PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-20:12:30
G02     338.7          78.8                9.2 +/-    0.46       9.3 +/-    0.46  0.140 / 0.180
G05     164.0          33.3               12.0 +/-    1.11      19.7 +/-    1.11  0.130 / 0.210
G06     41.0           40.9                7.3 +/-    1.19      10.5 +/-    1.19  0.070 / 0.170
G12     313.4          68.6                7.5 +/-    1.13       8.0 +/-    1.13  0.070 / 0.170
G17     84.5           13.1                8.7 +/-    1.88      22.7 +/-    1.88  0.030 / 0.040
G19     74.8           26.3                9.4 +/-    1.69      17.9 +/-    1.69  0.040 / 0.040
G24     228.8          22.9               13.3 +/-    1.20      27.4 +/-    1.20  0.030 / 0.040
G25     317.1          27.8                5.9 +/-    1.38      10.8 +/-    1.38  0.030 / 0.060