PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-17:27:50
G01     48.0           23.9                8.0 +/-    2.00      16.1 +/-    2.00  0.060 / 0.180
G06     176.0          29.0                9.5 +/-    1.33      17.0 +/-    1.33  0.100 / 0.150
G07     147.1          10.2               11.3 +/-    2.75      31.5 +/-    2.75  0.050 / 0.060
G11     44.1           12.7                6.8 +/-    1.42      17.9 +/-    1.42  0.060 / 0.060
G13     247.6          28.9               11.0 +/-    1.85      19.7 +/-    1.85  0.210 / 0.480
G15     282.9          14.7                9.3 +/-    1.73      23.2 +/-    1.73  0.270 / 0.400
G17     322.7          77.6               10.2 +/-    0.37      10.4 +/-    0.37  0.030 / 0.020
G19     249.5          59.6               10.4 +/-    0.80      11.9 +/-    0.80  0.020 / 0.020
G28     56.5           51.8               10.7 +/-    0.98      13.2 +/-    0.98  0.040 / 0.050
G30     151.1          39.0               11.1 +/-    0.68      16.4 +/-    0.68  0.030 / 0.040