PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-09:57:40
G02     222.3          64.9                7.2 +/-    0.49       7.9 +/-    0.49  0.040 / 0.060
G06     47.6           69.9                5.7 +/-    0.43       6.0 +/-    0.43  0.050 / 0.060
G12     320.1          41.7                5.4 +/-    1.02       7.7 +/-    1.02  0.050 / 0.110
G17     63.5           26.4                4.2 +/-    0.95       8.0 +/-    0.95  0.050 / 0.120
G19     43.0           47.5                4.3 +/-    0.37       5.6 +/-    0.37  0.120 / 0.380
G24     251.9          40.1                7.3 +/-    0.99      10.7 +/-    0.99  0.160 / 0.450
G28     125.9          10.8                5.0 +/-    2.42      13.6 +/-    2.42  0.070 / 0.080