PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-18:12:30
G01     38.0           10.7                9.7 +/-    7.61      26.6 +/-    7.61  0.100 / 0.190
G02     200.1          14.3               14.8 +/-    3.27      37.4 +/-    3.27  0.110 / 0.230
G06     171.3          48.7               14.3 +/-    0.85      18.3 +/-    0.85  0.130 / 0.190
G13     231.5          16.9               12.5 +/-    2.29      29.8 +/-    2.29  0.080 / 0.180
G17     12.4           65.2               12.6 +/-    0.50      13.7 +/-    0.50  0.030 / 0.030
G19     295.0          70.0               12.5 +/-    0.60      13.3 +/-    0.60  0.040 / 0.030
G24     313.0          26.1               12.6 +/-    0.87      24.1 +/-    0.87  0.030 / 0.030
G28     81.2           43.0               13.5 +/-    0.56      18.7 +/-    0.56  0.030 / 0.030
G30     156.4          20.5               12.5 +/-    1.76      27.1 +/-    1.76  0.050 / 0.080