PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-18:42:50
G03     187.0          15.2               12.9 +/-    2.63      31.9 +/-    2.63  0.220 / 0.310
G07     298.6          44.2               10.7 +/-    1.17      14.6 +/-    1.17  0.210 / 0.290
G08     136.1          32.3               15.4 +/-    0.96      25.7 +/-    0.96  0.060 / 0.090
G09     319.1          66.9                7.6 +/-    0.90       8.2 +/-    0.90  0.060 / 0.090
G16     42.7           39.7                8.8 +/-    1.09      12.9 +/-    1.09  0.130 / 0.350
G23     127.8          76.6               12.1 +/-    0.52      12.4 +/-    0.52  0.150 / 0.370
G26     44.5           11.5               10.4 +/-    2.40      28.0 +/-    2.40  0.030 / 0.040
G27     96.7           35.5               12.4 +/-    0.59      19.5 +/-    0.59  0.040 / 0.040
G30     277.4          15.7               11.7 +/-    1.42      28.7 +/-    1.42  0.050 / 0.080