PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-17:12:40
G03     218.7          64.0               12.5 +/-    1.28      13.7 +/-    1.28  0.120 / 0.330
G07     252.5          14.5               11.6 +/-    1.36      29.2 +/-    1.36  0.100 / 0.230
G09     306.1          21.7               10.2 +/-    1.46      21.7 +/-    1.46  0.170 / 0.450
G14     103.9          10.1               12.3 +/-    2.43      34.4 +/-    2.43  0.170 / 0.350
G16     127.3          61.4               11.8 +/-    0.63      13.2 +/-    0.63  0.040 / 0.050
G22     189.2          47.6               12.2 +/-    0.70      15.9 +/-    0.70  0.040 / 0.040
G23     322.4          52.3               11.1 +/-    0.54      13.6 +/-    0.54  0.120 / 0.210
G26     66.5           52.4               10.3 +/-    1.39      12.6 +/-    1.39  0.160 / 0.170
G31     54.4           17.7                9.3 +/-    1.42      21.5 +/-    1.42  0.040 / 0.040