PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-21:12:50
G01     95.5           30.5               14.3 +/-    0.99      24.8 +/-    0.99  0.090 / 0.370
G07     120.9          50.0               14.2 +/-    0.57      17.9 +/-    0.57  0.160 / 0.260
G08     42.2           15.1                9.8 +/-    1.91      24.5 +/-    1.91  0.080 / 0.090
G11     76.4           42.3               12.7 +/-    0.87      17.8 +/-    0.87  0.060 / 0.100
G13     300.0          34.0               10.9 +/-    1.70      17.6 +/-    1.70  0.030 / 0.040
G17     212.4          44.4               15.0 +/-    0.91      20.3 +/-    0.91  0.030 / 0.040
G18     69.1           24.7               11.3 +/-    1.02      22.2 +/-    1.02  0.070 / 0.140
G19     212.8          22.3               17.3 +/-    2.00      36.1 +/-    2.00  0.070 / 0.140
G28     340.9          61.9               12.4 +/-    0.67      13.9 +/-    0.67  0.020 / 0.030
G30     91.3           77.0               13.8 +/-    0.27      14.1 +/-    0.27  0.030 / 0.030