 +/-    1.17       5.6 +/-    1.17  0.040 / 0.040
G25     71.3           17.8                4.4 +/-    1.46      10.2 +/-    1.46  0.050 / 0.050
G31     155.8          73.8                7.8 +/-    0.54       8.1 +/-    0.54  0.050 / 0.080
G32     41.0           49.9                4.3 +/-    1.33       5.5 +/-    1.33  0.060 / 0.090