PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-00:27:30
G02     199.5          17.4                9.8 +/-    1.24      22.9 +/-    1.24  0.090 / 0.120
G06     176.7          45.3                9.6 +/-    1.00      12.8 +/-    1.00  0.070 / 0.120
G13     229.4          16.0                9.8 +/-    2.01      23.9 +/-    2.01  0.260 / 0.340
G17     19.6           61.7                7.5 +/-    0.95       8.4 +/-    0.95  0.160 / 0.330
G19     307.0          71.4                7.1 +/-    0.70       7.4 +/-    0.70  0.130 / 0.200
G24     311.3          28.3                6.5 +/-    1.41      11.7 +/-    1.41  0.320 / 0.360
G28     80.2           44.9                9.2 +/-    0.78      12.4 +/-    0.78  0.100 / 0.180
G30     156.4          18.0               10.8 +/-    0.80      24.9 +/-    0.80  0.110 / 0.160