PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-21:58:00
G01     101.7          28.2               13.0 +/-    2.00      23.6 +/-    2.00  0.070 / 0.150
G07     114.1          54.7               12.8 +/-    0.44      15.3 +/-    0.44  0.060 / 0.140
G08     42.1           19.8                8.9 +/-    1.74      19.7 +/-    1.74  0.040 / 0.070
G11     84.7           43.4               12.3 +/-    0.52      17.0 +/-    0.52  0.040 / 0.060
G13     305.6          31.2               11.7 +/-    1.59      19.9 +/-    1.59  0.080 / 0.260
G17     209.2          39.6               14.0 +/-    1.48      20.5 +/-    1.48  0.070 / 0.080
G18     75.3           24.9               12.6 +/-    0.72      24.8 +/-    0.72  0.050 / 0.070
G19     210.7          17.3               -4.3 +/-    8.75     -10.2 +/-    8.75  0.040 / 0.080
G28     329.5          61.7               10.6 +/-    0.90      11.9 +/-    0.90  0.040 / 0.080
G30     65.6           78.6               11.2 +/-    0.86      11.4 +/-    0.86  0.070 / 0.180