PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-21:42:50
G01     37.8           10.2               11.4 +/-    7.33      31.6 +/-    7.33  0.130 / 0.180
G02     199.5          16.4               20.9 +/-    3.06      50.2 +/-    3.06  0.130 / 0.160
G06     172.1          48.7               16.8 +/-    0.80      21.6 +/-    0.80  0.100 / 0.180
G13     231.3          16.6               18.2 +/-    2.95      43.6 +/-    2.95  0.090 / 0.140
G17     8.2            66.4               13.3 +/-    0.64      14.3 +/-    0.64  0.050 / 0.060
G19     300.6          70.7               13.0 +/-    0.69      13.6 +/-    0.69  0.050 / 0.060
G24     313.1          25.8               12.1 +/-    0.94      23.2 +/-    0.94  0.080 / 0.510
G28     82.2           42.4               13.8 +/-    1.32      19.3 +/-    1.32  0.100 / 0.470
G30     156.1          18.6               18.5 +/-    1.95      42.1 +/-    1.95  0.050 / 0.040