PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-03:42:50
G02     9.9            71.3                4.0 +/-    0.81       4.2 +/-    0.81  0.060 / 0.080
G05     159.0          42.6                6.8 +/-    1.42       9.5 +/-    1.42  0.060 / 0.080
G06     42.4           37.3                3.3 +/-    0.44       5.0 +/-    0.44  0.090 / 0.160
G12     293.8          76.1                4.1 +/-    1.04       4.3 +/-    1.04  0.110 / 0.190
G19     82.3           22.2                2.1 +/-    0.99       4.4 +/-    0.99  0.020 / 0.040
G24     220.2          16.1                4.5 +/-    2.59      10.9 +/-    2.59  0.030 / 0.030
G25     314.2          38.7                4.3 +/-    2.01       6.5 +/-    2.01  0.050 / 0.070
G29     294.5          18.6                4.7 +/-    1.19      10.7 +/-    1.19  0.040 / 0.050