PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-21:57:50
G01     107.5          25.4               12.2 +/-    0.53      23.7 +/-    0.53  0.100 / 0.160
G07     105.8          59.0               13.5 +/-    0.36      15.5 +/-    0.36  0.090 / 0.140
G08     42.6           24.5                8.9 +/-    1.08      17.6 +/-    1.08  0.060 / 0.100
G09     175.6          14.8               17.5 +/-    1.67      43.7 +/-    1.67  0.110 / 0.090
G11     92.8           43.4               11.7 +/-    0.33      16.2 +/-    0.33  0.150 / 0.290
G13     310.3          27.9               10.6 +/-    1.32      19.5 +/-    1.32  0.130 / 0.310
G17     206.7          34.1               14.7 +/-    2.87      23.8 +/-    2.87  0.030 / 0.040
G18     81.5           24.3               11.7 +/-    0.98      23.3 +/-    0.98  0.030 / 0.040
G28     318.1          61.0               11.9 +/-    0.61      13.3 +/-    0.61  0.050 / 0.050
G30     36.0           78.1               12.3 +/-    0.37      12.5 +/-    0.37  0.050 / 0.060