PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-19:43:10
G02     270.4          80.0                9.6 +/-    0.57       9.8 +/-    0.57  0.070 / 0.150
G05     168.6          22.6               13.0 +/-    1.11      26.9 +/-    1.11  0.070 / 0.150
G06     39.5           51.7                8.6 +/-    0.51      10.7 +/-    0.51  0.150 / 0.230
G12     320.3          57.0                7.6 +/-    0.87       8.9 +/-    0.87  0.090 / 0.200
G17     75.3           19.7                8.6 +/-    1.00      19.1 +/-    1.00  0.040 / 0.040
G19     64.3           33.1                8.6 +/-    0.40      14.2 +/-    0.40  0.040 / 0.040
G24     238.4          30.4               12.3 +/-    1.14      21.3 +/-    1.14  0.040 / 0.050
G25     317.2          17.6                9.9 +/-    2.02      23.2 +/-    2.02  0.030 / 0.060