PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-05:57:40
G02     255.3          80.1                2.3 +/-    0.55       2.4 +/-    0.55  0.120 / 0.150
G05     170.0          19.2                4.3 +/-    3.01       9.7 +/-    3.01  0.100 / 0.150
G06     39.6           58.6                4.1 +/-    0.65       4.7 +/-    0.65  0.080 / 0.130
G12     321.1          53.1                2.9 +/-    0.53       3.5 +/-    0.53  0.110 / 0.130
G17     72.8           21.7                2.8 +/-    1.48       5.9 +/-    1.48  0.030 / 0.060
G19     60.3           36.6                3.1 +/-    1.17       4.7 +/-    1.17  0.040 / 0.040
G24     243.5          33.4                4.5 +/-    2.03       7.4 +/-    2.03  0.030 / 0.040
G25     317.2          14.0                1.7 +/-    2.57       4.4 +/-    2.57  0.040 / 0.040