PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-11:42:50
G03     188.3          17.1                3.8 +/-    3.17       8.9 +/-    3.17  0.190 / 0.170
G07     297.3          43.7                3.2 +/-    2.66       4.4 +/-    2.66  0.180 / 0.150
G08     140.6          30.1                4.5 +/-    1.90       7.8 +/-    1.90  0.070 / 0.100
G09     319.5          65.2                3.0 +/-    0.66       3.3 +/-    0.66  0.060 / 0.070
G16     42.6           36.1                2.7 +/-    0.92       4.2 +/-    0.92  0.030 / 0.040
G23     127.1          73.1                4.2 +/-    0.65       4.4 +/-    0.65  0.030 / 0.040
G27     96.7           34.9                4.2 +/-    1.00       6.7 +/-    1.00  0.050 / 0.040
G30     277.5          17.0                5.8 +/-    2.19      13.7 +/-    2.19  0.040 / 0.030